ZFS detach mirrored drives in a pool
Clash Royale CLAN TAG#URR8PPP
I have an older (2-3 years) NAS running FreeNAS. I figured its time to upgrade some of the hard drives. Here's the current status:
NAME STATE READ WRITE CKSUM
Pool1 ONLINE 0 0 0
raidz1 ONLINE 0 0 0
ada3p2 ONLINE 0 0 0
ada4p2 ONLINE 0 0 0
ada5p2 ONLINE 0 0 0
mirror ONLINE 0 0 0
ada1p2 ONLINE 0 0 0
ada2p2 ONLINE 0 0 0
The drives in RaidZ1 are all 1GB and will stay.
What's the best way to add 2 or 3 more 1GB hard drives to RaidZ1 and completely remove the mirrored drives, which are 500GB only, without:
- Copying the data to a temporary holding spot
- Recreating the pool
- Copying it back
The pool is about 50% full, so I'm not even sure there's data on the mirrored drives.
How to check or where to begin?
zfs freenas nas
edited Jul 2 '14 at 17:38
polym
6,74143158
asked Jul 1 '14 at 14:53
dopefreshuserdopefreshuser
192
add a comment |
I have an older (2-3 years) NAS running FreeNAS. I figured its time to upgrade some of the hard drives. Here's the current status:
NAME STATE READ WRITE CKSUM
Pool1 ONLINE 0 0 0
raidz1 ONLINE 0 0 0
ada3p2 ONLINE 0 0 0
ada4p2 ONLINE 0 0 0
ada5p2 ONLINE 0 0 0
mirror ONLINE 0 0 0
ada1p2 ONLINE 0 0 0
ada2p2 ONLINE 0 0 0
The drives in RaidZ1 are all 1GB and will stay.
What's the best way to add 2 or 3 more 1GB hard drives to RaidZ1 and completely remove the mirrored drives, which are 500GB only, without:
- Copying the data to a temporary holding spot
- Recreating the pool
- Copying it back
The pool is about 50% full, so I'm not even sure there's data on the mirrored drives.
How to check or where to begin?
zfs freenas nas
edited Jul 2 '14 at 17:38
polym
6,74143158
asked Jul 1 '14 at 14:53
dopefreshuserdopefreshuser
192
Surely you mean 1 TB instead of "1GB", right?
– Kenny Evitt
Mar 30 '18 at 0:38
add a comment |
I have an older (2-3 years) NAS running FreeNAS. I figured its time to upgrade some of the hard drives. Here's the current status:
NAME STATE READ WRITE CKSUM
Pool1 ONLINE 0 0 0
raidz1 ONLINE 0 0 0
ada3p2 ONLINE 0 0 0
ada4p2 ONLINE 0 0 0
ada5p2 ONLINE 0 0 0
mirror ONLINE 0 0 0
ada1p2 ONLINE 0 0 0
ada2p2 ONLINE 0 0 0
The drives in RaidZ1 are all 1GB and will stay.
What's the best way to add 2 or 3 more 1GB hard drives to RaidZ1 and completely remove the mirrored drives, which are 500GB only, without:
- Copying the data to a temporary holding spot
- Recreating the pool
- Copying it back
The pool is about 50% full, so I'm not even sure there's data on the mirrored drives.
How to check or where to begin?
zfs freenas nas
edited Jul 2 '14 at 17:38
polym
6,74143158
asked Jul 1 '14 at 14:53
dopefreshuserdopefreshuser
192
I have an older (2-3 years) NAS running FreeNAS. I figured its time to upgrade some of the hard drives. Here's the current status:
NAME STATE READ WRITE CKSUM
Pool1 ONLINE 0 0 0
raidz1 ONLINE 0 0 0
ada3p2 ONLINE 0 0 0
ada4p2 ONLINE 0 0 0
ada5p2 ONLINE 0 0 0
mirror ONLINE 0 0 0
ada1p2 ONLINE 0 0 0
ada2p2 ONLINE 0 0 0
The drives in RaidZ1 are all 1GB and will stay.
