on first day I got this error in the mid of loading operating system this error was in loop.i am using 24 bays storage server. 11 drives raid 6 4tb. 10 drives raid 6 (4tb). 2 drives raid 1 400 gb ssd for operating system and 128 gb ssd for cache.
I reinstall operating system and try to import both pools but I can import only one pool the open pool is only available in create new section or I can see it in disks section.
I am attaching some images of commands results please guide how I can fix this pool issue.
I have no backup. I need some courtesy support we are running an educational institute.
command result.
[root@freenas ~]# zpool import
pool: Nas2
id: 6382034049045392657
state: UNAVAIL
status: The pool was last accessed by another system.
action: The pool cannot be imported due to damaged devices or data.
see:
config:
Nas2 UNAVAIL insufficient replicas
gptid/cc57f754-39c7-11ea-aefc-ac1f6babdd70 ONLINE
5367648509771646265 UNAVAIL cannot open
pool: freenas-boot
id: 11126353426803684003
state: ONLINE
status: Some supported features are not enabled on the pool.
action: The pool can be imported using its name or numeric identifier, though
some features will not be available without an explicit ‘zpool upgrade’.
config:
Wow - you seem to be running a stripe of two disks with no backup. I do hope the data isn’t important - cos unless this is a simple hardware issue like a loose data or power cable your data is toast
A mirror would look like (note the word mirror):
And RAIDz would look like (note the word raidz2):
So your pool nas2 looks like a stripe to me - no parity, no resiliancy. High risk
However I am also guessing this is a very old version of freeNAS (can you confirm?)- so it might be displayed differently - but I doubt it (someone else may chime in)
No, ZFS always displayed the pool information like that. The original poster showed the rest of the command:
[root@freenas ~]# zpool import
pool: Nas2
id: 6382034049045392657
state: UNAVAIL
status: The pool was last accessed by another system.
action: The pool cannot be imported due to damaged devices or data.
see:
config:
Nas2 UNAVAIL insufficient replicas
gptid/cc57f754-39c7-11ea-aefc-ac1f6babdd70 ONLINE
5367648509771646265 UNAVAIL cannot open
So it really is a 2 way stripe without data redundancy.
If the user is unable to restore the UNAVAIL disk, data is almost certainly gone. (Their is a rare chance a recovery service might get some data if the pool had the failed disk added later. Thus, pre-existing data might be recovered. BUT, that is REALLY, REALLY hard to do…)
So:
Option 1: Check the cabling makes the disk reappear - pool recovers
Option 2: Use a very expensive recovery service which may or may not work
Option 3: Give up on whatever data it was and figure out a way to work without it.
To the OP:
In your initial post you mentioned “11 drives raid 6 4tb. 10 drives raid 6 (4tb). 2 drives raid 1 400 gb ssd for operating system and 128 gb ssd for cache”
This was clearly incorrect or incomplete.
There is no such thing as Raid 6 in ZFS (its called RaidZ2)
There is no such thing as Raid 1 in ZFS (mirror)
Are you perhaps using a raid controller - your hardware description was incomplete leaving us guessing (to a certain extent)
System setup information like under NugentS, expand ‘My system specs’, or Neofusion, expand ‘Servers’, for examples of what info we are looking for and the level of details.
Your description in your original post makes me think you are running a RAID controller with Raid6 and TrueNAS has to go through that.
