Netapp raid scrubbing on a V-Series

My V-Series NAS is running ontap 7.3, and gets all its disk from a SAN. LUNs are provisioned to the Netapp, which puts them into a raid-0. The SAN itself, of course, uses RAID with scrubbing and prefailure analysis. Basically, we use the SAN to handle all the disk, and the NAS as a file front-end. There are no Netapp native disks- even the filer's root aggregate is on the SAN.

That said, right now the weekly scrubbing that Netapp does is on (default):

nas> options raid.scrub.enable
raid.scrub.enable            on

Since the SAN takes care of its own disks, and since these are all LUNs that would only ever all fail at the same time, can I safely disable scrubbing? Does it do something more than disk checks?

Solution 1:

I'm pretty sure that you're correct - what RAID scrubbing does is read back your stripes and recalculate your checksums, and in this way check for media errors.

So if your array is already handling it, then it's moot. Perhaps to the point where if the NetApp thinks it's got a RAID-0, I'm not sure if it actually can be doing anything - there's nothing there to verify.

Can't find any reference to turning it off in the V-series guide I've got though.