What's the best way to add 2 or 3 more 1GB hard drives to RaidZ1 and completely remove the mirrored drives, which are 500GB only, without:
- Copying the data to a temporary holding spot
- Recreating the pool
- Copying it back
The pool is about 50% full, so I'm not even sure there's data on the mirrored drives.
How to check or where to begin?
zfs freenas nas
zfs freenas nas
edited Jul 2 '14 at 17:38
polym
6,74143158
asked Jul 1 '14 at 14:53
dopefreshuserdopefreshuser
192
edited Jul 2 '14 at 17:38
polym
6,74143158
asked Jul 1 '14 at 14:53
dopefreshuserdopefreshuser
192
edited Jul 2 '14 at 17:38
polym
6,74143158
edited Jul 2 '14 at 17:38
polym
6,74143158
edited Jul 2 '14 at 17:38
polym
6,74143158
6,74143158
asked Jul 1 '14 at 14:53
dopefreshuserdopefreshuser
192
asked Jul 1 '14 at 14:53
dopefreshuserdopefreshuser
192
asked Jul 1 '14 at 14:53
dopefreshuserdopefreshuser
192
192
Surely you mean 1 TB instead of "1GB", right?
– Kenny Evitt
Mar 30 '18 at 0:38
add a comment |
Surely you mean 1 TB instead of "1GB", right?
– Kenny Evitt
Mar 30 '18 at 0:38
Surely you mean 1 TB instead of "1GB", right?
– Kenny Evitt
Mar 30 '18 at 0:38
Surely you mean 1 TB instead of "1GB", right?
– Kenny Evitt
Mar 30 '18 at 0:38
add a comment |
2 Answers
2
active
oldest
votes
The only way to do it is as you suggest: copy all the datasets to a new pool and rebuild this one. zfs does not support extending raidz1's by adding drives to it, and it doesn't support removing top-level vdevs either (which is what 'mirror' is).
answered Jul 2 '14 at 0:38
mmusantemmusante
61736
I know that seems the obvious solutions but there has to be something more elegant/geeky that can be done. After all ZFS is the best filesystem on earth right? :)
– dopefreshuser
Jul 2 '14 at 14:50
update - freebsdfoundation.org/blog/… and delphix.com/blog/delphix-engineering/openzfs-device-removal
– mmusante
Jun 14 '18 at 0:21
add a comment |
First before making any changes, you may want to consider kicking off a zpool scrub to ensure everything is healthy.
Going off memory (so you'll want to confirm), I believe the option you'll want is zpool add to be able to grow your existing raidz pool.
To easily move the data around, you can use zfs send|receive, along with using snapshots for incremental send|receives.
answered Feb 3 '17 at 22:19
sleepyweaselsleepyweasel
88329
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
The only way to do it is as you suggest: copy all the datasets to a new pool and rebuild this one. zfs does not support extending raidz1's by adding drives to it, and it doesn't support removing top-level vdevs either (which is what 'mirror' is).
answered Jul 2 '14 at 0:38
mmusantemmusante
61736
I know that seems the obvious solutions but there has to be something more elegant/geeky that can be done. After all ZFS is the best filesystem on earth right? :)
– dopefreshuser
Jul 2 '14 at 14:50
update - freebsdfoundation.org/blog/… and delphix.com/blog/delphix-engineering/openzfs-device-removal
– mmusante
Jun 14 '18 at 0:21
add a comment |
The only way to do it is as you suggest: copy all the datasets to a new pool and rebuild this one. zfs does not support extending raidz1's by adding drives to it, and it doesn't support removing top-level vdevs either (which is what 'mirror' is).
answered Jul 2 '14 at 0:38
mmusantemmusante
61736
I know that seems the obvious solutions but there has to be something more elegant/geeky that can be done. After all ZFS is the best filesystem on earth right? :)
– dopefreshuser
Jul 2 '14 at 14:50
update - freebsdfoundation.org/blog/… and delphix.com/blog/delphix-engineering/openzfs-device-removal
– mmusante
Jun 14 '18 at 0:21
add a comment |
The only way to do it is as you suggest: copy all the datasets to a new pool and rebuild this one. zfs does not support extending raidz1's by adding drives to it, and it doesn't support removing top-level vdevs either (which is what 'mirror' is).
