Re: Installing RedHat 7.5 on z/VM 7.1 [EXTERNAL]

[Feller, Paul]

Neale, thanks.. I'll give this information to my team member.

Thanks.. 
  
Paul Feller
GTS Mainframe Technical Support

-Original Message-
From: Linux on 390 Port  On Behalf Of Neale Ferguson
Sent: Saturday, October 3, 2020 1:30 AM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Installing RedHat 7.5 on z/VM 7.1 [EXTERNAL]

I have the DVD mounted on a LinTel box and configured for NFS:

root=live:nfs://172.32.26.45/export/redhat/rhel7/s390x/iso/images/install.img
ramdisk_size=131072 cio_ignore=all,!condev
CMSDASD=191 CMSCONFFILE=rhel.conf

NETTYPE='qeth'
SUBCHANNELS='0.0.0340,0.0.0341,0.0.0342'
PORTNO='0'
LAYER2='1'
HOSTNAME='rhel7.devlab.sinenomine.net'
IPADDR='172.32.26.72'
NETMASK='255.255.255.0'
GATEWAY='172.32.26.1'
DNS='172.32.26.80:172.32.26.81'
SEARCHDNS='dev.sna.net:sna.net'
DASD='150-158'

Neale Ferguson

On 10/3/20, 02:17, "Linux on 390 Port on behalf of Feller, Paul" 
 wrote:

It has been sometime between RedHat installs.  The person who is doing the 
install has the following question for the group.


If anybody has done an install of RedHat 7.5 on z/VM, and if they would 
like to share the PRM and CMSCONFFILE file they used?


Thanks..

Paul Feller
GTS Mainframe Technical Support




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Installing RedHat 7.5 on z/VM 7.1

[Feller, Paul]

It has been sometime between RedHat installs.  The person who is doing the 
install has the following question for the group.


If anybody has done an install of RedHat 7.5 on z/VM, and if they would like to 
share the PRM and CMSCONFFILE file they used?


Thanks..

Paul Feller
GTS Mainframe Technical Support




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Re: Issue cloning RHEL server

[Feller, Paul]

I wanted to update everyone on our issue.  Here is the comment from my team 
member who is working the issue.


I've isolated the problem to the disk copy using the dd utility rather than the 
mount and update of the cloned root file system as I first thought.  I've found 
that if I use the 'oflag=direct' option on the dd utility that it appears to 
keep the I/O from overwhelming the DASD subsystem.  At this time we're talking 
with the vendor about what the root cause of the I/O errors is.



Thanks..

Paul Feller
AGT Mainframe Technical Support

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Re: Issue cloning RHEL server

[Feller, Paul]

Everyone.. We have gone down the road of opening a problem ticket with the DASD 
vendor.  We'll see how far this goes.

Thanks..

Paul Feller
AGT Mainframe Technical Support


-Original Message-
From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Alan 
Altmark
Sent: Thursday, July 26, 2018 10:52 AM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Issue cloning RHEL server

On Thursday, 07/26/2018 at 01:45 GMT, "Feller, Paul" 
 wrote:

> 

I'm thinking along the same lines as Mike. 

If this is a synchronous mirror, something seems wrong.  Is it really a 
synchronous mirror primary? It's sort of acting like an as-yet-unpopulated 
flashcopy target, which is inappropriate for a cloning operation (IMO).

There is no such thing as I/O errors ever being "ok" in any sense of the 
word during a copy operation.  "Detected capacity change"?   A capacity 
change event is driven by hardware and it's not something you expect to see 
during a copy.  (Assuming Linux isn't mis-reporting the event.)

Alan Altmark

Senior Managing z/VM and Linux Consultant IBM Systems Lab Services IBM Z 
Delivery Practice ibm.com/systems/services/labservices
office: 607.429.3323
mobile; 607.321.7556
alan_altm...@us.ibm.com
IBM Endicott


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Re: Issue cloning RHEL server

[Feller, Paul]

Mike, interesting question.  The DASD subsystem is an EMC VMAX3 all flash 
array.  I think this is the first time we have tried to do the cloning process 
while on this DASD box.  I'll have to talk to the team member about what all is 
done during the cloning process.


Thanks..

Paul Feller
AGT Mainframe Technical Support


-Original Message-
From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Michael 
MacIsaac
Sent: Thursday, July 26, 2018 9:12 AM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Issue cloning RHEL server

Paul,

I don't want to point fingers, but is it possible there is a defect with your 
disk controller?  That code has (had) been fairly well used, and I've never 
seen errors with file system corruption.  Not good.

Hope this helps.

-Mike

On Thu, Jul 26, 2018 at 9:46 AM Feller, Paul 
wrote:

> Mike, here are the answers to your questions.
>
>
> Can you post the contents of the clone script?  Is it based on the 
> code starting on p. 528?
>
> >>>> Yes, we're using that one with no modifications
>
> When you say "  corrupts one or more of the copy's file systems", can 
> you be more specific?
>
> >>>> These are the errors I'm seeing (multiple occurrences in most 
> >>>> cases
> but I'll skip the duplication)
>
> This happens when the LNXADMIN machine is copying the root file system 
> disk (100), then mounting the clone's root file system, doing the IP 
> update, and unmounting it. The' FORMAT F - Operation terminated' 
> errors are somewhat expected - we're using replicated DASD devices and 
> Linux doesn't like the delay in acknowledging writes but deals with it ok.
>
>  dasd-eckd 0.0.: New DASD 3390/0C (CU 3990/01) with 5008 
> cylinders, 1  dasd-eckd 0.0.: DASD with 4 KB/block, 3605760 KB 
> total size, 48 KB/t dasdd:VOL1/  0X0100: dasdd1 dasdd2
>  DCVML91 : dasd-eckd 0.0.: FORMAT F - Operation Terminated
>  DCVML91 : dasd-eckd 0.0.: FORMAT F - Operation Terminated
>  DCVML91 : dasd-eckd 0.0.: FORMAT F - Operation Terminated
>  DCVML91 : dasd-eckd 0.0.: DASD with 4 KB/block, 3605760 KB total 
> size, 48 KB/track, compatible disk layout
>   dasdd:detected capacity change from 0 to 3692298240
>   dasdd:Expected Label VOL1 not found, treating as CDL formated Disk
>
>   dasdd:VOL1/  0X:
>  DCVML91 : dasd-eckd 0.0.: FORMAT F - Operation Terminated
>  DCVML91 : dasd-eckd 0.0.: FORMAT F - Operation Terminated
>  DCVML91 : dasd-eckd 0.0.: FORMAT F - Operation Terminated
>  DCVML91 : __ratelimit: 760 callbacks suppressed
>  __ratelimit: 78441 callbacks suppressed  Buffer I/O error on device 
> dasdd, logical block 824597  lost page write due to I/O error on dasdd  
> Buffer I/O error on device dasdd, logical block 824598  lost page 
> write due to I/O error on dasdd  Buffer I/O error on device dasdd, 
> logical block 824599  lost page write due to I/O error on dasdd  
> Buffer I/O error on device dasdd, logical block 824600  lost page 
> write due to I/O error on dasdd  Buffer I/O error on device dasdd, 
> logical block 824601  lost page write due to I/O error on dasdd Buffer 
> I/O error on device dasdd, logical block 824602  lost page write due 
> to I/O error on dasdd Buffer I/O error on device dasdd, logical block 
> 824603  lost page write due to I/O error on dasdd Buffer I/O error on 
> device dasdd, logical block 824604  lost page write due to I/O error 
> on dasdd Buffer I/O error on device dasdd, logical block 824605  lost 
> page write due to I/O error on dasdd Buffer I/O error on device dasdd, 
> logical block 824606  lost page write due to I/O error on dasdd
> DCVML91 :
> end_request: I/O error, dev dasdd, sector 6607016
> end_request: I/O error, dev dasdd, sector 6608040
> end_request: I/O error, dev dasdd, sector 6609064  I/O errors>
>
> When the cloned guest boots up I get this, though the exact errors 
> vary from corrupting two or three file systems to just the root.  I've 
> noticed the last few times I've test this that's it pretty 
> consistently the same INODE getting hit.
>
> Enabling local filesystem quotas:  EXT4-fs error (device dm-0):
> __ext4_ext_check_block: bad header/extent in inode #5136: invalid 
> magic - magic 0, entries 0, max 0(0), depth 0(0) EXT4-fs error (device dm-0):
> __ext4_ext_check_block: bad header/extent in inode #5136: invalid 
> magic - magic 0, entries 0, max 0(0),  depth 0(0) EXT4-fs error (device dm-0):
> __ext4_ext_check_block: bad header/extent in inode #5136: invalid 
> magic - magic 0, entries 0, max 0(0), depth 0(0) EXT4-fs error (device dm-0):
> __ext4_ext_check_block: bad header/extent in inode #5136: invalid 
> magic - magic 0, entries 0, 

