Re: Recovering Linux at Sungard?
We recovered 2 web servers, and NFS server, and an admin server in Dec 2003, and only difference is that we run under VM in production and recovered this way. The only heads up I would mention is that we used DFDSS full volume dumps taken from a z/OS system (sharing DASD for just that reason, as we don't gen the tapes on VM), and ran into an issue restoring them at Sungard where we had to specify CPVOL as format on the z/OS restores in order for the floor VM system to recogize the volumes. Not sure how FDR will address this if applicable... We seem to like the flexability of VM guests vs. LPAR, and with that the MDISK capability arguably offers some additional flexability/advantages (ie. disk snapshots at the CMS level using SDK storage arrays emulating 3390-9's). Good luck testing... :-) -- Bennie Hicks Network Systems Programmer State of North Carolina Office of Information Technology Services -- E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an authorized state official. -- James Melin wrote: I did exactly that last October. Our Contract with SunGard expired, and we have since changed vendors, but I can honestly say I was the FIRST sungard customer to recover Linux. Ours was native in an LPAR, and I had them create a VM directory that had all the devices I needed mapped to the address that z/IPL expected, as well as the OSA. So on that note, you are 100% on track. I used DFDSS CDL copies, as we don't have FDR, but I see no reason as to why this shouldn't work. I was able to IPL the system in that guest, and then using a PC at the Sungard facility, I was able to aim a web browser at the Linux hosted web server. "Peter E. Abresch Jr. - at Pepco" <[EMAIL PROTECTED] To com> [EMAIL PROTECTED] Sent by: Linux on cc 390 Port <[EMAIL PROTECTED] Subject IST.EDU> Recovering Linux at Sungard? 08/18/2004 08:42 AM Please respond to Linux on 390 Port <[EMAIL PROTECTED] IST.EDU> We have SuSE Linux SLES8 SP03 running in a native LPAR. In a couple of weeks we will be going to Sungard for Contingency Testing. Normally we recover our z/OS system under VM as a guest. We wish to recover our Linux system as a VM guest as well. Under the VM mapping, I made sure that the UCB address for the DASD and OSA match. My plan is simply to use FDR full volume restores to recover the volumes and to boot Linux. I then developed some scripts to redefine the network configs and such. When I run z/OS under VM, the VM userid is the processor id as defined in HCD. What will the VM userid be for the Linux guest or does it matter? Are there any gotchas when going from native LPAR to VM for Contingency Testing? Any and all suggestions are welcomed. Thanks as always. Peter -- 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 -- 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 -- 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
Re: z/VM commands to Linux guests?
If PROP is used, don't you have to have a console session in /etc/inittab such as "1:2345:respawn:/bin/bash" ? Are there alternatives to the root shell? How would say "1:2345:respawn:/sbin/mingetty console --noclear" compare and will it work with the PROP command structure? Other ideas about the best console implementation for a z/VM 3270 console deployment? Thanks Hall, Ken (IDS DCS PE) wrote: If your console (3270) is logged on to linux (has a command prompt instead of "login:"), you can use the VM msg mechanism to send commands to the linux guest. Two caveats: 1) The console has to be logged on. We solved this by using a patch to the mingetty program. 2) VM translates all commands to upper case, so whatever you run has to be ALL CAPS. We used this to run a "healthcheck" script at intervals, rather than having cron kick it off. It wasn't 100% reliable though, because if the console hangs up for some reason, you don't get any feedback, the msg is just absorbed by the guest. -Original Message- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] Behalf Of Rich Smrcina Sent: Tuesday, February 01, 2005 10:46 AM To: LINUX-390@VM.MARIST.EDU Subject: Re: [LINUX-390] z/VM commands to Linux guests? Rexec comes to mind, but there are security issues related to it's use. There are open source packages that can be configured fairly easily to do this. Big Brother or it's open source follow on 'Hobbit' is my personal favorite. Nagios is another one. The both provide easy to read web pages to check on the status of things, also pager and email notification is available. Peter E. Abresch Jr. - at Pepco wrote: We are writing a REXX exec to run under z/VM to verify the status of our Linux guests. The purpose of this script is to provide an easy mechanism for our operators to verify the health of the Linux guests. Is there a mechanism from z/VM to issue Linux commands to a Linux guest and capturing the output? I know we can go from Linux and issue z/VM commands. Thanks. Peter -- 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: (866)569-7378 Cell: (414)491-6001 [EMAIL PROTECTED] Catch the WAVV! http://www.wavv.org WAVV 2005 - Colorado Springs - May 20-24, 2005 -- 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 -- 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 -- 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
Re: VM time versus Linux Time
Hi Mike, our is happening by default, time coming from the Sysplex timer for the LPAR, then used by z/VM thus used by RHEL linux Mike Riggs wrote: Is there a way to have Linux guests running under VM pick up the 'clock' time from the CPU? Thanks. -- 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 -- [EMAIL PROTECTED] Network Systems Programmer State of North Carolina Office of Information Technology Services -- 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