answered Jul 2 '14 at 0:38
mmusantemmusante
61736
The only way to do it is as you suggest: copy all the datasets to a new pool and rebuild this one. zfs does not support extending raidz1's by adding drives to it, and it doesn't support removing top-level vdevs either (which is what 'mirror' is).
answered Jul 2 '14 at 0:38
mmusantemmusante
61736
answered Jul 2 '14 at 0:38
mmusantemmusante
61736
answered Jul 2 '14 at 0:38
mmusantemmusante
61736
answered Jul 2 '14 at 0:38
mmusantemmusante
61736
61736
I know that seems the obvious solutions but there has to be something more elegant/geeky that can be done. After all ZFS is the best filesystem on earth right? :)
– dopefreshuser
Jul 2 '14 at 14:50
update - freebsdfoundation.org/blog/… and delphix.com/blog/delphix-engineering/openzfs-device-removal
– mmusante
Jun 14 '18 at 0:21
add a comment |
I know that seems the obvious solutions but there has to be something more elegant/geeky that can be done. After all ZFS is the best filesystem on earth right? :)
– dopefreshuser
Jul 2 '14 at 14:50
update - freebsdfoundation.org/blog/… and delphix.com/blog/delphix-engineering/openzfs-device-removal
– mmusante
Jun 14 '18 at 0:21
I know that seems the obvious solutions but there has to be something more elegant/geeky that can be done. After all ZFS is the best filesystem on earth right? :)
– dopefreshuser
Jul 2 '14 at 14:50
I know that seems the obvious solutions but there has to be something more elegant/geeky that can be done. After all ZFS is the best filesystem on earth right? :)
– dopefreshuser
Jul 2 '14 at 14:50
update - freebsdfoundation.org/blog/… and delphix.com/blog/delphix-engineering/openzfs-device-removal
– mmusante
Jun 14 '18 at 0:21
update - freebsdfoundation.org/blog/… and delphix.com/blog/delphix-engineering/openzfs-device-removal
– mmusante
Jun 14 '18 at 0:21
add a comment |
First before making any changes, you may want to consider kicking off a zpool scrub to ensure everything is healthy.
Going off memory (so you'll want to confirm), I believe the option you'll want is zpool add to be able to grow your existing raidz pool.
To easily move the data around, you can use zfs send|receive, along with using snapshots for incremental send|receives.
answered Feb 3 '17 at 22:19
sleepyweaselsleepyweasel
88329
add a comment |
First before making any changes, you may want to consider kicking off a zpool scrub to ensure everything is healthy.
Going off memory (so you'll want to confirm), I believe the option you'll want is zpool add to be able to grow your existing raidz pool.
To easily move the data around, you can use zfs send|receive, along with using snapshots for incremental send|receives.
answered Feb 3 '17 at 22:19
sleepyweaselsleepyweasel
88329
add a comment |
First before making any changes, you may want to consider kicking off a zpool scrub to ensure everything is healthy.
Going off memory (so you'll want to confirm), I believe the option you'll want is zpool add to be able to grow your existing raidz pool.
To easily move the data around, you can use zfs send|receive, along with using snapshots for incremental send|receives.
answered Feb 3 '17 at 22:19
sleepyweaselsleepyweasel
88329
First before making any changes, you may want to consider kicking off a zpool scrub to ensure everything is healthy.
Going off memory (so you'll want to confirm), I believe the option you'll want is zpool add to be able to grow your existing raidz pool.
To easily move the data around, you can use zfs send|receive, along with using snapshots for incremental send|receives.
answered Feb 3 '17 at 22:19
sleepyweaselsleepyweasel
88329
answered Feb 3 '17 at 22:19
sleepyweaselsleepyweasel
88329
answered Feb 3 '17 at 22:19
sleepyweaselsleepyweasel
88329
answered Feb 3 '17 at 22:19
sleepyweaselsleepyweasel
88329
88329
add a comment |
add a comment |
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Surely you mean 1 TB instead of "1GB", right?
– Kenny Evitt
Mar 30 '18 at 0:38