[DRBD-user] drbd diskless

[Vaggelis Papastavros]

Dear friends ,

i have installed drbd 9.0.8-1

cat /proc/drbdversion: 9.0.8-1 (api:2/proto:86-112)
GIT-hash: c8bc36701c7c7ffc2c208f620c6d89e4ec265704 build by 
phil at Build64R7, 2017-06-30 15:43:01
Transports (api:15): tcp (1.0.0)

The drbd volume is a cluster resource under pacemaker and suddenly after 
a node reboot the state is diskless .

I check the log files and no split brain situation exists .

I have tried everything (disconnect, detach etc the resource) from the 
documentation without solution.

When i try to manually attach the resource the driver responds with the 
following :

[root at sgw-01 ~]# drbdadm attach customer_vms
0: Failure: (127) Device minor not allocated
additional info from kernel:
unknown minor
Command 'drbdsetup attach 0 /dev/sda2 /dev/sda2 internal 
--on-io-error=detach' terminated with exit code 10

I can't understand the reason for the above situation and how to solve..

Can you help me ?


Sincerely