Re: backup z/os dasd from z/linux
Not sure why you would want to backup z/OS stuff from Linux, but it surely works in reverse taking z/OS full volume dumps of z/VM 3390's that contain minidisks with linux file systems. We use this for disaster recovery, full volume dumps, then Tivoli TSM incremental restores (with the TSM server being z/OS tapes externally managed by TMS), meaning once the z/OS system is recovered our point in time server is available to handle Linux client recovery to an already booted image available after the full volume restore is done. Regards, Bennie >-- Original Message -- >Date: Wed, 29 Oct 2003 12:07:43 +0100 >Reply-To: Linux on 390 Port <[EMAIL PROTECTED]> >From: Rob van der Heij <[EMAIL PROTECTED]> >Subject: Re: backup z/os dasd from z/linux >To: [EMAIL PROTECTED] > > >On Wed, 2003-10-29 at 11:20, Sergey Korzhevsky wrote: > >> I've tried to backup z/os dasd (actually, get image of it) from linux but >> with no success. >> > >> So, is it possible? > >I don't think you can. The Linux dasd driver only handles disks that >have been formatted and allocated in a very specific way as dasdfmt and >fdasd do it. I failed to get the right people to listen to provide >relief for that. > >What I believe we need is a device driver that can read and write any >ECKD disk like a tape. For customers with a larger investment in Open >storage equipment this could be an attractive way to do full backup of >the z/VM volumes (though a restore would probably need Linux native to >get started). > >Rob
Re: bad magic number in super-block
Mark, what's the best method for "editing" if maintenance mode is invoked and your only console is a VM 3270 console that don't like "vi" ? Solution(s)?? Thanks, Bennie Post, Mark K wrote: While you're in "maintenance mode" you should be able to modify /etc/fstab to remove the entry for the volume that is failing. That will allow you to get your system up the rest of the way and have your normal set of tools available to look at/fix the problem. If you're concerned about losing data, use ext3, not ext2. The ext3 file system is a journaling one, and ext2 is not. Even if you're not concerned about losing data, still use ext3. The amount of time it takes to fsck a very large ext2 file system can get prohibitive, significantly delaying getting your system back up. Mark Post -Original Message- From: Ken Vance [mailto:[EMAIL PROTECTED] Sent: Thursday, January 08, 2004 5:39 AM To: [EMAIL PROTECTED] Subject: bad magic number in super-block Hi, I was installing an Oracle DB, and the system hung during one of the last steps, "clone database creation in progress". The system would no longer respond, so I had to force the linux image. Now the system will not restart due to a bad magic number on one of the logical volume packs. I tried to run the e2fsck to give it a new magic number, but it keeps giving the same message. Is there any way to recover the system, or do I have to go back to the last backup, and start again? Hopefully there is a way around this, since if we go into production with z/VM linux images, we will need a way to recover if the machine goes down without clean shutdowns on the images. Thanks, Ken Vance Amadeus Here is the console log: <-reiserfsck, 2001-> reiserfsprogs 3.x.0k-pre8 /dev/LVOL1/LV1: clean, 24551/1077120 files, 1131549/2150400 blocks fsck.ext2: Bad magic number in super-block while trying to open /dev/dasdc1 (null): The superblock could not be read or does not describe a correct ext2 filesystem. If the device is valid and it really contains an ext2 filesystem (and not swap or ufs or something else), then the superblock is corrupt, and you might try running e2fsck with an alternate superblock: e2fsck -b 8193 fsck.ext2 /dev/dasdc1 failed (status 8)! Run it manually! /dev/LVOL1/LV1: clean, 24551/1077120 files, 1131549/2150400 blocks /dev/LVOL1/LV1: clean, 24551/1077120 files, 1131549/2150400 blocks /dev/LVOL1/LV1: clean, 24551/1077120 files, 1131549/2150400 blocks /dev/LVOL1/LV1: clean, 24551/1077120 files, 1131549/2150400 blocks /dev/LVOL1/LV1: clean, 24551/1077120 files, 1131549/2150400 blocks ..failed fsck failed. Please repair manually and reboot. The root file system is currently mounted read-only. To remount it read-write do: bash# mount -n -o remount,rw / Attention: Only CONTROL-D will reboot the system in this maintanance mode. shutdown or reboot will not work. Give root password to login:
Re: POR instructions
We are running Linux images as VM guests vs. LPAR , and use an OPERATOR exec "SHUTDOWN EXEC" (that supercedes the VM SHUTDOWN command (that will force everything off right now) with the EXEC invocation) to send commands direct to linux images to do a shutdown (assuming the normal init.d scripts handle graceful shutdown of processes). Here is an example of what we doyou know, just one way! Hope it helps :-) /* */ parse arg $args "SM RSCS SHUTDOWN QUICK CP LOGOFF" "SM VMUTIL SHUTVMUTIL" /* */ "query LUWEBST0" if RC = 0 then do "LINUXCMD LUWEBST0 shutdown -h now" say "Shutting down LUWEBST0" say "VM is still shutting down, PLEASE WAIT" "CP SLEEP 30 SEC" end /* */ "query LUNFSW30" if RC = 0 then do "LINUXCMD LUNFSW30 shutdown -h now" say "Shutting down LUNFSW30" say "VM is still shutting down, PLEASE WAIT" "CP SLEEP 10 SEC" end "CP SLEEP 3 MIN " /* */ "CP SHUTDOWN" $args EXIT Ranga Nathan wrote: We did a POR on our mainframe and the Linux LPAR was a victim of unclean shutdown. Fortunately we were not affected too much. I had to do a 'Reset Normal' and then IPL the partition. Our IPLs and POR (optionally) happen at 00:00 on Sundays. Before I give Ops any instructions for shutdown, I want to find out what others are doing. TIA
Re: Hitachi DASD subsystem Replication - anyone?
