Re: [zfs-discuss] When is it okay to turn off the "verify" option.

2010-10-04 Thread Edward Ned Harvey
> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- > boun...@opensolaris.org] On Behalf Of Scott Meilicke > > Why do you want to turn verify off? If performance is the reason, is it > significant, on and off? Under most circumstances, verify won't hurt performance. It won't hurt re

Re: [zfs-discuss] When is it okay to turn off the "verify" option.

2010-10-04 Thread Scott Meilicke
Why do you want to turn verify off? If performance is the reason, is it significant, on and off? On Oct 4, 2010, at 2:28 PM, Edward Ned Harvey wrote: >> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- >> boun...@opensolaris.org] On Behalf Of Peter Taps >> >> As I understand, the

Re: [zfs-discuss] When is it okay to turn off the "verify" option.

2010-10-04 Thread Edward Ned Harvey
> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- > boun...@opensolaris.org] On Behalf Of Peter Taps > > As I understand, the hash generated by sha256 is "almost" guaranteed > not to collide. I am thinking it is okay to turn off "verify" property > on the zpool. However, if there is

[zfs-discuss] When is it okay to turn off the "verify" option.

2010-10-04 Thread Peter Taps
Folks, As I understand, the hash generated by sha256 is "almost" guaranteed not to collide. I am thinking it is okay to turn off "verify" property on the zpool. However, if there is indeed a collision, we lose data. "Scrub" cannot recover such lost data. I am wondering in real life when is it