Jeremy,
A-SIS has a slight write performance penalty (a few points) and typically also sees a slight read performance gain (of the same amount), so in short customers who are using it love it. Now you don't use it everywhere, like on DB files.
As for VMware on NFS, enjoy your solution it rocks, don't take my word for it. Google VMware on NFS and sort by date, you'll have allot of reading to do. Quotes from executives at EMC and VMware just support what you are deploying. Make sure to see NetApp's TR3428 for deployment details.
See ya Vaughn
I have read some of the info on how A-SIS works but I have a couple of questions:
- Assuming an average compression rate (say /home with random docs
in it) how much of a performance hit does it impose 2) Does it change how much data is sent over the wire when you use SnapMirror/SnapVault? I.e. if I get 30% compression on a 1 gig snapshot do I send 1 gig or 700 mb to update my target?
Oh, and for the folks who helped earlier, we are moving our Oracle and ESX systems to NetApp, the pSeries will be fibre connected, at least at first but the ESX stuff is all going on NFS.
~Jeremy *__*
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