How do you increase the size of a ZFS pool?

You could generally either:

  1. back up your data and re-create the vdev pool with more disks, or.
  2. build a second, separate vdev pool from all-new disks and then use zfs send | zfs receive to migrate the data to the new vdev pool.

How do I replace a ZFS disk?

How to Replace a Disk in the ZFS Root Pool

  1. Physically connect the replacement disk.
  2. Attach the new disk to the root pool.
  3. Confirm the root pool status.
  4. After the resilvering is complete, apply the boot blocks to the new disk.
  5. Verify that you can boot from the new disk.

How do you replace a failed disk in a ZFS mirror?

The following are the basic steps for replacing a disk:

  1. Offline the disk, if necessary, with the zpool offline command.
  2. Remove the disk to be replaced.
  3. Insert the replacement disk.
  4. Run the zpool replace command. For example: # zpool replace tank c1t1d0.
  5. Bring the disk online with the zpool online command.

Can ZFS be expanded?

RAIDZ vdev expansion Finally, ZFS users will be able to expand their storage by adding just one single drive at a time. This feature will make it possible to expand storage as-you-go, which is especially of interest to budget conscious home users 3.

Can you expand a pool in Truenas?

To extend a pool, the vdev being added must be the same type as existing vdevs. Some vdev extending examples: to extend a ZFS mirror, add the same number of drives. The result is a striped mirror.

How do you shrink a ZFS pool?

1. add a temp disk/file vdev to the pool with smaller size, but is enough to hold all existing data (including snapshots etc) 2. remove the old vdev 3. possibly re-partition old vdev to smaller size, or replace with a smaller disk 4.

What is ZFS scrubbing?

The scrub examines all data in the specified pools to verify that it checksums correctly. For replicated (mirror, raidz, or draid) devices, ZFS automatically repairs any damage discovered during the scrub.

How do I extend a ZFS file system?

Extend the zpool by adding a new LUN….Convert the mirror zpool to RaidZ:

  1. Detach the mirror root@Unixarena-SOL11:~# zpool status oracle-S.
  2. Create a new RAIDZ zpool using the detached disk and two new disks.
  3. Migrate the data from oracle-S pool to oracle-Z pool using snapshot.
  4. Verify the data in oracle-Z pool.

Can I add a disk to a ZFS pool?

You can dynamically add disk space to a pool by adding a new top-level virtual device. This disk space is immediately available to all datasets in the pool. The virtual device that you add should have the same level of redundancy as the existing virtual device.