Re: Issue cloning RHEL server

[Feller, Paul]

tries 0, max 0(0), depth 0(0)
/etc/rc.d/rc.sysinit: line 667:  1151 Bus error   dmesg -s 131072 > 
/var/log/dmesg
/etc/rc.d/rc.sysinit: line 670:  1152 Bus error   touch /.autofsck 
&>/dev/null
DCVML99 : 
EXT4-fs error (device dm-0): __ext4_ext_check_block: bad header/extent in inode 
#5136: invalid magic - magic 0, entries 0, max 0(0), depth 0(0)
init: rc main process (1158) killed by BUS signal

Thanks..

Paul Feller
AGT Mainframe Technical Support

-Original Message-
From: Feller, Paul 
Sent: Wednesday, July 25, 2018 4:15 PM
To: 'Linux on 390 Port' 
Subject: RE: Issue cloning RHEL server

Mike, I'll get with the team member.  He does more of the zLinux type stuff and 
I do more of the z/VM type stuff.

Thanks..

Paul Feller
AGT Mainframe Technical Support

-Original Message-
From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Michael 
MacIsaac
Sent: Wednesday, July 25, 2018 1:19 PM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Issue cloning RHEL server

Paul,

Can you post the contents of the clone script?  Is it based on the code 
starting on p. 528?

When you say "  corrupts one or more of the copy's file systems", can you be 
more specific?

Thanks.

-Mike

On Wed, Jul 25, 2018 at 1:08 PM Feller, Paul 
wrote:

> One of my team members is trying to run the cloning process described 
> in "The Virtualization Cookbook for z/VM 6.3, RHEL 6.4 and SLES 11 SP3 
> October 2013, January 2014 (SG-248147-00)".  I believe the process has 
> worked in the past.  But as things go the environment has changed over time.
>
>
> Here is the question from the team member.
>
> We are still using the cloning process documented in, and scripts 
> provided with, "The Virtualization Cookbook for z/VM 6.3, RHEL 6.4 and 
> SLES 11 SP3 October 2013, January 2014 (SG-248147-00)".  It's been 
> sometime since I last used the process to create a new zLinux system 
> and when I try now I'm finding that the procedure to update the IP 
> information on the clone copy corrupts one or more of the copy's file 
> systems.  I can use DDR to build a bootable system from the gold image 
> so I'm fairly sure the dasd copy process is working ok.  The gold 
> image is not corrupted.  It boots without an error and so does the DDR copy.
>
> We're currently running z/VM 6.4 (RSU1801).  The 'LNXADMIN' system is 
> running Linux version 2.6.32-504.8.1.el6.s390x (Red Hat 4.4.7-4) and 
> that's what we're cloning.  Has anyone experienced this problem and 
> found a work around?
>
>
> Thanks..
>
> Paul Feller
> AGT Mainframe Technical Support
>
>
>
>
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Re: Issue cloning RHEL server

[Feller, Paul]

.:\\\.:g')  }

#+--+
function findTargetIP()
# Get my new IP address and hostname
#+--+
 {
  targetParm="$targetID.$parmType"
  cmsfslst -d $Adisk | grep $targetID | grep $parmType > /dev/null
  rc=$?
  if [ $rc != 0 ]; then
echo "$0: $targetParm not found on 191 minidisk. Exiting"
exit 3
  fi
  export local $(cmsfscat -a -d $Adisk $targetParm)
  targetName=$Hostname
  targetHost=${Hostname%%.*}  # Chop domain name off to leave host name
  targetIP=$HostIP
  targetLdapIP=$LdapIP
  targetLdapHost=$LdapHostname
 }

#+--+
function modifyIP()
# Modify IP address and host name in /etc/HOSTNAME, /etc/hosts and #  
/etc/sysconfig/network/ifcfg-qeth-bus-ccw-$ReadChannel
#+--+
 {
  # TODO: this function should also modify, DNS, Gateway, broadcast, etc.
  eth0file="/etc/sysconfig/network/ifcfg-eth0"
  ldapfile="/etc/ldap.conf"
  echo ""
  echo "$0: changing (escaped) $sourceName to $targetName in /etc/HOSTNAME"
  sed --in-place -e "s/$sourceName/$targetName/g" /etc/HOSTNAME
  echo "$0: changing $sourceHost to $targetHost and IP address in /etc/hosts"
  sed --in-place -e "s/$sourceHost/$targetHost/g" \
 -e "s/$sourceIP/$targetIP/g" /etc/hosts
  echo "$0: changing (escaped) $sourceIP to $targetIP in $eth0file"
  sed --in-place -e "s/$sourceIP/$targetIP/g" $eth0file
  echo "$0: changing (escaped) $sourceLdapIP to $targetLdapIP in $ldapfile"
  sed --in-place -e "s/$sourceLdapIP/$targetLdapIP/g" $ldapfile
  echo "$0: changing (escaped) $sourceLdapHost to $targetLdapHost in $ldapfile"
  sed --in-place -e "s/$sourceLdapHost/$targetLdapHost/g" $ldapfile
  hostname $targetHost
 }

#+--+
function genSSHkeys()
# Regenerate a set of SSH keys
#+--+
 {
  rm /etc/ssh/ssh_host_*
  ssh-keygen -t rsa -N "" -q -f /etc/ssh/ssh_host_rsa_key
  ssh-keygen -t dsa -N "" -q -f /etc/ssh/ssh_host_dsa_key
  ssh-keygen -t rsa1 -N "" -q -f /etc/ssh/ssh_host_key  }

# main()
# global variables
sourceID="S11RWMNT"   # VM user ID where first Linux was installed
parmType="PARM-S11"   # File type of parameter file on 191 disk

# function calls
findID
enableAdisk
findSourceIP
findTargetIP
modifyIP
genSSHkeys
chkconfig boot.findself off  # run only once => turn self off


-Original Message-
From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Feller, 
Paul
Sent: Wednesday, July 25, 2018 1:06 PM
To: LINUX-390@VM.MARIST.EDU
Subject: Issue cloning RHEL server

One of my team members is trying to run the cloning process described in "The 
Virtualization Cookbook for z/VM 6.3, RHEL 6.4 and SLES 11 SP3 October 2013, 
January 2014 (SG-248147-00)".  I believe the process has worked in the past.  
But as things go the environment has changed over time.


Here is the question from the team member.

