Notifying ZFS of Device Availability
After a device is reattached to the system, ZFS might or might not
automatically detect its availability. If the pool was previously
UNAVAIL
or SUSPENDED
, or the system
was rebooted as part of the attach
procedure, then ZFS
automatically rescans all devices when it tries to open the pool. If the pool
was degraded and the device was replaced while the system was running, you must
notify ZFS that the device is now available and ready to be reopened by using
the zpool online
command. For example:
$ zpool online system1 c0t1d0
For more information about bringing devices online, see Taking Devices in a Storage Pool Offline or Returning Online.