Re: [zfs-discuss] Depth of Scrub

2010-06-05 Thread sensille
David Dyer-Bennet wrote: But what about the parity? Obviously it has to be checked, but I can't find any indications for it in the literature. The man page only states that the data is being checksummed and only if that fails the redundancy is being used. Please tell me I'm wrong ;) I believe y

Re: [zfs-discuss] Depth of Scrub

2010-06-04 Thread Brandon High
On Fri, Jun 4, 2010 at 1:29 AM, sensille wrote: > But what I'm really targeting with my question: How much coverage can be > reached with a find | xargs wc in contrast to scrub? It misses the snapshots, > but anything beyond that? Your script will also update the atime on every file, which may no

Re: [zfs-discuss] Depth of Scrub

2010-06-04 Thread David Dyer-Bennet
On Fri, June 4, 2010 03:29, sensille wrote: > Hi, > > I have a small question about the depth of scrub in a raidz/2/3 > configuration. > I'm quite sure scrub does not check spares or unused areas of the disks > (it > could check if the disks detects any errors there). > But what about the parity?

Re: [zfs-discuss] Depth of Scrub

2010-06-04 Thread Marty Scholes
> I have a small question about the depth of scrub in a > raidz/2/3 configuration. > I'm quite sure scrub does not check spares or unused > areas of the disks (it > could check if the disks detects any errors there). > But what about the parity? >From some informal performance testing of RAIDZ2/3

Re: [zfs-discuss] Depth of Scrub

2010-06-04 Thread Edward Ned Harvey
> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- > boun...@opensolaris.org] On Behalf Of sensille > > I'm quite sure scrub does not check spares or unused areas of the disks > (it > could check if the disks detects any errors there). > But what about the parity? Obviously it has to

[zfs-discuss] Depth of Scrub

2010-06-04 Thread sensille
Hi, I have a small question about the depth of scrub in a raidz/2/3 configuration. I'm quite sure scrub does not check spares or unused areas of the disks (it could check if the disks detects any errors there). But what about the parity? Obviously it has to be checked, but I can't find any indicat