DEF STORAGE v. AUTOLOG Linux Guest
In working with a product that uses DCSS (OMEGAMON for zVM and Linux) for passing information, I have run into an issue where my Linux guests won't start automatically after an IPL. It is my understanding that there are two ways to setup DCSS with Linux: 1. Create a memory hole and define it using the DEFINE STORAGE command, say, in the PROFILE EXEC. 2. Place the DCSS higher than the defined memory for the guest and use the Linux /etc/zipl.conf file to define a higher memory boundary as available. In order to have a Linux guest properly startup, am I forced to use option #2? When I go with option #1, the DEF STOR command does a reset that interrupts any following command in the PROFILE EXEC. Thanks much, David Schaub -- 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 The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If the reader of this message is not the intended recipient, you are hereby notified that your access is unauthorized, and any review, dissemination, distribution or copying of this message including any attachments is strictly prohibited. If you are not the intended recipient, please contact the sender and delete the material from any computer. -- 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: DEF STORAGE v. AUTOLOG Linux Guest
Rob van der Heij wrote: > On 8/28/07, Alan Altmark <[EMAIL PROTECTED]> wrote: > >> Your subject line says "DEF STORAGE v. AUTOLOG". You can provide the >> STORAGE option on XAUTOLOG if you want the virtual machine to start with a >> larger amount of memory. You can also combine the DEFINE STORAGE and IPL >> commands on a single line in PROFILE EXEC: >> call diag 8,"DEFINE STORAGE 128M" || '15'x || "IPL LINUX" > > If you want a virtual machine with a hole in it, the PROFILE EXEC is > the only option. Neither the XAUTOLOG command nor the directory seem > to support the CONFIG version of the command. > > There is a considerable cost for a Linux virtual machine to reach out > to a DCSS that is located very high above its head, but that is > probably not your biggest performance problem on the road ahead. Alan's CALL DIAG 8 above works like a champ. I did confirm (I think) that Rob's statement that using the XAUTOLOG w/options doesn't work with the DEFINE STORAGE CONFIG. I'm not entirely sure I got the statement right, though, being a novice at this. I tried both: XAUTOLOG LINUX DEFINE STORE CONFIG 0.256M 272M.256M which seemed to fail immediately, and: XAUTOLOG LINUX #DEFINE STORE CONFIG 0.256M 272M.256M which seemed to process but not give me my memory hole. In any case, the PROFILE EXEC statement above works with: CALL DIAG 8,"DEF STORAGE CONFIG 0.256M 272M.1008M" || '15'X || "IPL 100" Now all I have to do is learn more about "CALL DIAG..." :) Thanks much to all! David Schaub Unix Engineering -- 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 The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If the reader of this message is not the intended recipient, you are hereby notified that your access is unauthorized, and any review, dissemination, distribution or copying of this message including any attachments is strictly prohibited. If you are not the intended recipient, please contact the sender and delete the material from any computer. -- 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
Dynamically Decreasing Available Memory under Linux
Some time ago at an IBM Share I remember seeing a new technique to "balloon" kernel memory under a 2.6 kernel (SLES9 Update 3?) to make less memory available to all applications. The idea was to use the ballooning technique to lower available memory until swapping was induced. The problem is, I can't find any reference to it beyond Coorperative Memory Management (CMM1 and CMM2) and in all of my searching I can't find the specific commands/kernel modules that are used to execute a manual ballooning process. Any hints? Or am I completely looney? Thanks much, David Schaub Unix Engineering -- 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: anyone gotten Omegamon XE to work?
Yu Safin wrote: On 6/28/07, Brian France <[EMAIL PROTECTED]> wrote: Yes. Thos it's not configured yet how I'd like it to be. No time for me to pursue that. At 12:19 PM 6/28/2007, you wrote: Hi Listers. Just curious to know if anyone has gotten Omegamon XE to work. I've had the pleasure of installing OMEGAMON XE for zVM and Linux and OMEGAMON XE for Messaging. Both were joys, LOL! David Schaub Unix Engineering -- 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: IBM AIX toolkit help
PAUL WILLIAMSON wrote: > It doesn't surprise me this probably happened... > > #:/>rpm -qf /usr/lib/libc.a > file /usr/lib/libc.a is not owned by any package > > Oh well, I hate doing a nodeps rpm...any suggestions? > I know libc was "fixed" to comply with some linux standards, > but I can't seem to find out what libc.a is provided by... Under Suse it is provided by either: glibc-devel, or glibc-devel-32bit Hope this helps, David Schaub -- 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: zfcp and SLES 9 64-bit
Matt Gourley wrote: > I've run into an interesting issue with SLES 9 64-bit and zfcp and was > hoping someone here had an idea to fix it. I've checked the archives > but saw nothing matching this. > > I've got a 50G FCP LUN on device F100 attached to a VM named LINUX2. If > I IPL SLES on LINUX2, zfcp discovers 0xF100 after /etc/init.d runs > through all its startup scripts. I then need to log in as root to > manually mount /dev/sda1 to my mountpoint, which happens with no > trouble. Since this is a test environment, this is not a big deal, but > when we move into production, this kind of intervention is less than > optimal. (Call me crazy, but I'd like to avoid the 3am phone call to > mount a filesystem that should be mounted on boot. :) ) Any ideas? You might try a mkinitrd to refresh the /boot/initrd file. I had an issue a few weeks back that DASD was added to an image but not recognized until late in the bootup process. Running: cd /boot mkinitrd -k vmlinux-2.6.5-7.244-s390x.gz -i initrd-2.6.5-7.244-s390x zipl may fix the issue. Make sure the DASD that you are expecting is accurately identifed. Also note that your version may differ from mine. David -- 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 The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If the reader of this message is not the intended recipient, you are hereby notified that your access is unauthorized, and any review, dissemination, distribution or copying of this message including any attachments is strictly prohibited. If you are not the intended recipient, please contact the sender and delete the material from any computer. -- 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: Time Zone problem
> -Original Message- > From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of > Stahr, Lea > Sent: Monday, January 08, 2007 11:23 AM > To: LINUX-390@VM.MARIST.EDU > Subject: Time Zone problem > > I have what I think is a major Linux problem (not on s390 of course). I > have a large Red Hat 8 cluster. I have searched the Red Hat database and > found the Time Zone patch > https://rhn.redhat.com/errata/RHEA-2006-0745.html but it does not list a > RH8 version. Any ideas? I have the patch for SuSE already and am > installing that already on my 15 systems. I found the RHEL3 patch listed > also that I need. You might consider the following: (credit to http://www.twinsun.com/tz/tz-link.htm) 1. Pull the current tzdata file from ftp://elsie.nci.nih.gov/pub/ 2. Expand the tzdata2007a.tar.gz file into a directory 3. Run "zic" against each time zone file of interest, such as: zic northamerica zic africa zic australasia zic europe .. zic pacificnew 4. Steps 1-3 will update the Olson database at /usr/share/zoneinfo 5. Don't forget to update /etc/localtime with the correct *new* zone info file. Perhaps the best way to do this is the "setup" command in RH8 and select the correct time zone again. If not, then make a copy of the appropriate TZ file. For me, I did: cp /usr/share/zoneinfo/CST6CDT /etc/localtime I believe the above will make your old RH systems up-to-date at the OS level for the new time zone change. No guarantees and criticism welcome :) David Schaub -- 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 The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If the reader of this message is not the intended recipient, you are hereby notified that your access is unauthorized, and any review, dissemination, distribution or copying of this message including any attachments is strictly prohibited. If you are not the intended recipient, please contact the sender and delete the material from any computer. -- 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