Dennis, thanks for the reply. Yes, it would be very nice if the native FLASHCOPY command set would work, but we were told point blank from some HDS development team members on a conference call inquiring on just that yesterday, that it is not compatible. We have started to review the ShadowImage doc, and will most likely pursue this option. I noticed you indicated "full volume". I keep getting conflicting responses from HDS, but one technical guy said that it will work with mini-disks, but the conference call HDS team yesterday contradicted that. I suppose we are on our own again to find out. Anybody out there ever experimented with minidisk scenario? O'Brien, Dennis L wrote: Bennie, We use ShadowImage to replicate VM volumes on a USP 600. I don't know what differences there may be between a 600 and an 1100. ShadowImage makes full volume copies, using ICKDSF PPRC commands. We have no problem issuing the commands from VM. Hitachi also offers something called "compatible FlashCopy". It's extra cost, so we don't have it. If it's truly compatible, it should allow CP FLASHCOPY commands for both minidisks and full volumes. Dennis O'Brien Chelsea Clinton asked a returning US Soldier about fear. He said there were only three things he was afraid of: Osama, Obama and Yo Mama. -- Truckee Tahoe Times -Original Message- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Wednesday, September 05, 2007 07:19 To: LINUX-390@VM.MARIST.EDU Subject: Hitachi DASD subsystem Replication - anyone? Background: in a predominently zOS sysplex environment (2 z9's) and a fairly large Open Systems environment (Linux, Solaris, AIX, Windoz), a recent storage subsystem consolidation/upgrade decision was made to purchase an Hitachi USP1100 on a large tiered storage platform. Problem : with zVM and zLinux, while growing rapidly, it doesn't yet get the *attention* it needs considering resources and tools. Example, we have been running around 4 years on 2 IFL's on an old DASD subsystem nobody else wanted, STK V960, and now integrating into the Hitachi world the "methods" of storage replication was an after thought. The STK V960, while older an *unwanted* at least offered a "snapshot" feature with a VM interface for controlling replication, and Hitachi is telling us (short of experiment yourself with ICKDSF on a full volume level) none of their replication products have a native VM interface - specifically, we desire access at the minidisk level vs. full volume. We basically use full volume 3390 emulation, but reserve CYL 0 for unique volser, such that the "replication" involves zOS shared DASD full volume dumps of snapshot target volser's, and zVM uses internally for cloning guests (vs. DDR's). Question for LIST: Is anybody out there using a Hitachi USP subsystem for the zVM storage, and if so, how are you handling volume replication? Hitachi indicated that they had *heard* that some customers were running zOS as a guest machine under zVM, but this seems impossible to justify for us in that the reduced VM license cost for IFL would no longer be an option, plus the zOS licensing to boot. Any ideas or experiences out there would be appreciated for consideration. Thanks -- 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 -- 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 -- 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
Re: Adding dasd with Red Hat
FYI, RHEL modprobe.conf vs. modules.conf with zipl changed between v3 & v4 Bauer, Bobby (NIH/CIT) [E] wrote: Very close. The dasd= parm is in /etc/modprobe.conf, not /etc/zipl.conf. Brought the dasd online in /sys/bus/ccw/drivers/dasd-eckd and this gave me the device name to use in the dasdfmt command. New dasd online and I'm reading about LVM. Haven't had this much fun since I learned the IBM firewall technologies a couple of years ago! Bobby Bauer Center for Information Technology National Institutes of Health Bethesda, MD 20892-5628 301-594-7474 -Original Message- From: Mark Post [mailto:[EMAIL PROTECTED] Sent: Friday, August 31, 2007 12:34 PM To: LINUX-390@VM.MARIST.EDU Subject: Re: Adding dasd with Red Hat On Fri, Aug 31, 2007 at 12:23 PM, in message <[EMAIL PROTECTED]>, "Bauer, Bobby (NIH/CIT) [E]" <[EMAIL PROTECTED]> wrote: Thanks Mark. I also did find a section in the Red Hat manual on the topic. I missed it the first time. So, just for my own info, did it match what I said to do? Or was I off somewhere? Mark Post -- 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 -- 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 -- 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
WebsphereAS on zSeries performance?
