You are trying to add a virtual device....

[KentShades]

Im getting a error on my Raid-z2 setup when expanding saying "
You are trying to add a virtual device consisting of 4 device(s) in a pool that has a virtual device consisting of 18 device(s)"

Is there a way to bypass this at all? Any reason why I'd be getting this error? Doesnt seem to let me continue.

Thanks!

 

[jgreco]

Perhaps you could explain why you're trying to do this. This is generally very bad.

 

[KentShades]

This was just happened to be split out this way so now it's just got 4 random drives not doing anything. I guess I could just make them their own?

 

[danb35]

What is your current pool configuration? Eighteen devices in any vdev is pretty much guaranteed to be a bad configuration.

 

[KentShades]

root@NAS13:~ # zpool status
pool: Tank
state: ONLINE
scan: scrub repaired 0 in 1 days 12:10:41 with 0 errors on Mon Apr 15 12:10:44 2019
config:

NAME STATE READ WRITE CKS UM
Tank ONLINE 0 0 0
raidz2-0 ONLINE 0 0 0
gptid/a9e3ef33-3f6b-11e8-8cc9-ac1f6b22d0b8 ONLINE 0 0 0
gptid/aae34729-3f6b-11e8-8cc9-ac1f6b22d0b8 ONLINE 0 0 0
gptid/abc7a7e7-3f6b-11e8-8cc9-ac1f6b22d0b8 ONLINE 0 0 0
gptid/acb08839-3f6b-11e8-8cc9-ac1f6b22d0b8 ONLINE 0 0 0
gptid/adaa7299-3f6b-11e8-8cc9-ac1f6b22d0b8 ONLINE 0 0 0
gptid/048944d3-4a76-11e9-8cc9-ac1f6b22d0b8 ONLINE 0 0 0
gptid/af7affc4-3f6b-11e8-8cc9-ac1f6b22d0b8 ONLINE 0 0 0
gptid/b06cddd4-3f6b-11e8-8cc9-ac1f6b22d0b8 ONLINE 0 0 0
gptid/b169f643-3f6b-11e8-8cc9-ac1f6b22d0b8 ONLINE 0 0 0
gptid/b2588431-3f6b-11e8-8cc9-ac1f6b22d0b8 ONLINE 0 0 0
gptid/b351fd60-3f6b-11e8-8cc9-ac1f6b22d0b8 ONLINE 0 0 0
gptid/b445193f-3f6b-11e8-8cc9-ac1f6b22d0b8 ONLINE 0 0 0
gptid/b5466448-3f6b-11e8-8cc9-ac1f6b22d0b8 ONLINE 0 0 0
gptid/b63bed9d-3f6b-11e8-8cc9-ac1f6b22d0b8 ONLINE 0 0 0
gptid/b730e258-3f6b-11e8-8cc9-ac1f6b22d0b8 ONLINE 0 0 0
gptid/b835ffcc-3f6b-11e8-8cc9-ac1f6b22d0b8 ONLINE 0 0 0
gptid/b926d769-3f6b-11e8-8cc9-ac1f6b22d0b8 ONLINE 0 0 0
gptid/ba217deb-3f6b-11e8-8cc9-ac1f6b22d0b8 ONLINE 0 0 0
logs
gptid/10e34359-3f6c-11e8-8cc9-ac1f6b22d0b8 ONLINE 0 0 0
cache
gptid/df5bb405-3f6b-11e8-8cc9-ac1f6b22d0b8 ONLINE 0 0 0

errors: No known data errors

pool: freenas-boot
state: ONLINE
scan: scrub repaired 0 in 0 days 00:00:14 with 0 errors on Thu Apr 11 03:45:14 2019
config:

NAME STATE READ WRITE CKSUM
freenas-boot ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
ada2p2 ONLINE 0 0 0
ada3p2 ONLINE 0 0 0


This would be the current setup.

 

[danb35]

Yes, indeed, that would be a very bad setup. Two or three vdevs would be much better for both performance and redundancy. But there still isn't a good way to add four more disks to the pool.

 

[KentShades]

hmmm, ok so now I need to evacuate this and then change it. Awesome hahah well good lesson.