We have been asked to make a zLinux server running under z/VM 100%
availability, except for POR (power on reset). We have 2 z/VM lpars, a test and
a production but as far as I know, z/VM doesn't have a sysplex takeover
mechanism.
I can move the server from one lpar to the other easy enough but
Your application must have the feature to get the availablilty of 100%.
(Application-Cluster) The OS alone has not this feature.
Kind regards,
Alexander Riedel
From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On Behalf
Of Bauer, Bobby
Hi
I am trying to find out if there is a utility in z/Linux in my case RHEL
5.2 that will allow me to copy a z/Linux formatted disk to another disk.
Also do you know if DDR cares rather there is a VTOC on a volume if it
is used to backup the volume without a VTOC?
Thank You,
I use dd
dd if=/dev/... of=/dev/...
John McKown
Systems Engineer IV
IT
Administrative Services Group
HealthMarkets(r)
9151 Boulevard 26 * N. Richland Hills * TX 76010
(817) 255-3225 phone * (817)-691-6183 cell
john.mck...@healthmarkets.com * www.HealthMarkets.com
Confidentiality Notice: This
In short, you don't. 100% availability is extreemly expensive to
achieve. Be very careful what you promise to the business. The bosses may
have said 100% without understanding the cost associated with that,
meanwhile 99.99% would actually have been fine, and affordable.
On Aug 16, 2010 7:34
DDR won't care. It will take the VTOC with it.
On 08/16/2010 08:29 AM, Martin, Terry R. (CMS/CTR) (CTR) wrote:
Hi
I am trying to find out if there is a utility in z/Linux in my case RHEL 5.2 that will
allow me to copy a z/Linux formatted disk to another disk.
Also do you know if DDR
DDR doesn't care about VTOCs or anything. It simply copies whatever is
there. A very useful trait in many cases.
Peter
-Original Message-
From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On
Behalf Of Martin, Terry R. (CMS/CTR) (CTR)
Sent: August 16, 2010 09:30
On Monday, 08/16/2010 at 07:27 EDT, Bauer, Bobby (NIH/CIT) [E]
baue...@mail.nih.gov wrote:
We have been asked to make a zLinux server running under z/VM 100%
availability, except for POR (power on reset). We have 2 z/VM lpars, a
test and
a production but as far as I know, z/VM doesn?t have
I misspoke, it is just the application management is interested in, not the
server. This server has only this one application running on it.
To me this is a silly request but it's what management asked about. I think I
have enough words to convince them that the 99.99% availability will be OK,
On 08/16/2010 09:05 AM, Alan Altmark wrote:
[snip of some excellent points made by Alan]
What IBM *has* announced in a Statement of Direction is that in the
future z/VM will have the ability to move a running virtual machine
from one LPAR to another. This improves the availability of the
Hi
Further explanation. Here is my dilemma in a nut shell:
I have a z/Linux volume on a guest that does not have a z/OS VTOC. We typically
use DFDSS on z/OS to back the z/Linux disks up and restore them at out DR site.
Since this particular guest does not have z VTOC DFDSS cannot open
What about Bacula? Dr Boyes could speak could speak on this point better
And you always want to shutdown the guest to get a good backup
mace
From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On
Behalf Of Martin, Terry R. (CMS/CTR) (CTR)
If you have flashcopy on your dasd that may be your best option. Use the
vmcp z/Linux module to invoke the FLASHCOPY command.
Hans
-Original Message-
From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On
Behalf Of Rich Smrcina
Sent: August-16-10 9:37 AM
To:
Flashcopy does not account for any disk buffers linux still has cached and
unwritten. It will mitigate the situation where the disk is changing while
it is being backed up.
All in all, if you're talking about running images, full-pack backups are
basically worthless.
--
Robert P. Nix
Wouldn't doing a dd in the running Linux guest to a separate disk, then
backing up that disk result in a good backup? Assuming that the application has
synced its data, of course.