Anybody out there running WAS on a single IFL? Interested in your thoughts/comments on performance, impacts of java compiles, etc. and whether or not a single IFL engine is enough..thanks! -- E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an authorized state official. -- -- 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
Re: WebsphereAS on zSeries performance?
I did fail to mention that we run a z900, single IFL with 4GB (3 central 1 xstore, while awaiting anoter 4G for central) on two CEC's for a redundant web hosting environment. I have about 15 guests (mostly apache test & prod servers with an NFS server to share the data to the other CEC IFL). I had been averaging about 22-26% CPU until two test WAS servers were built, and they got the rest (at times)! Complaining about start up time and java compile times. Basically running all limitsoft with relative shares at this point to keep prod (also quickdsp'ed) running along. Was just wondering what others may have noticed in the WAS environment, as my initial observation is that at least on the z900 that a single IFL will not make testing clients happy it seems. Yeah, we have not attempted to tune it yet and there are a couple good papers out there by IBM'ers, but think the CPU aspect is inevitably bad .I guess we'll see, huh?! Mike Riggs wrote: We currently support 6 LINUX guests (soon to be 8) with 3 of them running WAS, 3 running UDB. We do this with a z/890 and only 1 IFL and 3gig of memory. More memory is due in and we're still arguing the need for an additional IFL. Mike Riggs Supreme Court of Virginia (804) 786-7823 Rich Smrcina <[EMAIL PROTECTED] om>To Sent by: Linux on LINUX-390@VM.MARIST.EDU 390 Port cc <[EMAIL PROTECTED] IST.EDU> Subject Re: WebsphereAS on zSeries performance? 04/05/2005 03:16 PM Please respond to Linux on 390 Port <[EMAIL PROTECTED] IST.EDU> Going to a z890 IFL (from a MP3K IFL) was a major improvement. Startup time went from 15-20 minutes to 2 minutes. A single IFL of sufficient power is enough here, but that always depends upon your specific workload. The apps are fairly well tuned also (which helps anywhere). Bennie Hicks wrote: Anybody out there running WAS on a single IFL? Interested in your thoughts/comments on performance, impacts of java compiles, etc. and whether or not a single IFL engine is enough..thanks! -- E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an authorized state official. -- -- 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: (866)569-7378 rich.smrcina at vmassist.com Catch the WAVV! http://www.wavv.org WAVV 2005 - Colorado Springs - May 20-24, 2005 -- 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 -- 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 -- Bennie Hicks - 919-981-5107 Network Systems Programmer State of North Carolina Office of Information Technology Services -- E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an authorized state official. -- -- 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
Re: WebsphereAS on zSeries performance?
Currently running 3 test guest WAS machines, started out at 512M, but one was increased to 768M due to some "linux" paging. Again, no tuning has been done as of yet. Have more memory, but the CPU cycles alarmed me! Cortes, Marcy D. wrote: Our test/dev box is a single z900 IFL with 4.5GB (3.5 central 1 xstor). There are 49 servers running today there. 7 of these are WebSphere. (Note: prod is not on this - it's off on 2 z990s). We were doing pretty well on that with few complaints from the WebSphere testers/developers, also averaging in the low 20's for cpu until CVS came along... Now we average 90% (we will be moving that somewhere else - perhaps on of the z990s with crypto). But there does seem to be a big difference in the 900 vs the 990 - websphere starts up and shuts down way faster for one. How big are your WAS test server virtual machines? Marcy Cortes WFS Enterprise Hosting Services - VM & Linux This message may contain confidential and/or privileged information. If you are not the addressee or authorized to receive this for the addressee, you must not use, copy, disclose, or take any action based on this message or any information herein. If you have received this message in error, please advise the sender immediately by reply e-mail and delete this message. Thank you for your cooperation." -Original Message- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of Bennie Hicks Sent: Wednesday, April 06, 2005 10:44 To: LINUX-390@VM.MARIST.EDU Subject: Re: [LINUX-390] WebsphereAS on zSeries performance? I did fail to mention that we run a z900, single IFL with 4GB (3 central 1 xstore, while awaiting anoter 4G for central) on two CEC's for a redundant web hosting environment. I have about 15 guests (mostly apache test & prod servers with an NFS server to share the data to the other CEC IFL). I had been averaging about 22-26% CPU until two test WAS servers were built, and they got the rest (at times)! Complaining about start up time and java compile times. Basically running all limitsoft with relative shares at this point to keep prod (also quickdsp'ed) running along. Was just wondering what others may have noticed in the WAS environment, as my initial observation is that at least on the z900 that a single IFL will not make testing clients happy it seems. Yeah, we have not attempted to tune it yet and there are a couple good papers out there by IBM'ers, but think the CPU aspect is inevitably bad .I guess we'll see, huh?! Mike Riggs wrote: We currently support 6 LINUX guests (soon to be 8) with 3 of them running WAS, 3 running UDB. We do this with a z/890 and only 1 IFL and 3gig of memory. More memory is due in and we're still arguing the need for an additional IFL. Mike Riggs Supreme Court of Virginia (804) 786-7823 Rich Smrcina <[EMAIL PROTECTED] om>To Sent by: Linux on LINUX-390@VM.MARIST.EDU 390 Port cc <[EMAIL PROTECTED] IST.EDU> Subject Re: WebsphereAS on zSeries performance? 04/05/2005 03:16 PM Please respond to Linux on 390 Port <[EMAIL PROTECTED] IST.EDU> Going to a z890 IFL (from a MP3K IFL) was a major improvement. Startup time went from 15-20 minutes to 2 minutes. A single IFL of sufficient power is enough here, but that always depends upon your specific workload. The apps are fairly well tuned also (which helps anywhere). Bennie Hicks wrote: Anybody out there running WAS on a single IFL? Interested in your thoughts/comments on performance, impacts of java compiles, etc. and whether or not a single IFL engine is enough..thanks! -- E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an authorized state official. -- -- 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: (866)569-7378 rich.smrcina at vmassist.com Catch the WAVV! http://www.wavv.org WAVV 2005 - Colorado Springs - May 20-24, 2005 -- 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
Patchlink vs. RHN up2date?
