allegiance
Explorer
- Joined
- Jan 4, 2013
- Messages
- 53
I have inherited a FreeNAS 8.3.2 system with a single zpool on it. Unfortunately, it seems to be an odd setup. As far as I can tell, it consists of two vdevs, a raidz2 and a single-drive stripe. Below is the output from zpool status:
pool: Shared
state: ONLINE
scan: resilvered 1.60T in 73h31m with 0 errors on Sun Aug 10 13:19:32 2014
config:
NAME STATE READ WRITE CKSUM
Shared ONLINE 0 0 0
raidz2-0 ONLINE 0 0 0
gptid/85ad335c-5c27-11e2-9d8a-f46d042cc584 ONLINE 0 0 0
gptid/85fb1270-5c27-11e2-9d8a-f46d042cc584 ONLINE 0 0 0
gptid/8638a789-5c27-11e2-9d8a-f46d042cc584 ONLINE 0 0 0
gptid/867d4b60-5c27-11e2-9d8a-f46d042cc584 ONLINE 0 0 0
gptid/86be2c3e-5c27-11e2-9d8a-f46d042cc584 ONLINE 0 0 0
gptid/870502bf-5c27-11e2-9d8a-f46d042cc584 ONLINE 0 0 0
gptid/8745e469-5c27-11e2-9d8a-f46d042cc584 ONLINE 0 0 0
gptid/2ba8062f-1e4a-11e4-b147-f46d042cc584 ONLINE 0 0 0
gptid/87c76f9a-5c27-11e2-9d8a-f46d042cc584 ONLINE 0 0 0
gptid/885f0b5f-5c27-11e2-9d8a-f46d042cc584 ONLINE 0 0 0
gptid/88ff45ca-5c27-11e2-9d8a-f46d042cc584 ONLINE 0 0 0
gptid/89a667ff-5c27-11e2-9d8a-f46d042cc584 ONLINE 0 0 0
gptid/8a446af1-5c27-11e2-9d8a-f46d042cc584 ONLINE 0 0 0
gptid/da39d3e5-c48b-11e2-bb6d-f46d042cc584 ONLINE 0 0 0
errors: No known data errors
The last drive is shown as a stripe in the GUI.
My fear is that if that single drive dies, my whole zpool is lost. As far as I know, I cannot simple remove it from the zpool, so I thought the next best thing would be to make it a 2-disk mirror. I've tried so by adding a new hard drive to that machine and trying the following:
zpool create Shared mirror gptid/da39d3e5-c48b-11e2-bb6d-f46d042cc584 gptid/85ad335c-5c27-11e2-9d8a-f46d042cc584
invalid vdev specification
use '-f' to override the following errors:
/dev/gptid/da39d3e5-c48b-11e2-bb6d-f46d042cc584 is part of active pool 'Shared'
Is there anyway to remedy this short of backing up all the data and creating the zpool from scratch? I'd be happy with either making the single-disk stripe a mirror stripe or removing it from the zpool altogether. Or are my fears of that "single disk" unfounded?
pool: Shared
state: ONLINE
scan: resilvered 1.60T in 73h31m with 0 errors on Sun Aug 10 13:19:32 2014
config:
NAME STATE READ WRITE CKSUM
Shared ONLINE 0 0 0
raidz2-0 ONLINE 0 0 0
gptid/85ad335c-5c27-11e2-9d8a-f46d042cc584 ONLINE 0 0 0
gptid/85fb1270-5c27-11e2-9d8a-f46d042cc584 ONLINE 0 0 0
gptid/8638a789-5c27-11e2-9d8a-f46d042cc584 ONLINE 0 0 0
gptid/867d4b60-5c27-11e2-9d8a-f46d042cc584 ONLINE 0 0 0
gptid/86be2c3e-5c27-11e2-9d8a-f46d042cc584 ONLINE 0 0 0
gptid/870502bf-5c27-11e2-9d8a-f46d042cc584 ONLINE 0 0 0
gptid/8745e469-5c27-11e2-9d8a-f46d042cc584 ONLINE 0 0 0
gptid/2ba8062f-1e4a-11e4-b147-f46d042cc584 ONLINE 0 0 0
gptid/87c76f9a-5c27-11e2-9d8a-f46d042cc584 ONLINE 0 0 0
gptid/885f0b5f-5c27-11e2-9d8a-f46d042cc584 ONLINE 0 0 0
gptid/88ff45ca-5c27-11e2-9d8a-f46d042cc584 ONLINE 0 0 0
gptid/89a667ff-5c27-11e2-9d8a-f46d042cc584 ONLINE 0 0 0
gptid/8a446af1-5c27-11e2-9d8a-f46d042cc584 ONLINE 0 0 0
gptid/da39d3e5-c48b-11e2-bb6d-f46d042cc584 ONLINE 0 0 0
errors: No known data errors
The last drive is shown as a stripe in the GUI.
My fear is that if that single drive dies, my whole zpool is lost. As far as I know, I cannot simple remove it from the zpool, so I thought the next best thing would be to make it a 2-disk mirror. I've tried so by adding a new hard drive to that machine and trying the following:
zpool create Shared mirror gptid/da39d3e5-c48b-11e2-bb6d-f46d042cc584 gptid/85ad335c-5c27-11e2-9d8a-f46d042cc584
invalid vdev specification
use '-f' to override the following errors:
/dev/gptid/da39d3e5-c48b-11e2-bb6d-f46d042cc584 is part of active pool 'Shared'
Is there anyway to remedy this short of backing up all the data and creating the zpool from scratch? I'd be happy with either making the single-disk stripe a mirror stripe or removing it from the zpool altogether. Or are my fears of that "single disk" unfounded?