--
John McKown
Systems Engineer IV
IT
Administrative Services Group
HealthMarkets(r)
9151 Boulevard 26 * N.
On 8/16/10 10:37 AM, Macioce, Larry larry.maci...@com.state.oh.us wrote:
What about Bacula? Dr Boyes could speak could speak on this point better
And you always want to shutdown the guest to get a good backup
Long term, setting up Bacula would probably be a Good Thing, but probably
doesn't
On 8/16/10 10:49 AM, McKown, John john.mck...@healthmarkets.com wrote:
Wouldn't doing a dd in the running Linux guest to a separate disk, then
backing up that disk result in a good backup? Assuming that the application
has synced its data, of course.
If you unmount the filesystem you dumped
There's a race condition that the dd can't account for. Think of a
transaction in a database, where several records are part of a transaction.
Each record gets written in turn, and then the transaction is committed.
What happens when the dd goes through that section of disk when only two of
the
On Monday, 08/16/2010 at 10:47 EDT, RPN01 nix.rob...@mayo.edu wrote:
Flashcopy does not account for any disk buffers linux still has cached
and
unwritten. It will mitigate the situation where the disk is changing
while
it is being backed up.
All in all, if you're talking about running
Thanks to all for the information this will help prepare backup and
recovery processes moving forward:
First, we do not count on Full pack backups for our restores normally we
use FDRUPSTREAM to backup the guests file systems on a daily and weekly
basis, however the guests are still running when
Hi Terry -
As a couple other folks have mentioned, dd will work to do that, even if you
dump the image out to a tape or a disk file. However, you will need to make
sure that no changes are taking place on the disk you are dumping while you are
dumping it, which leads back to the same issue as
On Monday, 08/16/2010 at 10:58 EDT, Dave Jones d...@vsoft-software.com
wrote:
Note that the ability to move a running virtual machine as stated in the
Statement of Direction that Alan mentions has two caveats:
1) the guest virtual machine to be moved must be running Linux, so no
moving z/OS,
Thanks for the clarification, Alan, about being able to move guests from
one CEC to another.that removes a restriction on a layout I'm now
doing.
And I assume IBM will be providing us with a list of the non-movable
z/VM services, then?
On 08/16/2010 10:16 AM, Alan Altmark wrote:
On
Doesn't SEND CP OPERATOR ... or FOR OPERATOR ... constitute having the
operator do it? Neither of those is an acceptable solution, at least not here.
Regards,
Richard Schuh
From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On Behalf
Of
Yes indeed, but you can replace OPERATOR by any other user that has the
right RSCS privs. I hoped that was obvious.
2010/8/16 Schuh, Richard rsc...@visa.com
Doesn't SEND CP OPERATOR ... or FOR OPERATOR ... constitute having
the operator do it? Neither of those is an acceptable solution, at
It is obvious that substituting some other authorized userid for OPERATOR would
work. At least with the SEND CP, the other id would have to be logged on. I do
not know about FOR, it does not seem to be available on the system. (FOR is
interpreted as an abbreviation of FORWARD).
Regards,
FOR is new since z/VM 5.3 IIRC. As opposed to CP SEND, it sends the CP
response back to the command issuer.
2010/8/16 Schuh, Richard rsc...@visa.com
It is obvious that substituting some other authorized userid for OPERATOR
would work. At least with the SEND CP, the other id would have to be
On 8/16/10 11:10 AM, Martin, Terry R. (CMS/CTR) (CTR)
terry.mar...@cms.hhs.gov wrote:
First, we do not count on Full pack backups for our restores normally we
use FDRUPSTREAM to backup the guests file systems on a daily and weekly
basis, however the guests are still running when this is done
It depends too on how your procedures define operator. Do they refer to
the OPERATOR userid or the supposedly human console operator?
--
Mike Harding
z/VM System Support
mhard...@us.ibm.com
mike.b.hard...@kp.org
mikehard...@mindless.com
(925) 926-3179 (w)
(925) 323-2070 (c)
IM: VMBearDad (AIM),
The OPERATOR id is used by the operators. Any commands executed on it should
come from them, else, accountability flies out the window. If a mistake is made
from it, I do not want it to be one that I caused by my somewhat unreliable
typing skills. Neither does my management want that to happen.
