This shows you the differences between two versions of the page.
| Both sides previous revisionPrevious revisionNext revision | Previous revisionLast revisionBoth sides next revision | ||
| zfsraid [2010/11/13 07:20] – Include the actual procedure. peterjeremy | zfsraid [2014/12/13 00:36] – Fix type-o's, wrap code. chuzzwassa | ||
|---|---|---|---|
| Line 6: | Line 6: | ||
| by adding 3 new disks '' | by adding 3 new disks '' | ||
| a 3ware 9650SE-2LP since I'd run out of motherboard ports). | a 3ware 9650SE-2LP since I'd run out of motherboard ports). | ||
| + | |||
| + | Note that this procedure will not defragment your pool and you should do a send|recv if possible. | ||
| ===== Original Configuration ===== | ===== Original Configuration ===== | ||
| Line 117: | Line 119: | ||
| The overall process is: | The overall process is: | ||
| - | - Create a 6-way RAIDZ2 across the 3 new disks (ie each disk provides two vdevs) | + | - Create a 6-way RAIDZ2 across the 3 new disks (ie each disk provides two vdevs). |
| - | - Copy the existing pool onto the new disks | + | - Copy the existing pool onto the new disks. |
| - | - Switch the system to use the new 6-way pool | + | - Switch the system to use the new 6-way pool. |
| - | - Destroy the original pool | + | - Destroy the original pool. |
| - | - Replace the second vdev in each disk with one of the original disks | + | - Replace the second vdev in each disk with one of the original disks. |
| - Re-partition the new disks to expand the remaining vdev to occupy the now unused space. | - Re-partition the new disks to expand the remaining vdev to occupy the now unused space. | ||
| Line 255: | Line 257: | ||
| causes additional seeking between vdevs. | causes additional seeking between vdevs. | ||
| + | < | ||
| zpool scrub tank2 | zpool scrub tank2 | ||
| + | </ | ||
| ==== Switch to new pool ==== | ==== Switch to new pool ==== | ||
| Line 267: | Line 271: | ||
| In order to prevent any updates, the system should be brought down to | In order to prevent any updates, the system should be brought down to | ||
| single-user mode: | single-user mode: | ||
| + | < | ||
| shutdown now | shutdown now | ||
| + | </ | ||
| Once nothing is writing to ZFS, a second snapshot can be taken and | Once nothing is writing to ZFS, a second snapshot can be taken and | ||
| Line 273: | Line 279: | ||
| altered since the previous 'zfs recv' (this includes atime updates). | altered since the previous 'zfs recv' (this includes atime updates). | ||
| + | < | ||
| zfs snapshot -r tank@20101105bu | zfs snapshot -r tank@20101105bu | ||
| zfs rollback -R tank2@20101104bu | zfs rollback -R tank2@20101104bu | ||
| zfs send -R -I tank@20101104bu tank@20101105bu | zfs recv -vu -d tank2 | zfs send -R -I tank@20101104bu tank@20101105bu | zfs recv -vu -d tank2 | ||
| + | </ | ||
| The original pool is now renamed by exporting and importing it under a | The original pool is now renamed by exporting and importing it under a | ||
| new name and then exporting it to umount it. | new name and then exporting it to umount it. | ||
| + | < | ||
| zpool export tank | zpool export tank | ||
| zpool import tank tanko | zpool import tank tanko | ||
| zpool export tanko | zpool export tanko | ||
| + | </ | ||
| And the new pool is renamed to the wanted name via export/ | And the new pool is renamed to the wanted name via export/ | ||
| + | < | ||
| zpool export tank2 | zpool export tank2 | ||
| zpool import tank2 tank | zpool import tank2 tank | ||
| + | </ | ||
| The system can now be returned to multiuser mode and any required testing | The system can now be returned to multiuser mode and any required testing | ||
| performed. | performed. | ||
| + | |||
| + | < | ||
| exit | exit | ||
| + | </ | ||
| ==== Replace vdevs ==== | ==== Replace vdevs ==== | ||
| Line 335: | Line 350: | ||
| In order to expand the pool, the vdevs on the 3 new disks need to be | In order to expand the pool, the vdevs on the 3 new disks need to be | ||
| - | resized. | + | resized. |
| requires a (short) outage. | requires a (short) outage. | ||
| Line 350: | Line 365: | ||
| The system needs to be placed in single-user mode to allow the partitions | The system needs to be placed in single-user mode to allow the partitions | ||
| and pool to be manipulated: | and pool to be manipulated: | ||
| + | |||
| + | < | ||
| shutdown now | shutdown now | ||
| + | </ | ||
| Once in single-user mode, all 3 partition 6's can be deleted and the | Once in single-user mode, all 3 partition 6's can be deleted and the | ||
| Line 366: | Line 384: | ||
| </ | </ | ||
| - | The pool has now expandedto | + | The pool has now expanded to 4TB: |
| < | < | ||
| zpool list | zpool list | ||
| Line 375: | Line 393: | ||
| And the system can be restarted: | And the system can be restarted: | ||
| + | < | ||
| exit | exit | ||
| + | </ | ||
| Remember to add the new disks to (eg) daily_status_smart_devices | Remember to add the new disks to (eg) daily_status_smart_devices | ||