Could you set up a cron job / set of cron jobs to go out and wake things up in the morning before things actually start to get busy? Take the edge off starting things up?
-- Robert P. Nix Mayo Foundation .~. RO-OC-1-18 200 First Street SW /V\ 507-284-0844 Rochester, MN 55905 /( )\ ----- ^^-^^ "In theory, theory and practice are the same, but in practice, theory and practice are different." On 3/17/11 2:04 PM, "Mark Wheeler" <mwheele...@hotmail.com> wrote: > Yes to both. > > The fundamental problem is one of expectations. One of z/VM's strengths is > that it virtualizes storage. While that means storage can be overcommitted, it > also means that unused storage gets paged out. Alas, some of that storage > needs to get paged back in when the server awakens. Unfortunately, the > customer expects that to occur instantaneously. Most customers of nearly all > servers! If all servers get assigned RESERVEd pages, people will likely be > more unhappy than they are now. > > I suspect SET RESERVE will cause some interesting side effects. Just > speculating, but I think it may force these guests to look like polling > guests, in that pages will only be paged out during emergency scan, e.g > probably not the pages you want. Hence, as Rob van der Heij has recommended, > you may need to beef up your XSTOR. > > Mark Wheeler > UnitedHealth Group > > > > >> Date: Thu, 17 Mar 2011 11:38:52 -0700 >> From: dkreu...@vm-resources.com >> Subject: Re: Where is kernel loaded in memory? >> To: LINUX-390@VM.MARIST.EDU >> >> Have you considered SET RESERVE for this guest? What about expanded >> storage tweaks/increase? >> David >> >> >> -------- Original Message -------- >> Subject: Re: Where is kernel loaded in memory? >> From: Mark Wheeler <mwheele...@hotmail.com> >> Date: Thu, March 17, 2011 2:11 pm >> To: LINUX-390@VM.MARIST.EDU >> >> MQ Broker. >> >> >>> Date: Thu, 17 Mar 2011 12:22:35 -0500 >>> From: marcy.d.cor...@wellsfargo.com >>> Subject: Re: Where is kernel loaded in memory? >>> To: LINUX-390@VM.MARIST.EDU >>> >>> Mark, is this WAS? Is it possible it involves the heap? (BTDT :) >>> >>> >>> Marcy >> >> ---------------------------------------------------------------------- >> For LINUX-390 subscribe / signoff / archive access instructions, >> send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or >> visit >> http://www.marist.edu/htbin/wlvindex?LINUX-390 >> ---------------------------------------------------------------------- >> For more information on Linux on System z, visit >> http://wiki.linuxvm.org/ >> >> ---------------------------------------------------------------------- >> For LINUX-390 subscribe / signoff / archive access instructions, >> send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or >> visit >> http://www.marist.edu/htbin/wlvindex?LINUX-390 >> ---------------------------------------------------------------------- >> For more information on Linux on System z, visit >> http://wiki.linuxvm.org/ > > ---------------------------------------------------------------------- > For LINUX-390 subscribe / signoff / archive access instructions, > send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit > http://www.marist.edu/htbin/wlvindex?LINUX-390 > ---------------------------------------------------------------------- > For more information on Linux on System z, visit > http://wiki.linuxvm.org/ ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
