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RESIDENT=-1 on a Virtual Server

Posted in 2010

Topics: Platform-Specific Issues

kate — — source: IIUG Forums & Mailing Lists

Hey all, I am running Informix 11.5 on Virtual Servers using Linux Redhat 4.5. I remember hearing at the Informix conference that the RESIDENT value should not be set on Virtual servers. Does anyone have confirmation with that? I.e, on a virtual server you should always set RESIDENT=0, correct? Thanks! Kate Tomchik [ kate@iiug.org ] www.iiug.org International Informix Users Group Board of Directors A computer lets you make more mistakes faster than any invention in human history - with the possible exceptions of handguns and tequila. Mitch Ratliffe

↪ replying to kate
Art Kagel — — source: IIUG Forums & Mailing Lists

Yes. There was something about asking the VM to lock a segment would cause the VM's memory to become unswappable in the host OS. So, always set RESIDENT to zero in VMs. Art Art S. Kagel Advanced DataTools (www.advancedatatools.com) IIUG Board of Directors (art@iiug.org) Disclaimer: Please keep in mind that my own opinions are my own opinions and do not reflect on my employer, Advanced DataTools, the IIUG, nor any other organization with which I am associated either explicitly, implicitly, or by inference. Neither do those opinions reflect those of other individuals affiliated with any entity with which I am affiliated nor those of the entities themselves. On Tue, Jun 22, 2010 at 2:46 PM, kate <kate@iiug.org> wrote: > Hey all, > I am running Informix 11.5 on Virtual Servers using Linux Redhat 4.5. > > I remember hearing at the Informix conference that the RESIDENT value > should > not be set on Virtual servers. Does anyone have confirmation with that? > I.e, on a virtual server you should always set RESIDENT=0, correct? > > Thanks! > Kate Tomchik [ kate@iiug.org ] www.iiug.org > International Informix Users Group Board of Directors > > A computer lets you make more mistakes faster than any invention in human > history - with the possible exceptions of handguns and tequila. > Mitch Ratliffe > > > > ******************************************************************************* > Forum Note: Use "Reply" to post a response in the discussion forum. > > --000e0cd23e3e1ff6c90489a3263b

↪ replying to Art Kagel
WALDEMAR ZNOINSKI — — source: IIUG Forums & Mailing Lists

Hi lads, is there a quick check to find out wheter my 11.50FC7 GE is also affected (esxs 3.5 using Raw Device Mapping (rdm) for dbspaces attached to virtual machine)

↪ replying to Art Kagel
James Brunskill — — source: IIUG Forums & Mailing Lists

Interesting, Surely this is only an issue if you are over committing memory on the host? We certainly don't want informix memory to be swapped out... James -----Original Message----- From: ids-bounces@iiug.org [mailto:ids-bounces@iiug.org] On Behalf Of Art Kagel Sent: Wednesday, June 23, 2010 7:09 AM To: ids@iiug.org Subject: Re: RESIDENT=-1 on a Virtual Server [20463] Yes. There was something about asking the VM to lock a segment would cause the VM's memory to become unswappable in the host OS. So, always set RESIDENT to zero in VMs. Art Art S. Kagel Advanced DataTools (www.advancedatatools.com) IIUG Board of Directors (art@iiug.org) Disclaimer: Please keep in mind that my own opinions are my own opinions and do not reflect on my employer, Advanced DataTools, the IIUG, nor any other organization with which I am associated either explicitly, implicitly, or by inference. Neither do those opinions reflect those of other individuals affiliated with any entity with which I am affiliated nor those of the entities themselves. On Tue, Jun 22, 2010 at 2:46 PM, kate <kate@iiug.org> wrote: > Hey all, > I am running Informix 11.5 on Virtual Servers using Linux Redhat 4.5. > > I remember hearing at the Informix conference that the RESIDENT value > should not be set on Virtual servers. Does anyone have confirmation > with that? > I.e, on a virtual server you should always set RESIDENT=0, correct? > > Thanks! > Kate Tomchik [ kate@iiug.org ] www.iiug.org International Informix > Users Group Board of Directors > > A computer lets you make more mistakes faster than any invention in > human history - with the possible exceptions of handguns and tequila. > Mitch Ratliffe > > > > ************************************************************************ ******* > Forum Note: Use "Reply" to post a response in the discussion forum. > > --000e0cd23e3e1ff6c90489a3263b ************************************************************************ ******* Forum Note: Use "Reply" to post a response in the discussion forum.