We are still using the cloning process documented in, and scripts provided 
with, "The Virtualization Cookbook for z/VM 6.3, RHEL 6.4 and SLES 11 SP3 
October 2013, January 2014 (SG-248147-00)".  It's been sometime since I last 
used the process to create a new zLinux system and when I try now I'm finding 
that the procedure to update the IP information on the clone copy corrupts one 
or more of the copy's file systems.  I can use DDR to build a bootable system 
from the gold image so I'm fairly sure the dasd copy process is working ok.  
The gold image is not corrupted.  It boots without an error and so does the DDR 
copy.

We're currently running z/VM 6.4 (RSU1801).  The 'LNXADMIN' system is running 
Linux version 2.6.32-504.8.1.el6.s390x (Red Hat 4.4.7-4) and that's what we're 
cloning.  Has anyone experienced this problem and found a work around?


Thanks..

Paul Feller
AGT Mainframe Technical Support




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Re: Issue cloning RHEL server

[Feller, Paul]

Mike, I'll get with the team member.  He does more of the zLinux type stuff and 
I do more of the z/VM type stuff.

Thanks..

Paul Feller
AGT Mainframe Technical Support

-Original Message-
From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Michael 
MacIsaac
Sent: Wednesday, July 25, 2018 1:19 PM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Issue cloning RHEL server

Paul,

Can you post the contents of the clone script?  Is it based on the code 
starting on p. 528?

When you say "  corrupts one or more of the copy's file systems", can you be 
more specific?

Thanks.

-Mike

On Wed, Jul 25, 2018 at 1:08 PM Feller, Paul 
wrote:

> One of my team members is trying to run the cloning process described 
> in "The Virtualization Cookbook for z/VM 6.3, RHEL 6.4 and SLES 11 SP3 
> October 2013, January 2014 (SG-248147-00)".  I believe the process has 
> worked in the past.  But as things go the environment has changed over time.
>
>
> Here is the question from the team member.
>
> We are still using the cloning process documented in, and scripts 
> provided with, "The Virtualization Cookbook for z/VM 6.3, RHEL 6.4 and 
> SLES 11 SP3 October 2013, January 2014 (SG-248147-00)".  It's been 
> sometime since I last used the process to create a new zLinux system 
> and when I try now I'm finding that the procedure to update the IP 
> information on the clone copy corrupts one or more of the copy's file 
> systems.  I can use DDR to build a bootable system from the gold image 
> so I'm fairly sure the dasd copy process is working ok.  The gold 
> image is not corrupted.  It boots without an error and so does the DDR copy.
>
> We're currently running z/VM 6.4 (RSU1801).  The 'LNXADMIN' system is 
> running Linux version 2.6.32-504.8.1.el6.s390x (Red Hat 4.4.7-4) and 
> that's what we're cloning.  Has anyone experienced this problem and 
> found a work around?
>
>
> Thanks..
>
> Paul Feller
> AGT Mainframe Technical Support
>
>
>
>
> --
> For LINUX-390 subscribe / signoff / archive access instructions, send 
> email to lists...@vm.marist.edu with the message: INFO LINUX-390 or 
> visit 
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Issue cloning RHEL server

[Feller, Paul]

One of my team members is trying to run the cloning process described in "The 
Virtualization Cookbook for z/VM 6.3, RHEL 6.4 and SLES 11 SP3 October 2013, 
January 2014 (SG-248147-00)".  I believe the process has worked in the past.  
But as things go the environment has changed over time.


Here is the question from the team member.

We are still using the cloning process documented in, and scripts provided 
with, "The Virtualization Cookbook for z/VM 6.3, RHEL 6.4 and SLES 11 SP3 
October 2013, January 2014 (SG-248147-00)".  It's been sometime since I last 
used the process to create a new zLinux system and when I try now I'm finding 
that the procedure to update the IP information on the clone copy corrupts one 
or more of the copy's file systems.  I can use DDR to build a bootable system 
from the gold image so I'm fairly sure the dasd copy process is working ok.  
The gold image is not corrupted.  It boots without an error and so does the DDR 
copy.

We're currently running z/VM 6.4 (RSU1801).  The 'LNXADMIN' system is running 
Linux version 2.6.32-504.8.1.el6.s390x (Red Hat 4.4.7-4) and that's what we're 
cloning.  Has anyone experienced this problem and found a work around?


Thanks..

Paul Feller
AGT Mainframe Technical Support




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Re: hyperpav setup

[Feller, Paul]

First thing is does your DASD subsystem support HyperPAV?  You will not get 
very far if the DASD subsystem does not have that feature defined.  Second the 
IOGEN must be setup to allow for BASE and ALIAS devices.  After all of that is 
in place you can then worry about the z/VM and zLinux definitions.

Thanks..

Paul Feller
AGT Mainframe Technical Support

-Original Message-
From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of wallter 
manning
Sent: Wednesday, November 05, 2014 12:50
To: LINUX-390@VM.MARIST.EDU
Subject: hyperpav setup

We've been trying to understand how to enable/configure hyperpav on our linux 
guests.  Our minidisks are "regular" minidisks:
vmcp q mdisk 0500 details
TargetID Tdev OwnerID  Odev Minidisk  DEVNO Duplex
AA   0500 AA   0500 Regular   NoNo
 
vmcp q mdisk 0501 details
TargetID Tdev OwnerID  Odev Minidisk  DEVNO Duplex
AA0001   0501 AA   0501 Regular   NoNo
Can hyperpav be utilized if our minidisks are regular?
If not, does anyone have experience on how we can instruct our z/vm team to 
move to a supported configuration?
Thanks,
-W
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Question about going from z/VM 5.4 to z/VM 6.3

[Feller, Paul]

We have a configuration of three VM lpars running 5.4.  We share RACF and 
DIRMAINT across all three lpars.  This is a Linux only environment under VM.  
We have started the planning of converting to 6.3.  In talking with some people 
from IBM we have determined that we should not try to share DIRMAINT between 
the 5.4 systems and 6.3 systems.  We are thinking about SSI and what it could 
do for us.  We are looking at how do we migrate to 6.3.

One option that came up was a big bang approach.  The idea being we create a 
three system SSI cluster 2nd level and test as much as we can.  Even if we 
didn't do SSI we would still create all three new systems 2nd level so we could 
test the RACF and DIRMAINT sharing.  Then on some weekend during our 
maintenance window we would bring down the three 5.4 systems and startup the 
new 6.3 systems 1st level.  Do as much testing as we can and if nothing breaks 
move forward.

Has anyone tried to do this type of migration to 6.3?  Have our wheels come off 
the train for even thinking about doing the migration this way?

Thanks..

Paul Feller
AGT Mainframe Technical Support



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Re: [ANNOUNCE] s390 31 bit kernel support removal

[Feller, Paul]

This has been an interesting email string to read.  One question I would have 
is if companies are not upgrading hardware (for whatever reason) are they 
really looking at upgrading the software.  Would it be the case that both the 
hardware and software are doing the job and there is no need (or desire) to 
upgrade the software.

Also there is the issue of the more (features/hardware) you try to support, the 
more complex things become, the bigger the foot print of the software.  I would 
think it would also get harder to do newer release or to add new functionality.

Thanks..

Paul Feller
AGT Mainframe Technical Support

-Original Message-
From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of David 
Boyes
Sent: Thursday, February 13, 2014 20:13
To: LINUX-390@VM.MARIST.EDU
Subject: Re: [ANNOUNCE] s390 31 bit kernel support removal

> putting a
> modern Linux on 15 year old machines seems weird when you can buy an
> intel or maybe if thats too much maybe recycle a PC that was running
> windows XP?

It's not that weird if it's the most stable system you have and it has enough 
spare capacity to do the job adequately. As you know from experience, in these 
very little customers, that's likely to be the case. They might not have any 
other choice with spending freezes in effect -- even PCs cost money.   

