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computing:storage:zfs_replace_drive
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computing:storage:zfs_replace_drive [2021/08/04 10:46] gcooper |
computing:storage:zfs_replace_drive [2023/07/05 11:39] (current) gcooper |
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| ====== ZFS Failed Disk Replacement ====== | ====== ZFS Failed Disk Replacement ====== | ||
| + | |||
| + | **Hot Spares**: https:// | ||
| + | |||
| + | **Hot Spares**: https:// | ||
| https:// | https:// | ||
| Line 31: | Line 35: | ||
| https:// | https:// | ||
| - | <note tip>Use '' | + | <note tip>Use '' |
| < | < | ||
| Line 37: | Line 41: | ||
| </ | </ | ||
| - | <note tip>To replace a failed drive by replacing it in-place, it is best to shut down the server, remove and replace the failed drive, | + | <note tip>To replace a failed drive by replacing it **in-place**, it is best to shut down the server, remove and replace the failed drive, |
| < | < | ||
| Line 43: | Line 47: | ||
| </ | </ | ||
| - | <note tip>'' | + | <note tip> |
| + | </ | ||
| + | |||
| + | < | ||
| + | zpool replace -f " | ||
| + | </ | ||
| + | |||
| + | <note tip>'' | ||
| ==== Replace Old Drives With New or Bigger ==== | ==== Replace Old Drives With New or Bigger ==== | ||
| Line 53: | Line 64: | ||
| < | < | ||
| zpool attach < | zpool attach < | ||
| - | # Wait for it to resilver, which adds redundancy | + | # Wait for it to resilver, which adds redundancy, then |
| zpool detach < | zpool detach < | ||
| </ | </ | ||
| Line 59: | Line 70: | ||
| ==== Spares ==== | ==== Spares ==== | ||
| - | Usually a spare can replace a faulted disk but remains a spare. | + | Usually a spare can replace a faulted disk but **remains a spare**. The idea behind this is that you replace the faulted disk, then replace the spare with the new and the spare remains a spare. |
| If you want to remove the spare property, first remove then replace. | If you want to remove the spare property, first remove then replace. | ||
| - | + | ||
| + | ===== Pool Expansion ===== | ||
| + | |||
| + | https:// | ||
| + | |||
| + | https:// | ||
| + | |||
| + | ==== CLI ==== | ||
| + | |||
| + | <note tip>You can expand a ZFS pool by replacing redundant drives on replacing them **one at a time**. | ||
| + | |||
| + | <note tip>Shut down the server to physically replace drives. If you have hotswap capability, you can use '' | ||
| + | |||
| + | < | ||
| + | # Set the autoexpand property so the new disk space is recognized | ||
| + | zpool set autoexpand=on < | ||
| + | # Verify everything is online before replacing a disk | ||
| + | zpool status | ||
| + | # Take the old, smaller disk offline before removing it | ||
| + | zpool offline < | ||
| + | ##### Physically replace the disk with the new larger disk ##### | ||
| + | zpool online < | ||
| + | # Optionally kick off the autoexpand of each new larger device | ||
| + | zpool online -e < | ||
| + | </ | ||
computing/storage/zfs_replace_drive.1628095580.txt.gz · Last modified: 2021/08/04 10:46 by gcooper
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