sbs2003 page file size for 3GB RAM
|
Prev: Help on Out of office message in SBS 2003 and exchage
Next: Permissions to Security Center may not be granted to client comput
From: Duncan McC on 9 Nov 2009 21:59 LOL. Thanks, I think that answers my question anyway - cheers. -- Duncan. In article <uYItcvYYKHA.1564(a)TK2MSFTNGP02.phx.gbl>, not(a)your.nellie says... > if the hardware is PAE capable DEP (enabled by default on SBS03) will cause > the system to switch to PAE mode (regardless of switches in boot.ini) and > allow a single paging file over 4GB in size. > > Now we can start the debate about whether large paging files are of any > value. > > "Larry Struckmeyer[SBS-MVP]" <lstruckmeyer(a)mis-wizards.com> wrote in message > news:4e6835155d838cc2f7426ba1363(a)news.microsoft.com... > >I am not sure there is only one correct answer to this. I usually fudge > >and put a 4 GB swap file on each of the partitons, and if there are more > >than two, remove it from the system partition. > > > > I know that there won't be a full system dump if there is a crash, but > > there are so many other ways to resolve blue screens now days that I don't > > worry about it all that much. > > > > - > > Larry > > Please post the resolution to your > > issue so others may benefit > > - > > Get Your SBS Health Check at > > www.sbsbpa.com > > > > > >> Hmm... looking at my test server... > >> > >> Custom size I've set is: 4092Mb's (min & max) > >> > >> And further down... > >> Minimum allowed: 16Mb's > >> Recommended: 5182Mb's ??? > >> Currently Allocated: 4092Mb's (of course!) > >> What's with the recommended size? - if 4Gb is the max Windows will > >> handle? > >> > >> and b) is 4092Mb's a 'correct' amount to set? > >> > >> In article <#ZTuiMXYKHA.220(a)TK2MSFTNGP02.phx.gbl>, > >> Charlie(a)mvKILLALLSPAMMERSps.org says... > >> > >>> Subject: Re: sbs2003 page file size for 3GB RAM > >>> From: Charlie Russel - MVP <Charlie(a)mvKILLALLSPAMMERSps.org> > >>> Newsgroups: microsoft.public.windows.server.sbs > >>> I'd certainly increase it to 4GB, yes. > >>> > >>> -- > >>> Charlie. > >>> http://msmvps.com/blogs/russel > >>> "ethos" <cp(a)ethosnetworks.com> wrote in message > >>> news:3249be94-cb46-4b6a-a7b5-119d60657a97(a)12g2000pri.googlegroups.com > >>> ... > >>> > >>>> Upgraded our SBS2003 from 1GB to 3GB of RAM. Page file for 1GB was > >>>> set > >>>> at custom 1.5G min and max. Understand that 1.5x RAM is a MS > >>>> recommended so do I change the page file to 4.5GB min and max. > >>>> However > >>>> have read in posts that there is a 4GB max page file size? > >>>> Appreciate > >>>> any recommendations or comments. > >>>> thanks > >>>> Chris > > > > > > >
From: SuperGumby [SBS MVP] on 9 Nov 2009 23:08
may as well anyway. some is fact, some opinion, mine and others. The maximum RAM available to SBS03 is 4GB. The full 4GB can only be made available to the OS if memory mapped devices, normally located in this 4GB space can be moved out of the space. This requires the hardware to support addressing outside 32bit, normally using the same mechanisms which allow PAE in the OS. We hit a difference, and oft discussed common problem at this point, 'I put 4GB of RAM into my server but it only reports 3.5GB'. Any SBS03 system with 4GB of installed RAM that does NOT report the full 4GB _probably_ does not support PAE, and therefore cannot have a single page file >4GB. The paging file on the OS drive should be 4GB. The possibility exists for multiple paging files either on the same drive or another, in most cases SBS 03 will not benefit much from this even if it is on a separate drive. An SBS system that busy ain't gonna work too well no matter how many nor how large the PFs, particular as it is not proper server hardware. An SBS03 system which reports the full 4GB is _most likely_ going to run in PAE mode which allows a PF above 4GB (and I think install creates it at 6GB). This actually creates a problem because a certain space (could be PTEs, or a handle of some kind) changes from using short address pointers to the PF to using long, exhausting the space quicker. This can be rectified by reducing the PF to under 4GB. For optimum performance the PF under Windows should be no smaller than installed RAM and no larger than is required. "Duncan McC" <hard(a)work.ok> wrote in message news:MPG.25639e4a304f775e989b35(a)news.microsoft.com... > LOL. > > Thanks, I think that answers my question anyway - cheers. > > -- > Duncan. > > > In article <uYItcvYYKHA.1564(a)TK2MSFTNGP02.phx.gbl>, not(a)your.nellie > says... >> if the hardware is PAE capable DEP (enabled by default on SBS03) will >> cause >> the system to switch to PAE mode (regardless of switches in boot.ini) and >> allow a single paging file over 4GB in size. >> >> Now we can start the debate about whether large paging files are of any >> value. >> >> "Larry Struckmeyer[SBS-MVP]" <lstruckmeyer(a)mis-wizards.com> wrote in >> message >> news:4e6835155d838cc2f7426ba1363(a)news.microsoft.com... >> >I am not sure there is only one correct answer to this. I usually fudge >> >and put a 4 GB swap file on each of the partitons, and if there are more >> >than two, remove it from the system partition. >> > >> > I know that there won't be a full system dump if there is a crash, but >> > there are so many other ways to resolve blue screens now days that I >> > don't >> > worry about it all that much. >> > >> > - >> > Larry >> > Please post the resolution to your >> > issue so others may benefit >> > - >> > Get Your SBS Health Check at >> > www.sbsbpa.com >> > >> > >> >> Hmm... looking at my test server... >> >> >> >> Custom size I've set is: 4092Mb's (min & max) >> >> >> >> And further down... >> >> Minimum allowed: 16Mb's >> >> Recommended: 5182Mb's ??? >> >> Currently Allocated: 4092Mb's (of course!) >> >> What's with the recommended size? - if 4Gb is the max Windows will >> >> handle? >> >> >> >> and b) is 4092Mb's a 'correct' amount to set? >> >> >> >> In article <#ZTuiMXYKHA.220(a)TK2MSFTNGP02.phx.gbl>, >> >> Charlie(a)mvKILLALLSPAMMERSps.org says... >> >> >> >>> Subject: Re: sbs2003 page file size for 3GB RAM >> >>> From: Charlie Russel - MVP <Charlie(a)mvKILLALLSPAMMERSps.org> >> >>> Newsgroups: microsoft.public.windows.server.sbs >> >>> I'd certainly increase it to 4GB, yes. >> >>> >> >>> -- >> >>> Charlie. >> >>> http://msmvps.com/blogs/russel >> >>> "ethos" <cp(a)ethosnetworks.com> wrote in message >> >>> news:3249be94-cb46-4b6a-a7b5-119d60657a97(a)12g2000pri.googlegroups.com >> >>> ... >> >>> >> >>>> Upgraded our SBS2003 from 1GB to 3GB of RAM. Page file for 1GB was >> >>>> set >> >>>> at custom 1.5G min and max. Understand that 1.5x RAM is a MS >> >>>> recommended so do I change the page file to 4.5GB min and max. >> >>>> However >> >>>> have read in posts that there is a 4GB max page file size? >> >>>> Appreciate >> >>>> any recommendations or comments. >> >>>> thanks >> >>>> Chris >> > >> > >> >> >> |