Heiko asked for comments/opinions. I think he may have gotten more than he 
expected. 8-)

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Re: RACFSMF issues

[Feller, Paul]

We use the "XAUTOLOG RACFSMF #RACFVM" every day to switch around the RACF SMF 
data files and prepare the data to be FTPed to z/OS.  RACFSMF will startup do 
its thing and then logoff.

Sample of messages on OPERATOR console

23:20:00 AUTO LOGON  ***   RACFSMF  USERS = 26BY WAKEUP 
  
23:20:00  * MSG FROM RACFSMF : SMF Switch has been attempted for RACFVM 
  
RACFVM  : PUN FILE 0226 SENT TO   RACFSMF  RDR AS  3732 RECS 0002 CPY  001 A 
NOHOLD NOKEEP
23:20:00  * MSG FROM RACFSMF : SMF DATA F for RACFVM copied to RACFSMF SMF13259 
DATA G
23:20:00  * MSG FROM RACFSMF : RACFSMF SMF DATA F Moved to RACFSMF SMF DATA A   
  
23:20:01  * MSG FROM RACFSMF : AEGSMFC EXEC COMPLETED   
  
23:20:01 USER DSC   LOGOFF AS  RACFSMF  USERS = 25  
  

Thanks..

Paul Feller
AGT Mainframe Technical Support
paul.fel...@transamerica.com
(319)-355-7824


-Original Message-
From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Scott 
Rohling
Sent: Wednesday, September 18, 2013 13:16
To: LINUX-390@VM.MARIST.EDU
Subject: Re: RACFSMF issues

To see what's happening on RACFSMF try (one long command):

CP XAUTOLOG RACFSMF SYNCH#CP SET SECUSER RACFSMF *

Alter the RACFSMF PROFILE EXEC to add Trace I if watching the startup
doesn't give you enough clues.  (I'm not sure what RACFSMF is 'supposed' to
be doing myself offhand)

Scott Rohling


On Wed, Sep 18, 2013 at 10:58 AM, Will, Chris  wrote:

> How do I start the racfsmf process and specify the service machine name.
>  I am doing this from maint.
>
> xautolog racfsmf
>  ICH70001I RACFSMF  LAST ACCESS AT 13:50:59 ON WEDNESDAY, SEPTEMBER 18,
> 2013
> 13:55:06 Command accepted
> Ready; T=0.01/0.01 13:55:06
> 13:55:06 AUTO LOGON  ***   RACFSMF  USERS = 26BY MAINT
> 13:55:06 HCPCLS6056I XAUTOLOG information for RACFSMF: The IPL command is
> verifi
> ed by the IPL command processor.
> 13:55:06 USER DSC   LOGOFF AS  RACFSMF  USERS = 25
>
> When I use the example from the documentation it still doesn't work.
>
> Xautolog racfsmf #racfvm
>
> xautolog racfsmf
> racfvm
>  ICH70001I RACFSMF  LAST ACCESS AT 13:55:06 ON WEDNESDAY, SEPTEMBER 18,
> 2013
> 13:56:28 Command accepted
> Ready; T=0.01/0.01 13:56:28
> Unknown CP/CMS command
> 13:56:28 AUTO LOGON  ***   RACFSMF  USERS = 26BY MAINT
> 13:56:28 HCPCLS6056I XAUTOLOG information for RACFSMF: The IPL command is
> verifi
> ed by the IPL command processor.
> 13:56:28 USER DSC   LOGOFF AS  RACFSMF  USERS = 25
>
> I ran a rexx trace on this and it looks like it doesn't come up with any
> server names (i.e.racfvm).
>
> Chris Will
>
>
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Re: Z9 to Z114, Z/VM5.4 to Z/VM6.2 and moving Z/OS to a guest?

[Feller, Paul]

I can answer #3.  Yes z/VM 5.4 will run on a z114.  We are running it on a z196 
(big brother to z114), but we had to apply maintenance to z/VM 5.4.  

You can find a list of PTFs for z/VM 5.4 to support the z196 and z114 at 
http://www.vm.ibm.com/service/vmreqze.html

Thanks..

Paul Feller
AGT Mainframe Technical Support

-Original Message-
From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Bruce Arro
Sent: Monday, May 27, 2013 4:41 AM
To: LINUX-390@VM.MARIST.EDU
Subject: Z9 to Z114, Z/VM5.4 to Z/VM6.2 and moving Z/OS to a guest?

Hi list

Looking for the way forward.

Have a Z9 with 1 CP and 5 IFL's. Have 4 X Z/VM 5.4 LPARS with various versions 
of SUSE Linux running as guests and a Z/OS Prod and Test Lpar.

Are installing a Z114 in a few weeks time and would like to upgrade to Z/VM 6.2 
also

Questions.

1) Is it easier to move the Z/VM 5.4 Lpars over with the Suse Guest's and then 
upgrade to Z/VM 6.2? Or should I install Z/VM 6.2 and then move the guests 
(Will keep all of the device address's the same on the new machine.)

2) According to IBM Z/OS 1.7 will not run natively in an LPAR on the Z114. We 
need to run it under Z/VM as a guest. Has anyone run into this problem? - 
Though I would create a separate Lpar with Z/VM and 2 X Z/OS guests (Prod an 
Test)

3) Does Z/VM 5.4 run on a Z114?

Regards
Bruce Arro

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Re: Linux EAV and DFSMSDSS

[Feller, Paul]

I don't have the EAV disk but we do use z/OS DFDSS to backup and restore Linux 
disk.  The main thing is to have the control cards setup properly for both the 
backup and restore.  Here is an example of the backup and restore of a 3390 
mod9 format.

DUMP -  
 INDD(DASD)-
 OUTDD(TAPE1)  -
 ADMINISTRATOR -
 CONCURRENT-
 CPVOLUME  -
 OPTIMIZE(4)   -
 TRKS(0,0,10016,14) 

RESTORE -
  ADMINISTRATOR -
  TRKS(0,0,10016,14)-
  INDD(TAPE1)   -
  OUTDD(DASD)   -
  CPVOLUME  -
  PURGE  

I'm not sure what it would look like for a EAV volume.


ADR024E (ttt)-m(yy), TRACKS/OUTTRACKS VALUE IS INVALID FOR DEVICE.   
   VALID CYLINDER RANGE IS 0 TO X'ccc'. VALID TRACK RANGE IS 0 TO
   X'h'  
 
Explanation:  The following values are not valid for the specified device
types: (1) the range specified in the TRACKS keyword of a DUMP, COPY,
RESTORE, or PRINT, or (2) the range specified for the OUTTRACKS keyword  
for COPY or RESTORE. The TRACKS values must fall within the cylinder and 
track range indicated in the message. The  and  are high cylinder
and head numbers, respectively, in decimal notation. 
 
System Action:  The task ends. Processing continues with the next control
statement. The return code is 8. 


Paul Feller
AGT Mainframe Technical Support

-Original Message-
From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Rob van 
der Heij
Sent: Friday, January 11, 2013 8:04 AM
To: LINUX-390@VM.MARIST.EDU
Subject: Linux EAV and DFSMSDSS

Anyone doing his Linux backups (and restore) with DFSMSDSS maybe?

A friend wanted to start using EAV and defined some 170G disks,
through DEVNO managed on z/VM.  And while it seems the backup may have
worked, the restore certainly doesn't and complains with ADR024E and
some strange cylinder range. I'm told the big disks go in cylinder
managed space rather than track managed, but my source did not have
APAR or further detail.

The customer is reluctant to put his crown jewels on a disk with no
backup. Anyone got the recipe for backup & restore?