Anybody out there using or have tested Patchlink to patch RHEL v3/4 systems (intel, s390)? Results, problems, comments, recommendations? -- 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
Re: I want to use the Interface(eth0 running on z/VM V5) as MTU 9000.
the generic settings for all are in /etc/sysconfig/network where individual overrides are in /etc/sysconfig/network-scripts/ifcfg-whatever, which can be different. Hope that helps. mainframe_s390 wrote: >Should I change the file >/etc/sysconfig/network/ifcfg-qeth-bus-ccw-0.0. only? > >The Interface connects to VSWITCH. >Is there the other files should I change?? > >Please teach me again. > >Thank you. >- >K.M. > >__ >Save the earth >http://pr.mail.yahoo.co.jp/ondanka/ > >-- >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 > > -- 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
Re: TSM
Just curious, as we run the TSM server on zOS also, why you are considering moving it? Advantages, problems, etc.? Brad Brewer wrote: None, we are currently running it under z/OS, but were thinking of moving it to zLinux. Brad Brewer Humana Inc. Technical Services System Software (502)580-3086 -- 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
Re: VSWITCH woes
John/anybody?, Regarding the "ARP=no", would this require anything on an ASv3 machine or is it only for ASv4? Thanks, Bennie John P Taylor wrote: Alan, that's interesting, I tested the scenario of "one host not being able to ping another host in the same vswitch" and found that tcpdump with the NIC's in promiscuous mode seem to show the "echo requests going out and the echo requests coming back, but ping itself claims 100% ping failure. As you suggest I'll see if I can raise a PMR. As an aside, I've had it pointed-out to me that the way to get the RHEL4 host talking correctly with the vswitch is to include "ARP=no" in "/etc/sysconfig/network-scripts/ifcfg-eth0". -- 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
Re: Netbackup Client
in my opinion, there are significant advantages staying within the mainframe (hipersockets, zOS tape access & management, etc.). Our zLinux environment is using full volume dumps and TSM incrementals, while our "open systems" (yes all flavors including blade linux) use Netbackup, and it's one interesting experience after another watching them at disaster recovery exercises! my $.02.. Bennie, State of NC OITS Smith, Ann (ISD, IT) wrote: Our storage area has asked us to convert from backing up our linux filesystems using TSM on zOS to using Veritas Netbackup. Are other folks using Netbackup? They have not provided us with the client yet. I hope Veritas provides rpm files and not a tar file. * This communication, including attachments, is for the exclusive use of addressee and may contain proprietary, confidential and/or privileged information. If you are not the intended recipient, any use, copying, disclosure, dissemination or distribution is strictly prohibited. If you are not the intended recipient, please notify the sender immediately by return e-mail, delete this communication and destroy all copies. * -- 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 -- 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
Re: What configurations are people using for Disaster Recovery for Linux under z/VM
Just curious, since you are talking DR and I assume hotsite. Are you IPL'ing your VM system on that hardware directly, or running it second level under the hotsite floor system (don't know why you would do that just speculating...)