Disk in "Known" state means that disk is part of filesystem but not all disks which create the filesystem are online.
sysadmin@dd-01# disk show state
Enclosure Disk
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
--------- ----------------------------------------------
1 . . . s
2 K K K K K K K K v K K K K K K
3 K K K K K K K K K K K K K K v
4 K K K K K K K K K K K K K K v
5 K K K K K K K K K K K K K K v
--------- ----------------------------------------------
Legend State Count
------ --------------- -----
. In Use Disks 3
s Spare Disks 1
v Available Disks 4
K Known Disks 56
------ --------------- -----
Total 64 disks
In Known state you cannot fail/ unfail the disk
sysadmin@dd-01# disk fail 2.1
**** Disk 2.1 is not
in a valid state: can neither fail nor unfail.
I have not found any procedure to resolve this issue while some disks/ enclosures are missed from filesystem.
In my situation I have to power on all disks shelves, this allowed me to destroy filesyetem.
sysadmin@dd-01# filesys status
The filesystem is disabled and shutdown.
sysadmin@dd-01# filesys destroy
The "filesys destroy" command irrevocably destroys all data in
all the MTrees, including all virtual tapes, archive units and replication contexts.
The 'filesys destroy' operation will take about 10-11 minutes.
File access is disabled during this process.
Are you sure? (yes|no) [no]: yes
ok, proceeding.
Please enter sysadmin password to confirm 'filesys destroy':
The filesystem is already disabled.
Destroying the filesystem.
The filesystem has been destroyed.
sysadmin@dd-01# filesys status
The filesystem doesn't exist.
Then all disk changed status to "Available".
sysadmin@dd-01# disk show state
Enclosure Disk
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
--------- ----------------------------------------------
1 . . . s
2 v v v v v v v v v v v v v v s
3 v v v v v v v v v v v v v v s
4 v v v v v v v v v v v v v v s
5 v v v v v v v v v v v v v s v
6 v v v v v v v v v v v v v v s
7 v v v v v v v v v v v v v v s
8 v v v v v v v v v v v v v v s
9 v v v v v v v v v v v v s v v
10 v v v v v v v v v v v v v v s
11 v v v v v v v v v v v v v v s
12 v v v v v v v v v v v v v v s
--------- ----------------------------------------------
Legend State Count
------ --------------- -----
. In Use Disks 3
s Spare Disks 12
v Available Disks 154
------ --------------- -----
Total 169 disks
At this point I was able to remove unwanted disk shelves and create new, smaller filesystem.
sysadmin@dd-01# disk show state
Enclosure Disk
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
--------- ----------------------------------------------
1 . . . s
2 v v v v v v v v v v v v v v v
3 v v v v v v v v v v v v v v v
4 v v v v v v v v v v v v v v v
5 v v v v v v v v v v v v v v v
--------- ----------------------------------------------
Legend State Count
------ --------------- -----
. In Use Disks 3
s Spare Disks 1
v Available Disks 60
------ --------------- -----
Total 64 disks
sysadmin@dd-01# filesys create
A filesystem of approximate size 129.97 TiB will be created.
Do you want to continue? (yes|no) [yes]: yes
ok, continuing.
This will take 5 - 10 minutes.
Provisioning storage...
########################################### [100%]
Initializing filesystem...
########################################### [100%]
snapshot schedules deleted
You now have a freshly initialized filesystem.
Enable the filesystem using 'filesys enable'.
sysadmin@dd-01# filesys enable
Please wait.....................
The filesystem is now enabled.
sysadmin@dd-01# filesys show space
Active Tier:
Resource Size GiB Used GiB Avail GiB Use% Cleanable GiB
---------------- -------- -------- --------- ---- -------------
/data: pre-comp - 0.0 - - -
/data: post-comp 129175.9 0.0 129175.9 0% 0.0
/ddvar 308.1 20.3 272.1 7% -
---------------- -------- -------- --------- ---- -------------