Thanks, Rob

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Re: Adding LCPUS to a LPAR dynamically

[Feller, Paul]

I've only done this with my z/OS lpars, but in the HMC profile you can have 
reserve CPs defined to the lpar.  The number of reserve CPs can be more then 
the number of physical CPs.  If you dynamically add move physical CPs to your 
CEC you can then bring online more logical CPs to one or more lpars.  As far as 
I know you can't have more "active" logical CPs then there are physical CPs.

My z/VM lpars are only using IFLs so I have all of the IFLs defined to each 
lpar.

Paul Feller
AGT Mainframe Technical Support

-Original Message-
From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Martin, 
Terry R. (CMS/CTR) (CTR)
Sent: Thursday, August 09, 2012 1:25 PM
To: LINUX-390@VM.MARIST.EDU
Subject: Adding LCPUS to a LPAR dynamically

Hi

I think I know the answer to this but wanted to confirm.

If I need to add Logical CPUS to an LPAR does this take an IPL of the LPAR to 
get them in ?

Also if I wanted to add more Logical CPUS to the LPAR than there are physical 
ones defined can I do this. This would be to avoid the need to IPL if we added 
more Physical CPUS in the future ?


Thank You,

Terry Martin
Principal Systems Engineer
Lockheed Martin
CMS - CITIC
3300 Lord Baltimore Drive, Suite 200, 21244
Engineering Computing
Mainframe Support
Cell - 443 632-4191
Home - 410 527-0286


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MIDAWs support and SLES9 & SLES10 under z/VM 5.3

[Feller, Paul]

 We are looking at activating MIDAWs support on one of our disk subsystems.  
The disk subsystem is split between z/OS and z/VM (5.3 RSU 0802).  I see that 
z/VM support MIDAWs for guest operating systems.  My question is does SLES9 or 
SLES10 have any support in it for MIDAW.  I did search the Novel website but 
did not get any hits.

Paul Feller
AIT Mainframe Technical Support

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MIDAW support and SLES9 & SLES10 under z/VM 5.3

[Feller, Paul]

 We are looking at activating MIDAW support on one of our disk subsystems.  The 
disk subsystem is split between z/OS and z/VM (5.3 RSU 0802).  I see that z/VM 
support MIDAWs for guest operating systems.  My question is does SLES9 or 
SLES10 have any support in it for MIDAW.  I did search the Novel website but 
did not get any hits.

Paul Feller
AIT Mainframe Technical Support

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Re: Z/Linux CKD DASD migration from one DASD Subsystem to another

[Feller, Paul]

 We used a product that is z/OS based to move the disk.  The product is called 
TDMF (from IBM).  We would shut down the Linux guests and z/VM to move the 
disk.  Before the move we updated the z/VM system config for any address 
changes.  After the move we restarted everything and nobody complained.


Paul Feller
AIT Mainframe Technical Support


-Original Message-
From: Linux on 390 Port [mailto:linux-...@vm.marist.edu] On Behalf Of 
tony...@bellsouth.net
Sent: Wednesday, January 21, 2009 11:02 AM
To: LINUX-390@VM.MARIST.EDU
Subject: Z/Linux CKD DASD migration from one DASD Subsystem to another
Importance: High

Hi all,
I would like to know what ways you have used to migrate z/Linux CKD DASD 
volumes from one DASD subsystem to another?  Thanks.

--


Respectfully,

Anthony Mungal
email: tony...@bellsouth.net
phone: (561) 504-9212
fax: (801)607-6787

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Re: mixing IFLs and GPs in an LPAR

[Feller, Paul]

 From the announcement information for the z10.

Increased flexibility with z/VM-mode partitions

System z10 EC provides for the definition of a z/VM-mode partition
(LPAR) containing a mix of
processor types including CPs and specialty processors IFLs, zIIPs,
zAAPs, and ICFs. With the
planned z/VM support, this new capability increases flexibility and
simplifies systems
management by allowing z/VM to manage guests to operate Linux on System
z on IFLs, to
operate z/VSE and z/OS on CPs, to offload z/OS system software overhead,
such as DB2
workloads, on zIIPs, and to provide an economical Java execution
environment under z/OS on
zAAPs, all in the same VM LPAR. 


Paul Feller 
AIT Mainframe Technical Support 
[EMAIL PROTECTED] 
(319)-355-7824 


-Original Message-
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of
Little, Chris
Sent: Thursday, June 19, 2008 1:17 PM
To: LINUX-390@VM.MARIST.EDU
Subject: mixing IFLs and GPs in an LPAR

possible?  or no?

+--+
 | Chris Little OKDHS Platform Services   |
 | IS Operating Systems Specialist IV |
 | email  [EMAIL PROTECTED]  |
 | work (405)522-1306  cell (405)312-1527 |
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Re: zVM 3.1 at 100% CPU after z9 upgrade

[Feller, Paul]

 You may want to look at the "Upgrade 2094DEVICE, subset 2094/ZVM"
information for PTFs related to z/VM 5.1.  I remember we installed some
PTFs for z/VM 5.1 when we did an install of a 2094.  I don't remember
what they are mainly because we are now on z/VM 5.3.

Paul

-Original Message-
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of
Ifurung, [EMAIL PROTECTED]
Sent: Tuesday, June 17, 2008 12:22 PM
To: LINUX-390@VM.MARIST.EDU
Subject: zVM 3.1 at 100% CPU after z9 upgrade

I asking help for my VM collegues here. We have hit a wall. I know this
is mainly a zLinux forum, but I know there's a lot of VM talent in here.

We are running production work on zVM 3.1 (don't ask why) running 2nd
level under zVM 5.1 .  Things has been running good for more than a year
until this change:  Hardware was upgraded from z990 to z9 .   Now guest
zVM3.1 is running 100% cpu; 1st level zVM 5.1 is running 100% CPU. We
can't go back to z990 because many more zOS are running in other LPARs.

Since 3.1 is out-of-support, no IBM help.Please, please help.

Thanks,

Ismael

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Re: Quick z/VM maintenance question (I hope)

[Feller, Paul]

 You may want to see what is taking up the room on the 51D disk.  Our
51D disk is only 27%.  We are at RSU0703 plus some other PTFs.  I don't
think we deleted anything off of the 51D disk between RSU installs.

q disk d

LABEL  VDEV M  STAT   CYL TYPE BLKSZ   FILES  BLKS USED-(%) BLKS LEFT
BLK TOTAL
MNT51D 51D  D   R/W26 3390 4096  279   1266-27   3414
4680
Ready; T=0.01/0.01 13:37:13



Paul Feller 

-Original Message-
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of
Peter E. Abresch Jr. - at Pepco
Sent: Thursday, May 22, 2008 1:04 PM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Quick z/VM maintenance question (I hope)

This is a brand new z/VM 5.3 that we just installed. We installed the
RSU DVD maintenance and now we are installing the latest RSU maintenance
from ShopZseries. Is it the 51D disk that is full? If so, what are the
steps to make it larger?

