"the primary GPT table is corrupt or invalid" on a zvol?

[ericj]

Hey everybody,

i got a strange log messages in my daily security run:

+GEOM: zvol/tank1/appsrv_lun0: the primary GPT table is corrupt or invalid.

+GEOM: zvol/tank1/appsrv_lun0: using the secondary instead -- recovery strongly advised.

I read a lot about this error, but all found where physical disks. But mine is a zvol which is in use as a iscsi-lun connected to a windows 2008r2 server. this server crashed yesterday, does this has something to do with the message?

here's my config:

FreeNAS-9.1.0-RELEASE-x64 (dff7d13), 32GB RAM, Intel(R) Xeon(R) CPU E3-1240 V2 @ 3.40GHz.
This are my pools:

Code:

  pool: tank1
state: ONLINE
  scan: scrub repaired 0 in 0h36m with 0 errors on Sun Sep 29 00:36:26 2013
config:
 
        NAME                                            STATE    READ WRITE CKS                  UM
        tank1                                          ONLINE      0    0                        0
          raidz1-0                                      ONLINE      0    0                        0
            gptid/64d92d94-7437-11e2-bc3f-001e676f4401  ONLINE      0    0                        0
            gptid/6547742f-7437-11e2-bc3f-001e676f4401  ONLINE      0    0                        0
            gptid/65b5b325-7437-11e2-bc3f-001e676f4401  ONLINE      0    0                        0
 
errors: No known data errors
 
  pool: tank2
state: ONLINE
  scan: scrub repaired 0 in 5h56m with 0 errors on Sun Sep 29 05:56:04 2013
config:
 
        NAME                                            STATE    READ WRITE CKS                  UM
        tank2                                          ONLINE      0    0                        0
          raidz1-0                                      ONLINE      0    0                        0
            gptid/78aaf9b1-7437-11e2-bc3f-001e676f4401  ONLINE      0    0                        0
            gptid/78f501e8-7437-11e2-bc3f-001e676f4401  ONLINE      0    0                        0
            gptid/793ec36f-7437-11e2-bc3f-001e676f4401  ONLINE      0    0                        0
            gptid/798739dd-7437-11e2-bc3f-001e676f4401  ONLINE      0    0                        0
        logs
          mirror-1                                      ONLINE      0    0                        0
            da7                                        ONLINE      0    0                        0
            da8                                        ONLINE      0    0                        0

Thanks in advance,
Eric

 

[jpaetzel]

You're using iSCSI, which is just passing through the zvol to windows. Windows is putting a GPT label on the iSCSI drive, which because it's a passthrough the FreeNAS box understands. You could do mount -t ntfs /dev/zvol/tank1/appsrv_lun0 as well, although I wouldn't recommend that!

But regardless, the GPT label that windows is using on it's disk has gotten damaged. The host OS can see that, but I wouldn't recommend trying to do anything to it outside of the VM that is using that disk. In other words, you the windows disk management tools to fix this.

 

[ericj]

thanks a lot, i'll do that.