Hi David,
Thanks I agree and I have already started working on getting those packs
fixed up.
Thank You,
Terry Martin
Lockheed Martin - Citic
z/OS and z/VM Performance Tuning and Operating Systems Support
Office - 443 348-2102
Cell - 443 632-4191
-Original Message-
From: The IBM z/VM
On Monday, 08/16/2010 at 12:02 EDT, Schuh, Richard rsc...@visa.com
wrote:
It is obvious that substituting some other authorized userid for
OPERATOR
would work. At least with the SEND CP, the other id would have to be
logged
on. I do not know about FOR, it does not seem to be available on
Exactly Alan. What I sent as solution is a bypass: fix things up until they
can get restarted. Countless are clients that only know about MAINT. First
thing I recommend is that the sysprogs use their own userid as much as
possible (after updating the authority config files).
Good to hear there
My bad on the FOR. When I looked at the HELP, I was on CMS22 checking out
something. The FOR command says that it is executed on the target id, so using
it on the OPERATOR id would be stepping on toes or crossing lines. The problem
was not the ability to issue the START command; I have
On Monday, 08/16/2010 at 01:39 EDT, Kris Buelens kris.buel...@gmail.com
wrote:
Exactly Alan. What I sent as solution is a bypass: fix things up until
they
can get restarted. Countless are clients that only know about MAINT.
First
thing I recommend is that the sysprogs use their own
On Monday, 08/16/2010 at 11:38 EDT, Dave Jones d...@vsoft-software.com
wrote:
Thanks for the clarification, Alan, about being able to move guests from
one CEC to another.that removes a restriction on a layout I'm now
doing.
And I assume IBM will be providing us with a list of the
Hi, I am looking for 3 customers willing to be contacted by a potential
customer in Canada specifically for IBM Operations Manager for zVM. This
customer is looking for an automation solution to manage zVM with zLinux
virtual machines. Please contact me directly by email at bla...@ca.ibm.c
om
Hello List,
Years ago, We wrote a lot of Assembler programs and unfortunattely lost all of
them.
Now, We try write a sample program, and need know, if someone, have a FSWRITE
sample program, ans how get the date of the system.
My program is something like this :
CPUVM1 CSECT
Attached is a sample program that does both. It is quite old, and I
don't know if it still works, but there is no particular reason why it
shouldn't.
Peter
-Original Message-
From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On
Behalf Of Sergio Lima
Sent: August
Tracy Dean is the best source for that information.
Mac Holloway
OMEGAMON for z/VM
OMEGAMON for Mainframe Networks
mholl...@us.ibm.com
919-224-1855 T/L 687-1855
From:
Jocelyn Blais bla...@ca.ibm.com
To:
IBMVM@LISTSERV.UARK.EDU
Date:
08/16/2010 03:41 PM
Subject:
Looking for customer reference
Looking at the program I think your displacement on the MVC is wrong.
FCBI+16(8) might ought to be FCBI+9(8). But since you already have the FSCBD in
place you would do better to use it
LA FSCBD,R8
LA R8,FSCBI
MVC FSCBFN,=CL8'1608'
Getting date and time:
I'm trying to use HCD in VM for the first time to write an IOCDS on at
z10. I have:
- Created a skeleton file
- Loaded the IOCP source into the skeleton file with CBDSMIGR
- Created a production IODF file
- Created a IOCDS input file by using:
CBDSIOCP IODF02 PRODIODF A ERIE2098
- Now trying
We brought up z/OS 1.4 under z/VM on our z10 after numerous
experts told us it wouldn't work. I've become quite skeptical
of authoritative-sounding claims that certain hardware/software
combination simply won't work. Too many people are CYA and,
if it hasn't been tested, they say it won't
On Monday, 08/16/2010 at 03:54 EDT, Sergio Lima sergiovm...@hotmail.com
wrote:
Hello List,
Years ago, We wrote a lot of Assembler programs and unfortunattely lost
all of
them.
Now, We try write a sample program, and need know, if someone, have a
FSWRITE
sample program, ans how get
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