Peter



Chris Langford <[EMAIL PROTECTED]>
Sent by: Linux on 390 Port 
05/22/2008 01:43 PM
Please respond to
Linux on 390 Port 


To
LINUX-390@VM.MARIST.EDU
cc

Subject
Re: Quick z/VM maintenance question (I hope)






Peter E. Abresch Jr. - at Pepco wrote:
> We have the following z/VM V5.3 maintenance that we downloaded and
> detersed:
>
> S7832162 SERVLINK C1 V   4005109 94  5/22/08
12:43:47
> S7832160 SERVLINK C1 F 80672 14  5/22/08
12:37:40
> SHIPRSU3 SERVLINK C1 V   4005  18621  16040  5/22/08
12:26:53
> SHIPRSU2 SERVLINK C1 V   4005  27038  25191  5/22/08
12:26:29
> SHIPRSU1 SERVLINK C1 V   4005  19310  17021  5/22/08
12:25:59
> S7832160 SHIPRSU3 C1 F   1024  34725   8682  5/22/08
12:17:11
> S7832162 SHIPDOCS C1 F   1024 64 16  5/22/08
12:17:11
> S7832160 SHIPRSU2 C1 F   1024  49257  12315  5/22/08
12:17:06
> S7832160 SHIPRSU1 C1 F   1024  21071   5268  5/22/08
12:17:01
> S7832160 SHIPDOC  C1 F   1024 11  3  5/22/08
12:16:58
>
> We then run the following command just like the manual says:
>
> service all S7832162
> VMFSRV2760I SERVICE processing started VMFSUI2760I VMFSUFIN processing

> started VMFSIP1965E The command, EXECIO * DISKW VM $VMFUT1$ D, failed 
> with
return
> code
> 113
>


When EXECIO receives a return code from a CMS I/O operation it adds 100
to generate a return code As the operation is DISKW one can speculate
that the I/O request was FSWRITE.
Return code 13 from FSWRITE indicates  disk is full (or your SFS file
space limit is reached)

--
Chris Langford,
Cestrian Software

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Re: Where to begin?

[Feller, Paul]

 You could try http://linuxvm.org/Present/index.html

 I would start by looking at some of the cookbooks.



Paul 

-Original Message-
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of
Eric Gericke
Sent: Friday, December 14, 2007 12:27 PM
To: LINUX-390@VM.MARIST.EDU
Subject: Where to begin?

  Hi,

  My boss told me that we are going to do a pilot project using
  zLinux.  I've only a little OpenSuSE 10.3 experience from installing
  and playing with it at home.  I googled doc for zLinux and z/VM and I
  get tons of hits.  I just don't know where to start my reading. Can
  anyone point me to docs (IBM preferable) that will help me to
  build the basic knowledge I need to get started.

  Thanks and Merry Christmas,

  Eric

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Re: Betr.: Re: Dynamic I/O

[Feller, Paul]

 Watch how much memory you get on the z9 BC.  The size of the HSA jumps
up a large amount.  We just installed a z9 BC as an external coupling
facility.  We set it up for no dynamic IO changes and the HSA is still
1728 meg.


Paul Feller 
AIT Mainframe Technical Support 
[EMAIL PROTECTED] 
(319)-355-7824 


-Original Message-
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of
Peter Webb, Toronto Transit Commission
Sent: Friday, July 20, 2007 8:06 AM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Betr.: Re: Dynamic I/O

We are running on a MP2000 with 1 gig of memory. Out of that 1 gig comes
the HSA plus additional storage CP needs to allocate dynamic devices. We
have several VSE guests to support plus some CMS workload. Occasionally
during the day, we have file transfers from VSE to Windows going through
a 600 MB v-disk. The paging load during the file transfers just kills
CMS response time. Even taking a bit more main storage to increase the
HSA for dynamic I/O just isn't a good idea.

Now, if our plans to purchase a z9 BC go through, we'll be laughing.

Peter 

-Original Message-
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of
Pieter Harder
Sent: July 19, 2007 15:41
To: LINUX-390@VM.MARIST.EDU
Subject: Betr.: Re: Dynamic I/O

I don't quite get your statement on memory demands. Dynamic I/O is done
within the Hardware Storage Area (HSA) that is allocated fixed on
Power-on-Reset after analyzing your IOCDS config. The dynamic
requirements for issuing dynamic config commands is probably to small to
measure. (Barton/Rob?)

Best regards,
Pieter Harder

[EMAIL PROTECTED]
tel  +31-73-6837133 / +31-6-47272537

>>> "Peter Webb, Toronto Transit Commission" <[EMAIL PROTECTED]>
07/19/07 9:31  >>>
Funny, I was just looking into using dynamic I/O on our box. See
http://publibz.boulder.ibm.com/epubs/pdf/hcsg1b20.pdf, Part 2 Using
Dynamic I/O Configuration.

In our case we won't use it. We are memory constrained at times, and
don't need the aggravation of performance problems caused by the extra
memory demands of dynamic I/O.

Peter

-Original Message-
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of
Brad Hinson
Sent: July 19, 2007 14:37
To: LINUX-390@VM.MARIST.EDU
Subject: Dynamic I/O

I've done a couple of disk changes recently that require updates to our
IOCDS config, and it's getting hard to schedule a Power On Reset each
time to recognize the changes.  I see a checkmark on the HMC that
indicates Dynamic I/O is possible if you have the right pieces in the
config you import.  Is anyone using Dynamic I/O, or can you point me to
some docs (or perhaps another list) on this?

Also, any docs on the format of the IODEVICE (and other) statemtents in
this config would also be useful.

Thanks,
--
Brad Hinson <[EMAIL PROTECTED]>
Sr. Support Engineer Lead, System z
Red Hat, Inc.
(919) 754-4198

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Re: Question about using z/VM DCSS for sharing code under Linux

[Feller, Paul]

 Thanks for all of the replies that I have received.  One of my concerns
is that we have at this point only done one application on Linux.  That
application was a new type of work load.  That we are planning on doing
next is move some work load from other platforms over to the mainframe.
My concern is that there are enough challenges with moving the work load
without also trying to do the DCSS stuff at the same time.


Thanks
Paul 

-Original Message-
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of
barton
Sent: Sunday, June 03, 2007 10:40 AM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Question about using z/VM DCSS for sharing code under Linux

I pretty much disagree.  Tools are there, lots of storage savings
possible.   One system I
look at, i expect to save over 1/2 GB of REAL storage with xip
implementation.  machines do not need to be identical, it just takes an
understanding of how to implement, what to include and specifically how
to measure it.



David Boyes wrote:

>> I was wondering how many people are using DCSS to share code under 
>>Linux?  At this time we are looking at about 12 to 15 Linux guest 
>>divided across two lpars.  It is my understanding the Linux guest will

>>be running WebSphere and Oracle.  I have found some information on 
>>setting up the environment.  The doc talks about performance gains and

>>memory savings that has some people here interested in looking at
>
> DCSS.
>
> Unless you have a larger number of *exactly* identical guests (>50 
> would be my starting point to look at this) delivering the same 
> function within the same VM system with R/W data stored in other 
> virtual machines (ie, remote databases), it's probably not worth it.
>
> What I've observed so far with DCSS-based filesystems is at best it 
> gives you some I/O avoidance (and correspondingly, some reduction in 
> caching bloat) on the executable portions of the applications. You'll 
> still see the virtual machines bloat up to their maximum defined size;

> it'll just take longer for the kernel to dirty up the "spare" memory 
> with data pages.
>
> Given the current state of the DCSS and XIPFS tooling, it's difficult 
> to manage systems that use the DCSS/XIP function, and you need to 
> install the applications in ways to rigidly separate R/O and R/W code
and data.
> This is not trivial to accomplish, especially with the two 
> applications you mention (it can be done, but it requires major 
> surgery and an intimate knowledge of what the apps puts where and what

> it is actually up to during runtime).
>
> Also, most of the memory bloat in those two applications is in private

> R/W memory structures, which won't really benefit at all from the
DCSS.
>
> Both DCSS and XIP functions are interesting ideas, but until the 
> tooling gets more sophisticated, they're probably not going to see
much use.
>


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Question about using z/VM DCSS for sharing code under Linux

[Feller, Paul]

 I was wondering how many people are using DCSS to share code under
Linux?  At this time we are looking at about 12 to 15 Linux guest
divided across two lpars.  It is my understanding the Linux guest will
be running WebSphere and Oracle.  I have found some information on
setting up the environment.  The doc talks about performance gains and
memory savings that has some people here interested in looking at DCSS.
We are running z/VM 5.1 and SuSE 9 sp3.


