PageFile on SBS 2008
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From: Roger on 2 Mar 2010 17:12 Hi All, One of my client was asking me that one of the partition drive that I setup shows16GB is used, but cannot see the file. I told him that this file, pagefile.sys (16.2GB), is used for the virtual memory on the Window Small Business Server 2008. He doesn't need to worry to much about it since it is hidden. However, he insisted that this pagefile.sys must move to the Boot partition drive so that if we need to do a OS recovery, we use only the boot partiton for recovery. So my question is, should I configure the Window SBS 2008 System Properties, set the Performance Options, Virtual Memory to the Boot disk partition, or C:\ drive? What consideration that I need to make before I make the change? Want is the best practice about configuration of pagefile? If I modified the pagefile.sys to C:\, will that be an issue since I only have 8GB left on the C:\ drive? What are the options? ( I saw that one idea is to partition the drive just for Pagefile allocate 2 times the RAM size on the system, in my case 32GB) I did a search on the SBS group and it seems that I may need to configure the Registry. However, I am not sure if I need to do that for SBS 2008. Currently, the pagefile.sys is located on the F:\ drive, partioned with 117GB. Server Hardware: Window SBS 2008 R2 Intel Quad-Core 64-bit RAM 16GB RAID-5 disks setup SBS 2008 Server Disk partition: C:\ - boot - 70GB - 8GB left E:\ - applications - 50GB - 30GB left F:\ - FileShare - 117 - 107GB left Regards, -Roger
From: Dave Nickason [SBS MVP] on 2 Mar 2010 17:31 The short answer is that you will not need the page file to restore the server. In fact, I think you'll find that it's excluded from backup by default in most file-level backup apps (such as the NT backup in previous SBS versions). You need a page file on C that's a little bigger than physical ram to accommodate a full memory dump, but you'll almost never need a full dump, and in the unlikely event you ran into that situation, you could worry about it then. (Since a full dump would be over 16 GB, think about the difficulty of uploading it to tech support for analysis). Given the partition sizes and free space you're dealing with, I'd configure the page file just as you have it now. "Roger" <rogerliu88(a)gmail.com> wrote in message news:2e29f5c9-b76c-49bf-a863-9a3d5cdb07f2(a)m37g2000yqf.googlegroups.com... > Hi All, > > One of my client was asking me that one of the partition drive that I > setup shows16GB is used, but cannot see the file. I told him that this > file, pagefile.sys (16.2GB), is used for the virtual memory on the > Window Small Business Server 2008. He doesn't need to worry to much > about it since it is hidden. However, he insisted that this > pagefile.sys must move to the Boot partition drive so that if we need > to do a OS recovery, we use only the boot partiton for recovery. > > So my question is, should I configure the Window SBS 2008 System > Properties, set the Performance Options, Virtual Memory to the Boot > disk partition, or C:\ drive? > > What consideration that I need to make before I make the change? > > Want is the best practice about configuration of pagefile? > > If I modified the pagefile.sys to C:\, will that be an issue since I > only have 8GB left on the C:\ drive? What are the options? ( I saw > that one idea is to partition the drive just for Pagefile allocate 2 > times the RAM size on the system, in my case 32GB) > > I did a search on the SBS group and it seems that I may need to > configure the Registry. However, I am not sure if I need to do that > for SBS 2008. > > > Currently, the pagefile.sys is located on the F:\ drive, partioned > with 117GB. > > Server Hardware: > Window SBS 2008 R2 > Intel Quad-Core 64-bit > RAM 16GB > RAID-5 disks setup > > SBS 2008 Server Disk partition: > C:\ - boot - 70GB - 8GB left > E:\ - applications - 50GB - 30GB left > F:\ - FileShare - 117 - 107GB left > > Regards, > -Roger
From: Roger on 3 Mar 2010 01:48 On Mar 2, 2:31 pm, "Dave Nickason [SBS MVP]" <gwdib...(a)NOSPAM.frontiernet.net> wrote: > The short answer is that you will not need the page file to restore the > server. In fact, I think you'll find that it's excluded from backup by > default in most file-level backup apps (such as the NT backup in previous > SBS versions). You need a page file on C that's a little bigger than > physical ram to accommodate a full memory dump, but you'll almost never need > a full dump, and in the unlikely event you ran into that situation, you > could worry about it then. (Since a full dump would be over 16 GB, think > about the difficulty of uploading it to tech support for analysis). > > Given the partition sizes and free space you're dealing with, I'd configure > the page file just as you have it now. > > "Roger" <rogerli...(a)gmail.com> wrote in message > > news:2e29f5c9-b76c-49bf-a863-9a3d5cdb07f2(a)m37g2000yqf.googlegroups.com... > > > Hi All, > > > One of my client was asking me that one of the partition drive that I > > setup shows16GB is used, but cannot see the file. I told him that this > > file, pagefile.sys (16.2GB), is used for the virtual memory on the > > Window Small Business Server 2008. He doesn't need to worry to much > > about it since it is hidden. However, he insisted that this > > pagefile.sys must move to the Boot partition drive so that if we need > > to do a OS recovery, we use only the boot partiton for recovery. > > > So my question is, should I configure the Window SBS 2008 System > > Properties, set the Performance Options, Virtual Memory to the Boot > > disk partition, or C:\ drive? > > > What consideration that I need to make before I make the change? > > > Want is the best practice about configuration of pagefile? > > > If I modified the pagefile.sys to C:\, will that be an issue since I > > only have 8GB left on the C:\ drive? What are the options? ( I saw > > that one idea is to partition the drive just for Pagefile allocate 2 > > times the RAM size on the system, in my case 32GB) > > > I did a search on the SBS group and it seems that I may need to > > configure the Registry. However, I am not sure if I need to do that > > for SBS 2008. > > > Currently, the pagefile.sys is located on the F:\ drive, partioned > > with 117GB. > > > Server Hardware: > > Window SBS 2008 R2 > > Intel Quad-Core 64-bit > > RAM 16GB > > RAID-5 disks setup > > > SBS 2008 Server Disk partition: > > C:\ - boot - 70GB - 8GB left > > E:\ - applications - 50GB - 30GB left > > F:\ - FileShare - 117 - 107GB left > > > Regards, > > -Roger Cool! Thank you Dave
From: Brian Cryer on 3 Mar 2010 04:44 "Roger" <rogerliu88(a)gmail.com> wrote in message news:2e29f5c9-b76c-49bf-a863-9a3d5cdb07f2(a)m37g2000yqf.googlegroups.com... > Hi All, > > One of my client was asking me that one of the partition drive that I > setup shows16GB is used, but cannot see the file. I told him that this > file, pagefile.sys (16.2GB), is used for the virtual memory on the > Window Small Business Server 2008. He doesn't need to worry to much > about it since it is hidden. However, he insisted that this > pagefile.sys must move to the Boot partition drive so that if we need > to do a OS recovery, we use only the boot partiton for recovery. > > So my question is, should I configure the Window SBS 2008 System > Properties, set the Performance Options, Virtual Memory to the Boot > disk partition, or C:\ drive? <snip> Dave has answered this (A: no), but just a small point to add: Is this a partitioned drive or a physically separate drive? You will get better performance if your swapfile is on a separate drive (assuming you are swapping, although if it rarely touches the swap file then it really doesn't matter). If its on its own partition (regardless of whether its on the same physical drive) then its reasonable to *assume* that its contiguous, so not fragmented at all. If you were to now move it to your C drive you can guarantee that it will become fragmented (especially given how little space you have left on the C drive), which means that should your server start swapping that performance will suffer accordingly. -- Brian Cryer www.cryer.co.uk/brian
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