??? Alan Altmark wrote: On Thursday, 05/04/2006 at 02:19 EST, James Melin <[EMAIL PROTECTED]> wrote: I just want to reconcile what the People here are saying with what the folk on the list say regarding what constitutes a 3rd level guest I'm being told by our head sysprog AND someone else with considerably more VM experience (he's the new guy) that in Basic mode, the DR VM system is first Level, our VM is second level and therefore any guests running under OUR VM are second level. It sounds to me like people here on the are saying that the DR VM system is first level, OUR VM system is second level, and the Linux Guests running under our VM under the DR vendor VM are in fact executing third level, and hitting the SIE not in hardware problem. Which is correct? LOL. It just depends on training and local custom. Some people use the "level" to describe levels of virtualization. There is "1st-level SIE" (SIE1) and "2nd-level SIE" (SIE2), so some say that any operating system which runs under the ausipices of SIE2 is a "2nd-level guest". But I would say the majority would use "3rd level" to describe the guests of a 2nd level z/VM system. In Basic mode, 1st level CP (CP1) uses SIE1 to dispatch the the 2nd level CP (CP2), which uses SIE2 to run your 3rd-level guest (Guest3). Everything is wonderful. In LPAR mode, LPAR uses SIE1 to dispatch CP1, which uses SIE2 to dispatch CP2, leaving leaves none for Guest3. This means that when CP2 issues the SIE instruction, it will cause a SIE2 break on CP1. That, in turn, causes CP1 to construct a SIE descriptor, converting CP2's view of Guest3 to that viewed by CP1, or to simulate whatever needs to be simulated. This process is called "Virtual SIE" (VSIE). The itty bitty time slices and possibly small amount of resident guest memory in CP1 real memory means that VSIE doesn't perform very well. Are we having fun yet? Alan Altmark z/VM Development IBM Endicott -- 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 -- 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
Re: /proc/qeth for VSwitch
Rob, eth0 is vSwitch & hsi0 hipersocket GLAN [EMAIL PROTECTED] ~]$ ifconfig eth0 Link encap:Ethernet HWaddr 02:00:00:00:00:0C inet addr:nnn.n.nn.30 Bcast:nnn.n.nn.255 Mask:255.255.255.0 inet6 addr: fe80::200:0:100:c/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1492 Metric:1 RX packets:11589 errors:0 dropped:0 overruns:0 frame:0 TX packets:11986 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:1792248 (1.7 MiB) TX bytes:2240932 (2.1 MiB) hsi0 Link encap:Ethernet HWaddr 00:00:00:00:00:00 inet addr:10.10.nn.30 Bcast:10.10.nn.127 Mask:255.255.255.128 inet6 addr: fe80::ff:fe00:0/64 Scope:Link UP BROADCAST RUNNING NOARP MULTICAST MTU:8192 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:3 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 b) TX bytes:264 (264.0 b) [EMAIL PROTECTED] ~]$ cat /proc/qeth devicesCHPID interface cardtype port chksum prio-q'ing rtr4 rtr6 fsz cnt -- - -- -- -- -- - - 0.0.0500/0.0.0501/0.0.0502 x29 eth0 GuestLAN QDIO 0sw always_q_2 no no 64k 16 0.0.0600/0.0.0601/0.0.0602 x2A hsi0 GuestLAN Hiper 0sw always_q_2 no no 16k 16 q vswitch SWTCHTTZ detail VSWITCH SYSTEM SWTCHTTZ Type: VSWITCH Connected: 5Maxconn: INFINITE PERSISTENT RESTRICTEDNONROUTER Accounting: OFF VLAN Unaware State: Ready IPTimeout: 5 QueueStorage: 8 Portname: OSDTTZ2RDEV: 3140 Controller: VSWITCH1 VDEV: 3140 Portname: OSDTTZ1RDEV: 3170 Controller: VSWITCH2 VDEV: 3170 BACKUP VSWITCH Connection: RX Packets: 28316206 Discarded: 1936065Errors: 0 TX Packets: 23133704 Discarded: 0 Errors: 0 RX Bytes: 1986154524 TX Bytes: 5025169565 Device: 3142 Unit: 002 Role: DATA Adapter Owner: LUITSRHN NIC: 0500 Name: UNASSIGNED RX Packets: 11645 Discarded: 0 Errors: 0 TX Packets: 12040 Discarded: 0 Errors: 0 RX Bytes: 1796048 TX Bytes: 1863418 Device: 0502 Unit: 002 Role: DATA Options: Broadcast Multicast IPv6 IPv4 VLAN Unicast IP Addresses: nnn.n.nn.30 MAC: 02-00-00-00-00-0C FE80::200:0:100:CMAC: 02-00-00-00-00-0C Local Multicast IP Addresses: 224.0.0.1MAC: 01-00-5E-00-00-01 FF02::1 MAC: 33-33-00-00-00-01 Local FF02::1:FF00:C MAC: 33-33-FF-00-00-0C Local Rob Schwartz wrote: Hey everyone... I'm trying to connect to VSWITCH and can't seem to get it working. I have a VSWITCH defined as type ethernet, LAN unaware. My virtual server NIC uses vaddrs 3f04-3f06 and has been granted access to the VSWITCH. The VSWITCH looks like; q vswitch boswitch details VSWITCH SYSTEM BOSWITCH Type: VSWITCH Connected: 1Maxconn: INFINITE