Paul

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Re: Assigning/Tracking Host names

[Feller, Paul]

 Like you we are just using a execl worksheet to keep track of the Linux
host name.  We did make it a standard that the host name and VM guest
name are the same.  We keep track of the IP address as part of the execl
worksheet.


Paul Feller 
AIT Mainframe Technical Support 
[EMAIL PROTECTED] 
(319)-355-7824 

-Original Message-
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of
Lionel B. Dyck
Sent: Monday, April 30, 2007 3:02 PM
To: LINUX-390@VM.MARIST.EDU
Subject: Assigning/Tracking Host names

Given the number of servers (real and virtual) that can exist how do you
assign host names while avoiding dupliates?

We have come up with an 8 character host name standard that will also be
the z/vm guest name. The first 5 positions vary depending upon the
location, the os and the function with the last 3 positions being 001 to
999 to ensure a unique name. Right now an excel worksheet is used. This
is not something that is new so my thinking was that there had to be an
application for assigning host names and tracking information about
them.

Does anyone know of one?

Thanks

Lionel B. Dyck, Consultant/Specialist
Enterprise Platform Services, Mainframe Engineering KP-IT Enterprise
Engineering, Client and Platform Engineering Services
(CAPES)
925-926-5332 (8-473-5332) | E-Mail: [EMAIL PROTECTED]
AIM: lbdyck | Yahoo IM: lbdyck
Kaiser Service Credo: "Our cause is health. Our passion is service.
We?re here to make lives better.? 

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Re: Sizing an HTTP-server guest

[Feller, Paul]

 Have you looked at the RMFPM stuff for Linux?  The price is right, its
free.  You can use it with a browser or you can get the RMFPM software
that runs on Windows.  Its better than nothing.

http://www-03.ibm.com/servers/eserver/zseries/zos/rmf/rmfhtmls/pmweb/pml
in.html


Paul Feller 
AIT Mainframe Technical Support 
[EMAIL PROTECTED] 
(319)-355-7824 


-Original Message-
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of
Adam Thornton
Sent: Friday, March 16, 2007 1:32 PM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Sizing an HTTP-server guest

On Mar 16, 2007, at 1:16 PM, James Melin wrote:

> All of that is well and good  We can agree that my management here

> are stingy. The bottom line question is this - what native Linux 
> display commands can I use to determine the in-memory footprint of the

> httpd task(s) so I have a ballpark figure. I have a light duty DB2 
> Connect server running in 200 megs, and it's fat and happy. I just 
> would rather not guess.

ps or top will show you memory usage by process.

Adam

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Re: Server Time Protocol support for zSeries

[Feller, Paul]

 From a RedBook I just downloaded (Server Time Protocol Planning Guide
sg247280.pdf).

"The z/VM(r) operating system does not support STP or the Sysplex Timer.
It can, however,
tolerate their existence. That is, if z/VM is running on an STP-enabled
server or on a server
attached to the Sysplex Timer, z/VM continues to operate normally and
has no awareness of
STP or the Sysplex Timer.

The servers TOD is synchronized to STP or the Sysplex Timer by the LPAR
LIC. The logical
partition has a logical TOD offset from the processor TOD, which may be
set by z/VM during
IPL. If a synchronization check occurs, the LPAR LIC adjusts the logical
TOD offset for each
logical partition. To zero out the offset, the logical partition must be
deactivated and activated
again."



Paul Feller 
AIT Mainframe Technical Support 
[EMAIL PROTECTED] 
(319)-355-7824 


-Original Message-
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of
Richards.Bob
Sent: Wednesday, October 11, 2006 10:49 AM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Server Time Protocol support for zSeries

I'm confused as well. And it has been awhile since I played with this
(early days of sysplex timers, ETR, et al.)

Doesn't the z9 have a *hardware* clock *AND* a TOD clock? And isn't the
hardware clock be set by the Sysplex timer? In addition to John's NTP
daemon idea, can't z/VM get its time from the hardware clock and
subsequently z/Linux underneath z/VM? 

Or am I wrong about the hardware clock and the rest is my personal pipe
dream? :-(

Bob Richards 



-Original Message-
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of
McKown, John
Sent: Wednesday, October 11, 2006 11:41 AM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Server Time Protocol support for zSeries

> -Original Message-
> From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of 
> Dave Jones
> Sent: Wednesday, October 11, 2006 10:31 AM
> To: LINUX-390@VM.MARIST.EDU
> Subject: Re: Server Time Protocol support for zSeries
> 
> 
> That's a good question, John. As far as I know, Linux on zSeries 
> (either VM guest or native) can use an external time source to set its

> clock.
> 
> The real problem is that z/VM and it's guests can not use the same 
> time source as z/OS to sync their clocks together. Consider the case 
> where there are two LPARS in a z9-BC, one running z/OS and using STP 
> to set its clock and the other LPAR running z/VM and Linux guests with

> its time set by the operator's Timex.  :-)
> 
> DJ

I'm still a bit confused. I know that z/VM cannot set its clock to the
STP time source. But why couldn't the Linux systems under z/VM use XNTP
to set their clock to the z/OS value? z/OS 1.7 can run an NTP daemon
which the Linux instances should be able to use. I hope that would be
"close enough".

--
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Senior Systems Programmer
HealthMarkets
Keeping the Promise of Affordable Coverage Administrative Services Group
Information Technology

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Re: SLE8 and z/9

[Feller, Paul]

 We did for a short time under VM 5.1.  I think it was recommended that
we be at service pack 4. 


Paul Feller 
AIT Mainframe Technical Support 
[EMAIL PROTECTED] 
(319)-355-7824 


-Original Message-
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of
Crispin Hugo
Sent: Wednesday, September 06, 2006 3:29 PM
To: LINUX-390@VM.MARIST.EDU
Subject: SLE8 and z/9

Can anyone ell me if sle8 will run on a Z9 2096-s07 (BC) with z/VM 5.2 .
Officially they say NO. But any experience from the real world.


Crispin Hugo
Systems Programmer, Macro 4

Macro 4 plc, The Orangery, Turners Hill Road, Worth, Crawley, RH10 4SS
Direct Line: +44 (0)1293 872121 Switchboard: +44 (0) 1293 872000
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Re: 2074 and Optica relocation

[Feller, Paul]

 Could the devices on the converter channels come online to z/VM? 
 If yes, than the devices may come online when VM reacts to the channel
drop and recover.  I think VM will look down the channel to see if there
are any devices for it to bring online.  I have run into this before.
At that point you just have to vary offline the devices. 
 If no, than no problem, just some error messages.


Paul Feller 
AIT Mainframe Technical Support 
[EMAIL PROTECTED] 
(319)-355-7824 


-Original Message-
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of
Thomas Denier
Sent: Wednesday, July 19, 2006 12:27 PM
To: LINUX-390@VM.MARIST.EDU
Subject: 2074 and Optica relocation

We have a z800 with a z/VM LPAR and three z/OS LPARs. The z/VM LPAR
supports two Linux guests used to host test and production TSM servers.
We have to relocate some mainframe peripherals to accomodate
installation of new non-mainframe equipment. Specifically, we have to
relocate a 2074 console controller and a rack containing a number of
Optica ESCON to parallel channel converters. The z/VM system does not
use any of the I/O devices connected through Optica converters, but the
channel paths involved are visible to the z/VM LPAR.

My co-workers want to take down all the LPARs during the equipment move.
They argue that we don't know how z/VM will respond to interrupts
resulting from I/O devices being removed and replaced.
Scheduling downtime is difficult, since the TSM servers are busy running
backups at night, while the z/OS applications are heavily used during
the day.
Has anyone done a similar equipment move with z/VM up and running?

