I accidentally extended a pool...

[Hexland]

So, I have a large zpool (6 x 3TB drives) in Raid-Z2 configuration
I am running FreeNAS-9.3-STABLE-201605170422

NAME STATE READ WRITE CKSUM
ZPOOL01 ONLINE 0 0 0
raidz2-0 ONLINE 0 0 0
gptid/9ea254b9-cdc2-11e4-8155-000c29ade91a ONLINE 0 0 0
gptid/9f102407-cdc2-11e4-8155-000c29ade91a ONLINE 0 0 0
gptid/9f8ce57c-cdc2-11e4-8155-000c29ade91a ONLINE 0 0 0
gptid/a01d5dc8-cdc2-11e4-8155-000c29ade91a ONLINE 0 0 0
gptid/a08e24a6-cdc2-11e4-8155-000c29ade91a ONLINE 0 0 0
gptid/a1087fc2-cdc2-11e4-8155-000c29ade91a ONLINE 0 0 0

I added 2 new drives to the machine, and intended to set them up as a new pool, and mirror them.
However, I screwed up and added them to my main pool (so it now looks like this...)

NAME STATE READ WRITE CKSUM
ZPOOL01 ONLINE 0 0 0
raidz2-0 ONLINE 0 0 0
gptid/9ea254b9-cdc2-11e4-8155-000c29ade91a ONLINE 0 0 0
gptid/9f102407-cdc2-11e4-8155-000c29ade91a ONLINE 0 0 0
gptid/9f8ce57c-cdc2-11e4-8155-000c29ade91a ONLINE 0 0 0
gptid/a01d5dc8-cdc2-11e4-8155-000c29ade91a ONLINE 0 0 0
gptid/a08e24a6-cdc2-11e4-8155-000c29ade91a ONLINE 0 0 0
gptid/a1087fc2-cdc2-11e4-8155-000c29ade91a ONLINE 0 0 0
mirror-1 ONLINE 0 0 0
gptid/cc2e0647-61e4-11e6-aa6c-000c29ade91a ONLINE 0 0 0
gptid/ce359085-61e4-11e6-aa6c-000c29ade91a ONLINE 0 0 0

How do I safely remove these drives from my original pool without destroying anything?

Thanks

 

[CraigD]

You can't unless you destroy the pool at least it is a mirror


Have Fun

 

[Hexland]

A mirror of what though?
It's only 2 x 2TB drives... are they a mirror of each other - so I've just extended my pool by 2TB?

 

[Bidule0hm]

Yes, exactly ;)

 

[DaveY]

I've yet to find a way to remove drives from a pool. Only option is to build a separate pool, move all the data there and then rebuild the pool and move the data back. On the bright side, it'll clean up fragmentations. :)

 

[joeschmuck]

I've yet to find a way to remove drives from a pool.

Exactly, you cannot as told in the first reply to your posting.

On the bright side, it'll clean up fragmentations. :)

At least you found the bright side, many just get all pissy and complain about it. There are things we can do but one thing we can't do is change the way ZFS works and this has nothing to do with FreeNAS.

 

[Mirfster]

Exactly, you cannot as told in the first reply to your posting.

Psst... Hexland was the OP Author and DaveY was just a contributor. ;)

 

[joeschmuck]

Psst... Hexland was the OP Author and DaveY was just a contributor. ;)

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