Re: [zfs-discuss] Convert pool from ashift=12 to ashift=9

2012-03-20 Thread Jim Klimov
2012-03-18 23:47, Richard Elling wrote: ... Yes, it is wrong to think that. Ok, thanks, we won't try that :) copy out, copy in. Whether this is easy or not depends on how well you plan your storage use ... Home users and personal budgets do tend to have a problem with planning. Any

Re: [zfs-discuss] Convert pool from ashift=12 to ashift=9

2012-03-20 Thread Nathan Kroenert
Jim Klimov wrote: It is is hard enough already to justify to an average wife that...snip That made my night. Thanks, Jim. :) On 03/20/12 10:29 PM, Jim Klimov wrote: 2012-03-18 23:47, Richard Elling wrote: ... Yes, it is wrong to think that. Ok, thanks, we won't try that :) copy out,

[zfs-discuss] Basic ZFS Questions + Initial Setup Recommendation

2012-03-20 Thread MLR
I read the ZFS_Best_Practices_Guide and ZFS_Evil_Tuning_Guide, and have some questions: 1. Cache device for L2ARC Say we get a decent ssd, ~500MB/s read/write. If we have a 20 HDD zpool setup shouldn't we be reading at least at the 500MB/s read/write range? Why would we want a ~500MB/s