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Re: Moving from ESS 800 to DS8100

[Feller, Paul]

 In my environment I shutdown the Linux guest and than ran the copy from
z/OS.  I did not have to change any thing on the Linux side and was able
to restart the Linux guest without any problems.  I was also moving the
VM system volumes so I had to shutdown VM.  The software package that
was used renamed the original DASD VOLSERs to some other name when the
copy was done.  This was done to avoid duplicate VOLSERs.

 If I had not shutdown VM I would have had to take the original Linux
DASD offline to VM before the move.  When the move was done I would have
had to put the new volumes online to VM.

Paul Feller 
AIT Mainframe Technical Support 
[EMAIL PROTECTED] 
(319)-398-7824 



-Original Message-
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of
Henderson.Louis
Sent: Monday, May 22, 2006 4:04 PM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Moving from ESS 800 to DS8100


Thanks for the great information and detailed instructions.  You have
saved me bogo mips (millions of instances perusing and searching). One
further question.  I do have a z/OS system to work with and have both
DFDSS and FDR as suggested in a subsequent post:

"I don't know if you have access to a z/OS system, I did.  I had to move
my Linux DASD to a new DASD box.  I was able to take the Linux systems
down for a few hours and move the DASD from a z/OS system.  I did full
volume copies using a software package, but I think the same thing could
be done with DFDSS."

That being the case I would then start your process after "Once the two
copies are done". Right?  The best part about this is that my
current environment is not changed and I can start all over if a mistake
is made.

Louis E. Henderson
SharedServices - Mainframe  
 

-Original Message-
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of
Post, Mark K
Sent: Thursday, May 18, 2006 6:14 PM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Moving from ESS 800 to DS8100

 The SLES system will be very easy, the CentOS one a little bit more
work because of the way Red Hat uses file system labels and puts those
in /etc/fstab.

For the sake of illustration, let's assume that your device numbers and
names for the SLES system are:
0300/dev/dasda1 mounted on /
0301/dev/dasdb1 mounted on /usr
0610/dev/dasdc1 (new /)
0611/dev/dasdd1 (new /usr)

If your partitioning and mounting scheme is more complex, this method
saves you even more time and trouble.  Just expand the instructions to
cover all the partitions/file systems you might have.

Do an internal Linux disk to disk copy of the two disks:
dd if=/dev/dasda of=/dev/dasdc bs=4M
dd if=/dev/dasdb of=/dev/dasdd bs=4M
You can make the blocksize larger or smaller.  Note that I used the
whole device nodename, not the partitions, i.e. dasda versus dasda1.
This makes sure the IPL text, partition tables, etc. get copied.

Before the next step, you may need to run fdasd on the two new volumes,
just to make sure the newly-created partition table gets read: fdasd
/dev/dasdc1 w fdasd /dev/dasdd1 w

Once the two copies are done, mount them on /mnt, as they would be on
the new storage array. mount /dev/dasdc1 /mnt mount /dev/dasdd1 /mnt/usr

chroot /mnt
This will cd to /mnt, then change the environment so that it now appears
to be the root directory, hence the name "change root."  What you want
to do now is edit /etc/zipl.conf so that only the two new volumes are in
your dasd list.  Save the changes, then re-run zipl.  Make sure the
messages that come out look right.  Then, re-run mkinitrd.

Once the new initrd has been created, I would check to make sure that
the DASD parameters that get imbedded in it are right: zcat
/boot/new.initrd.name > /tmp/initrd.nogz mount -o loop /tmp/initrd.nogz
/mnt cd /mnt Look at the linuxrc file to see what it's doing.  I don't
recall if the initrd has a modules.conf/modprobe.conf in /etc (/mnt/etc
at the moment) or not.  If it does, look in there.

If everything looks fine, cd out of /mnt, umount /mnt, and rm
/tmp/initrd.nogz.  You should be ready for your changeover to the new
storage unit.  If you IPL and things go horribly wrong, IPL off the old
device and try to fix what was wrong.

Note that if you have users or anyone else making changes after the
initial copy, you'll need to make those same changes to the new volumes.

Now, for the CentOS system, the same methodology will be used, except
for the file system labels.  Once the two disks have been copied, you'll
need to change the file system labels on the new disks.  Otherwise, when
you try to boot either the old system or the new one, you'll get
complaints about duplicate labels, and experience a whole lot of pain
(trust me on that one).

So, for each file system you have on your original disk, do: e2label
/dev/dasda1 e2label /dev/dasdb1

Note the label names.  Say they are "/" and "/usr" respectively.  Then
change them on the new file systems: e2label /dev/dasdc1 /new e2label
/dev/dadsd1 /usrnew

Once you mount /de

Re: Moving from ESS 800 to DS8100

[Feller, Paul]

 I don't know if you have access to a z/OS system, I did.  I had to move
my Linux DASD to a new DASD box.  I was able to take the Linux systems
down for a few hours and move the DASD from a z/OS system.  I did full
volume copies using a software package, but I think the same thing could
be done with DFDSS.

Paul Feller 
AIT Mainframe Technical Support 
[EMAIL PROTECTED] 
(319)-398-7824 



-Original Message-
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of
Henderson.Louis
Sent: Thursday, May 18, 2006 3:30 PM
To: LINUX-390@VM.MARIST.EDU
Subject: Moving from ESS 800 to DS8100


I have two zLINUX LPARS.  One is SLESS 9 and the other is CentOS 4.
We are migrating from an ESS 800 to DS8100.   All unit addresses for
DASD will change.  Network address will not.  Is there any documentation
on how to migrate to the new devices?  Each zLINUX system has two 3390
Mod 9 volumes.

Any experiences, pointers or documentation would be appreciated.

Louis E. Henderson
SharedServices - Mainframe  
 
 
 

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Re: Creating a second zVM 5.1: Spool issue

[Feller, Paul]

 What type of problems would you run into sharing the same SYSRES.  I
thought there was some "stuff" that was updated on the SYSRES that
reflected the state of VM. Ex: Was VM shutdown cleanly. I run two VM
lpars, each has its own SYSRES, PAGE and SPOOL.

Paul Feller 
AIT Mainframe Technical Support 
[EMAIL PROTECTED] 
(319)-398-7824 



-Original Message-
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of
Rich Smrcina
Sent: Wednesday, May 03, 2006 4:38 PM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Creating a second zVM 5.1: Spool issue


SPXTAPE will backup up the NSS and DCSS files.  The exact command is in
the installation guide, it is one of the last things you do during the
install (at least I do).

Nix, Robert P. wrote:
> I'm building two zVM systems which should, when complete, IPL from the

> same SYSRES. I'm getting ready to start the second image, and realized

> that I need the various DCSS and NSS segments and such to successfully

> run.
>
> Can I DDR the spool volume from system A to the spool volume of system

> B, and then do a force start on system B the first time it comes up? I

> know I'll pick up a bunch of normal spool files I don't want, but will

> I be able to pick up the saved segments?
>
> If this won't work, is there a way to back them up on system A and 
> restore them on system B which doesn't involve a tape drive?
>
> All help appreciated...
>
> --
> Bob Nix
> (out of the office; no fancy footer.)
>
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> For LINUX-390 subscribe / signoff / archive access instructions, send 
> email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or 
> visit http://www.marist.edu/htbin/wlvindex?LINUX-390
>

--
Rich Smrcina
VM Assist, Inc.
Main: (262)392-2026
Cell: (414)491-6001
Ans Service:  (360)715-2467
rich.smrcina at vmassist.com

Catch the WAVV!  http://www.wavv.org
WAVV 2007 - Green Bay, WI - May 18-22, 2007

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