Join Date: May 2004
Location: Port Orange, FL
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Originally Posted by DotJun
Ahhh ok. I'm trying out snapraid right now and it's pretty dang fast as far as the parity calcs go but the sync command that I run might be the same as the update command that you run. I'm not sure if snapraid has a verify/validate command so I guess we can't really compare them.
Snapraid sync is the same as FlexRAID update. Snapraid scrub -p 100 is the same as FlexRAID verify (both products can also do partial array verifies). Snapraid diff is the same as FlexRAID quick-validate. Snapraid has no analog to FlexRAID validate. Also note that the speed reports are not comparable, you may get a reading of 20MBps in FlexRAID and 500MBps in snapraid, when in reality they are both processing exactly the same data and will finish at the same time. FlexRAID essentially reports the weakest link, while Snapraid sums up the totals across all drives being read/written. The FlexRAID method is a little more "sane" as far as a relevant number goes because it's equally valid no matter how many drives are in the array. The snapraid number is artificially inflated by simply adding new drives, even when the resulting process ends up taking longer than it did with fewer drives.
Last edited by Quaraxkad; Today at 12:59 AM.