tcronin 95651 (7/10/2015)
made some SAN settings change looks better today. DO have a question I was going to post anyhow. I have generally set my windows (on win 2008 enterprise) swap file per windows setting. SAN guy told me he heard we need the swap file to be 1.5 times the size of memory (that would be 192 gig on this server), that seems insane, I could see in 7.0 days and before but not now. Anyone else doing this?
I just don't know anyone that runs their server OS drive on the SAN instead of on a pair of local SSDs that are mirrored. Use a 1 TB SSD and you have plenty of room for your swap file. I'm pretty sure you don't wan't page file swaps going across the SAN fabric. As to size for your paging file, I know some folks that use a formula of 2x RAM plus some, but I can't come up with a reason to do much more than just exceed RAM size, although it may be I just haven't encountered it yet. I also can't come up with a good reason to subject your OS paging traffic to the I/O slowdown associated with using the SAN fabric.
Steve (aka sgmunson) 🙂 🙂 🙂
Rent Servers for Income (picks and shovels strategy)