{"id":188,"date":"2010-04-06T04:28:30","date_gmt":"2010-04-06T04:28:30","guid":{"rendered":"http:\/\/poojanwagh.opalstacked.com\/techblog\/?p=188"},"modified":"2010-04-06T04:33:07","modified_gmt":"2010-04-06T04:33:07","slug":"re-labeling-my-zfs-devices-with-glabel","status":"publish","type":"post","link":"https:\/\/tech.poojanblog.com\/blog\/un\/re-labeling-my-zfs-devices-with-glabel\/","title":{"rendered":"Re-labeling my ZFS devices with glabel"},"content":{"rendered":"

As I stated before<\/a>, I wanted to move the underlying devices in my ZFS pool to glabel-based naming.
\nTo do so, I did the following 3 commands:<\/p>\n

> sudo zpool offline tank da2s1
\n> sudo glabel label -v fantom_1tb \/dev\/da2
\nMetadata value stored on \/dev\/da2.
\nDone.
\n> sudo zpool replace tank da2s1 \/dev\/label\/fantom_1tb
\n<\/code>
\nThen, doing a zpool status<\/code> yields:
\n> zpool status
\npool: tank
\nstate: DEGRADED
\nstatus: One or more devices is currently being resilvered. The pool will
\ncontinue to function, possibly in a degraded state.
\naction: Wait for the resilver to complete.
\nscrub: resilver in progress for 0h1m, 0.45% done, 3h47m to go
\nconfig:<\/p>\n

NAME STATE READ WRITE CKSUM
\ntank DEGRADED 0 0 0
\n raidz1 DEGRADED 0 0 0
\n da0s1 ONLINE 0 0 0 3.52M resilvered
\n da1s1 ONLINE 0 0 0 3.51M resilvered
\n replacing DEGRADED 0 0 0
\n da2s1 OFFLINE 0 4.55K 0
\n label\/fantom_1tb ONLINE 0 0 0 296M resilvered
\n cache
\n label\/pico_usb ONLINE 0 0 0<\/p>\n

errors: No known data errors
\n<\/code>
\nWhen the resilvering of da2<\/code> is done, I’ll do da1<\/code> and da0<\/code> in a similar manner. This way, I don’t have to plug the USB drives into the exact same port every time. My ZFS pool will be more reliable, because it’s less sensitive to the USB port ordering.\n<\/p>\n