On Tuesday, September 29, 2015 10:35:28 AM John R Pierce wrote:
> On 9/29/2015 10:01 AM, Benjamin Smith wrote:
> > Does anybody here have any recommendations for using PostgreSQL 9.4
> > (latest) with ZFS?
>
> For databases, I've always used mirrored pools, not raidz*.
> put pgdata in its own zfs file system in your zpool. on that dedicated
> zfs, set the blocksize to 8k.
Based on my reading here, that would be -o ashift=13 ?
HowDoesZFSonLinuxHandleAdvacedFormatDrives
EG: 2^13 = 8192