PERSISTENT RESTRICTEDETHERNET Accounting: OFF VLAN Unaware State: Ready QueueStorage: 8 Portname: PORT0 RDEV: 0E86 Controller: TCPIPVDEV: 0E86 VSWITCH Connection: RX Packets: 0 Discarded: 0 Errors: 0 TX Packets: 0 Discarded: 0 Errors: 0 RX Bytes: 0TX Bytes: 0 Device: 0E88 Unit: 002 Role: DATA Adapter Owner: LTROBNIC: 3F04 Name: UNASSIGNED RX Packets: 0 Discarded: 0 Errors: 0 TX Packets: 0 Discarded: 0 Errors: 0 RX Bytes: 0TX Bytes: 0 Device: 3F06 Unit: 002 Role: DATA After starting the virtual server I get "qeth-bus-ccw-0.0.3f04 no interface found". When I look at /proc/qeth it shows the following; devicesCHPID interface cardtype port chksum prio-q'ing rtr4 rtr6 fsz cnt -- - -- -- -- -- - - 0.0.3f00/0.0.3f01/0.0.3f02 x09 hsi0 GuestLAN Hiper 0sw always_q_2 no no 16k 16 0.0.3f04/0.0.3f05/0.0.3f06 x0A GuestLAN QDIO 0 +++ LAN OFFLINE +++ Devices 3f00-02 are successfully connecting to a guest LAN. I can use this interface to ssh to the virtual server. I would like to define a second network interface. I *think* I have my VSWITCH defined properly but it looks like Linux sees these devices (3f04-06) as cardtype "Guest LAN". Could someone using VSWITCH's please cat /proc/qeth and send me the output. I'm wondering if the card type will be something like "VSwitch LAN". Thanks, Rob --
Crypto Express2 for VM based RHEL - getting started?
Looking for startup information, documentation links, or user experiences implementing use of Crypto Express2 engines for VM based RHEL systems (predominently SSL Apache web servers). How involved is this, and looking for some good get started advice? Thanks We just recently upgraded a two IBM mainframes from z900 2064-110's to z9 2094-s18 model 506's. Each CPC has a single IFL running VM 5.1, with a mix of RHEL v3 & v4 linux guests. -- [EMAIL PROTECTED] ITS/CS Network Systems Programmer State of North Carolina Office of Information Technology Services - E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an authorized state official. - -- 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
Re: How to boot into single user mode ?
*If* you already get presented with the default menu now that *waits* then takes the default, you can issue "#cp vi vmsg 0 1" after the IPL cuaa CLEAR is done from the console, and runlevel 1 is booted. As an option, this can also be coded in the Guest machines PROFILE EXEC to be a PFkey..something like: set pf1 immed #cp vi vmsg 0 1 say " " say "To IPL Linux image, enter 'IPL 201 CLEAR'" say " " say " => then SINGLE USER mode is PF1 or '#cp vi vmsg 0 1'" say " " exit Bernard Wu wrote: Hi List, How does one boot into single user mode ? I startup a 3270 VM session, and it asks me : " Do you want to IPL Linux from DASD 100? y/n " If I reply "y" , it starts ipl'ing the Linux guest. If I reply "n", I get dropped into a CMS session. What do I have to do to ipl into single user mode ? TIA Bernie Wu [EMAIL PROTECTED] The information contained in this e-mail message is intended only for the personal and confidential use of the recipient(s) named above. This message may be an attorney-client communication and/or work product and as such is privileged and confidential. If the reader of this message is not the intended recipient or an agent responsible for delivering it to the intended recipient, you are hereby notified that you have received this document in error and that any review, dissemination, distribution, or copying of this message is strictly prohibited. If you have received this communication in error, please notify us immediately by e-mail, and delete the original message. -- 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 -- [EMAIL PROTECTED] (919) 981-5107 ITS/CS Network Systems Programmer State of North Carolina Office of Information Technology Services ITS Customer Support Center: (919) 754-6000 -or- (800) 722-3946 - E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an authorized state official. - -- 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
Re: 1 480 MIP IFL CPU = ?
