Hi FreeNAS Wizards,
I woke up to an e-mail alert telling me that one of my disks had been removed from my Z2.
Took a look at the server and this disk's activity LED was solid on. I reseated the drive but the kernel didn't even notice. So I pulled the disk and ran a full diagnostic on it from a bench system and it checked out just fine, including a full sector scan.
Thinking it must be a controller fluke, I just shut down the server, put the disk back in, and booted the server up again. I expected to see the disk in Offline status and have to remove and add it again with zpool, and let the array resilver.
However, zpool status shows state ONLINE with status saying one or more devices has experienced an unrecoverable error. The troublesome disk shows 3 checksum errors. But that's it. Everything else seems fine. There wasn't a lot of write activity to the array during this degraded time, but there was some. I'm a little surprised nothing more is shown.
So here I am wondering if I should just kick off a scrub and let ZFS work out disparities that way, or if I should kick the disk out of the array and add it again, resulting in a re-silver.
What say ye Wizards? What's the best approach? Does it matter?
Thanks!
I woke up to an e-mail alert telling me that one of my disks had been removed from my Z2.
Took a look at the server and this disk's activity LED was solid on. I reseated the drive but the kernel didn't even notice. So I pulled the disk and ran a full diagnostic on it from a bench system and it checked out just fine, including a full sector scan.
Thinking it must be a controller fluke, I just shut down the server, put the disk back in, and booted the server up again. I expected to see the disk in Offline status and have to remove and add it again with zpool, and let the array resilver.
However, zpool status shows state ONLINE with status saying one or more devices has experienced an unrecoverable error. The troublesome disk shows 3 checksum errors. But that's it. Everything else seems fine. There wasn't a lot of write activity to the array during this degraded time, but there was some. I'm a little surprised nothing more is shown.
So here I am wondering if I should just kick off a scrub and let ZFS work out disparities that way, or if I should kick the disk out of the array and add it again, resulting in a re-silver.
What say ye Wizards? What's the best approach? Does it matter?
Thanks!