2012-11-11 02:08 AM
We have 30 SAS disks in our environment and i would like to know what will be the total size of these disks and USABLE SIZE ,WAFL RESERVE , AGGR SNAP RESERVE etc..
Please note we don't have SNAPSHOT at VOLUME LEVEL but we have only at the AGGR level.
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2012-11-12 01:07 PM
These will NOT be exact numbers obviously, but it appears you are calculating with 300 GB disks but not right-sizing them. 300 GB disks actually right-size to 272 GB each, I think.
So you should see something like this:
30 disks, 2 parity, 28 data disks
Aggr Size: 28 * 272 = 7616 GB
WAFL Reserve: 7616 * .10 = 762 GB
Aggr Reserve: 7616 * .05 = 381 GB
Usable Aggr Size: 7616 - 762 - 381 = 6473 GB