... Religious argument at best! :-( but the better answer would be go back through the Archives of this list, as many many opinions have been offered on the subject that IMHO simply imply "it depends", as it does. Craig Otway wrote: Can anyone point me to a chart or share statistics that show that each 480 MIP IFL CPU on a 2096 equals: x number of x.x GHz Intel CPUs or x number of pSeries CPUs? Swags or rules of thumb are ok too. Thanks! -- 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 -- [EMAIL PROTECTED] ITS/CS Network Systems Programmer State of North Carolina Office of Information Technology Services - E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an authorized state official. - -- 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
zVM 5.1 VDISK implementation
All, looking for comments (situation below) on VDISK implementation for linux swap. After having read all the recent posts on use of VDISK (including layers) which we intend to do, mainly interested in timing of same? 1. "proceed vs. wait" with implementing VDISK swap space for RHEL guests running on z/VM Version 5 Release 1.0, Service Level 0601 (64-bit). We have had zVM5.2 on standby awaiting a DASD subsystem replacement (now zVM5.3 is available :-) ) & no space for 2nd level installation/testing. Current LPAR's (on redundant z9's) are not currently storage constrained - 1st at 40% of 12G & 2nd at 60% of 8G (each defined less 1G as XSTORE). Note: aware of many Conference Presentations indicating much better memory management (ie. above 2G line) with 5.2 or above; hence wanting advise/opinions on proceeding at 5.1 vs. waiting. We had hoped to have the DASD subsystem upgraded in Jan, but still waiting - and best guess would be late April early May before VM upgrade could be done, so wondering if I would have any negative affects of proceeding with VDISK swap areas at 5.1? Opinions please! Thanks -- [EMAIL PROTECTED] ITS/CS Network Systems Programmer State of North Carolina Office of Information Technology Services - E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an authorized state official. - -- 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
Re: zVM 5.1 VDISK implementation
would be nice if *new* questions could be started in *new* threads.. Levy, Alan wrote: How would you define a 1G swap space with vdisk ? I have about 30 linux servers, each with about 1G swap on physical dasd. Can I use Vdisk for each of them ? Can a 3G system handle 30G (or more) of vdisk ? What would be the system limit ? User limit ? I am a little confused about this. Can anyone point me to some simple documentation ? It would be nice to reclaim the 1G of swap dasd space for the user to use. Thanks -Original Message- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of Tom Duerbusch Sent: Monday, February 26, 2007 3:29 PM To: LINUX-390@VM.MARIST.EDU Subject: Re: zVM 5.1 VDISK implementation Don't wait. If you are not storage constrained then vdisk for swap should almost never be a problem. My complaint was about vdisk in a storage constrained system, being abused by some memory hog process. How much vdisk? That's a tuning/monitoring process. I use 3 vdisks, 16 MB, 32 MB and 64 MB with different priorities. I think that is overkill for some of my machines, but hasn't been insufficient for any of them (yet). But my point has been, if you define it, expect that it may be totally used at some point (in my case, increasing the working set size by 112 MB, had a major impact on my production machines). I was in a 1 GB lpar, that was memory constrained, so a bump of 10% in working set size, was an issue. VS having a 16 MB vdisk, and a 3390 pack for second level swap. We have only been discussing a very minor set of circumstances, that, I agree, we shouldn't be in anyway. But, when in the trenches, you have to deal with, what you have. Think about, but don't worry about the 2 GB storage relief in 5.2. The storage problem was mostly in large, heavy I/O shops, as all I/O had to be done below the 2 GB line. With 5.2, that is no longer the case. Now, if your Linux images are going to be large, such as 4 GB Oracle, or DB2/UDB, and they become heavy I/O contenders, then you need to think/rethink/watch out, for that problem. Tom Duerbusch THD Consulting [EMAIL PROTECTED] 2/26/2007 1:51 PM >>> All, looking for comments (situation below) on VDISK implementation for linux swap. After having read all the recent posts on use of VDISK (including layers) which we intend to do, mainly interested in timing of same? 1. "proceed vs. wait" with implementing VDISK swap space for RHEL guests running on z/VM Version 5 Release 1.0, Service Level 0601 (64-bit). We have had zVM5.2 on standby awaiting a DASD subsystem replacement (now zVM5.3 is available :-) ) & no space for 2nd level installation/testing. Current LPAR's (on redundant z9's) are not currently storage constrained - 1st at 40% of 12G & 2nd at 60% of 8G (each defined less 1G as XSTORE). Note: aware of many Conference Presentations indicating much better memory management (ie. above 2G line) with 5.2 or above; hence wanting advise/opinions on proceeding at 5.1 vs. waiting. We had hoped to have the DASD subsystem upgraded in Jan, but still waiting - and best guess would be late April early May before VM upgrade could be done, so wondering if I would have any negative affects of proceeding with VDISK swap areas at 5.1? Opinions please! Thanks -- [EMAIL PROTECTED] ITS/CS Network Systems Programmer State of North Carolina Office of Information Technology Services - E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an authorized state official. - -- 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 -- 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 -- 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 -- 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
Re: SLES 10 YaST Network Changes
I'm not a SLES or YaST user, but in RHEL I have come behind folks that set the hostname/domain in kernel parms (/etc/sysctl.conf). Probably not related, just mentioning what I have seen before that got me on some manual clones. Mark Post wrote: On Wed, Feb 28, 2007 at 12:14 PM, in message <[EMAIL PROTECTED]>, Dave Keeton <[EMAIL PROTECTED]> wrote: -snip- Has anyone else seen this? Does anyone know where SuSE stores its hostname variable (other than /etc/hostname which doesn't appear to be read by YaST). I can use the "hostname - v " and change it on the fly, but it doesn't stick after reboot. I haven't seen it myself. The hostname is stored in /etc/HOSTNAME and /etc/hosts. Mark Post -- 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 -- [EMAIL PROTECTED] (919) 981-5107 ITS/CS Network Systems Programmer State of North Carolina Office of Information Technology Services ITS Customer Support Center: (919) 754-6000 -or- (800) 722-3946 - E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an authorized state official. - -- 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
