ZFS io error when disks are in idle/standby/spindown mode

openzfsonosx / zfs

OpenZFS on OS X

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ZFS io error when disks are in idle/standby/spindown mode #629

Open kamil6x opened 6 years ago

kamil6x commented 6 years ago

Mac Pro Early 2008, Controller Highpoint 2720. 8 drives Sata 7200 RPM. When the controller is set to idle spin down and the drives are put to sleep, ZFS drops the VDEV from the pool with i/o errors. On system restart the zpool restarts as normal with no errors.

lundman commented 6 years ago

That is interesting - I wonder if there are spindown events we should be listening for, and act on to spin back up before IO.

kamil6x commented 6 years ago

The highpoint controller has it's own web interface where it logs events. Not sure if the events go into the Mac os event log.

lundman commented 6 years ago

lets keep an eye on this one too https://github.com/zfsonlinux/zfs/issues/4713