The mainframe is a z9 BC class machine. The disks are hosted by a DS6000 where each zLinux instance will have its own LCU (Logical Control Unit)
If I chose to only use zVM 5.4 could I run all 3 zLinux images in the single LPAR and use CP SHAREs to hard cap the Test and Sandbox images (for example, SHARE ABSOLUTE 12.5% LIMITHARD and SHARE ABSOLUTE 5.0% LIMITHARD as suggested in another reply)? Walter ____________________ Walter E. Wojcik [email protected] phone: (781) 301-2000 fax: (781) 301-2001 Mark Post <[email protected]> Sent by: Linux on 390 Port <[email protected]> 01/31/2010 01:26 PM Please respond to Linux on 390 Port <[email protected]> To [email protected] cc Subject Re: zLinux operating as a zVM guest host >>> On 1/30/2010 at 01:19 PM, Walter Wojcik <[email protected]> wrote: > I have an LPAR with 2 dedicated IFL processors. I would like to run 3 > instances of zLinux. > > I would like to have the following environment > > zVM 5.4 > / | \ > / | \ > / | \ > / | \ > / | \ > zVM zVM zVM > 5.3 5.4 5.4 > Build Test Sandbox > no cap cap cap > 25% of 10% of > 1 IFL 1 IFL You can do this, but I think you'll find that running Linux third-level will result in excruciatingly bad performance. I think you would be better off creating 2 LPARs, one running z/VM 5,3 and the other z/VM 5.4, sharing the IFLs between them, and using both LPAR weights and CP SHAREs to balance things out the way you want. You don't say what model of System z you're running, so I don't know if the additional overhead of running 2 z/VM instances will take up too much of your capacity or not. I would suspect that the additional people time z/VM systems management would be more significant than hardware resources, however. > If this is possible could you direct me to the correct documention to > accomplish my goals? Do you mean z/VM documentation, or Linux? Depending on the Linux distribution(s) you want to install, you could take a look at the Virtualization Cookbooks that Mike MacIsaac et. al. have on the IBM Redbooks web site: http://www.redbooks.ibm.com/cgi-bin/searchsite.cgi?query=virtualization+AND+cookbook There's one for SLES9, SLES10 SP2 (SP3 should not be any different), RHEL4, and RHEL5.2. 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 ForwardSourceID:NT00032586 NOTICE from Ab Initio: If received in error, please destroy and notify sender, and make no further use, disclosure, or distribution. This email (including attachments) may contain information subject to confidentiality obligations, and sender does not waive confidentiality or privilege. ---------------------------------------------------------------------- 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
