I've noticed that Western Digital have recently released a new range of "NAS optimised" hard disk drives, the Red series.
Among the features these drives have is adjustable error recovery control timeouts (or TLER in WD-parlance).
This made me wonder how well these drives will interact with ZFS. How long does ZFS wait for a drive to return from an operation before considering the disk failed and marking it degraded or failed? What would be the ideal error recovery timeouts to set on these disks when using them in a zpool?
Thanks.
J
Among the features these drives have is adjustable error recovery control timeouts (or TLER in WD-parlance).
This made me wonder how well these drives will interact with ZFS. How long does ZFS wait for a drive to return from an operation before considering the disk failed and marking it degraded or failed? What would be the ideal error recovery timeouts to set on these disks when using them in a zpool?
Thanks.
J