Re: [zfs-discuss] How does resilver/scrub work?

2012-05-24 Thread Jim Klimov
Let me try to formulate my idea again... You called a similar process "pushing the rope" some time ago, I think. I feel like I'm passing some exam and am trying to pick answers for a discipline like philosophy and I have no idea about the examinator's preferences - is he an ex-Communism teacher o

Re: [zfs-discuss] How does resilver/scrub work?

2012-05-24 Thread Richard Elling
big assumption below... On May 24, 2012, at 6:06 AM, Jim Klimov wrote: > Let me try to formulate my idea again... You called a similar > process "pushing the rope" some time ago, I think. > > I feel like I'm passing some exam and am trying to pick answers > for a discipline like philosophy and I

Re: [zfs-discuss] How does resilver/scrub work?

2012-05-24 Thread Jim Klimov
2012-05-24 18:55, Richard Elling wrote: This is a big assumption -- that the disk will operate normally, even for data it cannot read. In my experience, this assumption is not valid for the majority of HDD failure modes. Also, in the case of consumer-grade disks, a single sector media error could