We have a weird issue with our ZFS pool and COMSTAR. The pool shows online with 
no errors, everything looks good but when we try to access zvols shared out 
with COMSTAR, windows reports that the devices have bad blocks. Everything has 
been working great until last night and no changes have been done to this 
system in weeks. We are really hoping we can get our data back from this 
system. The 3 volumes that start with CV are shared with a server called CV, 
likewise with DPM.
The drives are connected to the opensolaris box with Fibrechannel and we are 
also using Fibrechannel in target mode for the host side.

opensolaris b134

ad...@comstar2:~$ zpool status
  pool: pool_1
 state: ONLINE
 scrub: scrub in progress for 0h0m, 0.01% done, 93h49m to go
config:

        NAME                                        STATE     READ WRITE CKSUM
        pool_1                                      ONLINE       0     0     0
          raidz2-0                                  ONLINE       0     0     0
            c12t60050CC000F01A8E000000000000007Dd0  ONLINE       0     0     0
            c12t60050CC000F01A8E000000000000007Ed0  ONLINE       0     0     0
            c12t60050CC000F01A8E000000000000007Fd0  ONLINE       0     0     0
            c12t60050CC000F01A8E0000000000000080d0  ONLINE       0     0     0
            c12t60050CC000F01A8E0000000000000081d0  ONLINE       0     0     0
          raidz2-1                                  ONLINE       0     0     0
            c12t60050CC000F01A8E0000000000000082d0  ONLINE       0     0     0
            c12t60050CC000F01A8E0000000000000083d0  ONLINE       0     0     0
            c12t60050CC000F01A8E0000000000000084d0  ONLINE       0     0     0
            c12t60050CC000F01A8E0000000000000085d0  ONLINE       0     0     0
            c12t60050CC000F01A8E0000000000000086d0  ONLINE       0     0     0
          raidz2-2                                  ONLINE       0     0     0
            c12t60050CC000F01A8E0000000000000087d0  ONLINE       0     0     0
            c12t60050CC000F01A8E0000000000000088d0  ONLINE       0     0     0
            c12t60050CC000F01A8E0000000000000089d0  ONLINE       0     0     0
            c12t60050CC000F01A8E000000000000008Ad0  ONLINE       0     0     0
            c12t60050CC000F01A8E000000000000008Bd0  ONLINE       0     0     0
          raidz2-3                                  ONLINE       0     0     0
            c12t60050CC000F01A8E000000000000008Cd0  ONLINE       0     0     0
            c12t60050CC000F01A8E000000000000008Dd0  ONLINE       0     0     0
            c12t60050CC000F01A8E000000000000008Ed0  ONLINE       0     0     0
            c12t60050CC000F01A8E000000000000008Fd0  ONLINE       0     0     0
            c12t60050CC000F01A8E0000000000000090d0  ONLINE       0     0     0
          raidz2-4                                  ONLINE       0     0     0
            c12t60050CC000F01A8E0000000000000091d0  ONLINE       0     0     0
            c12t60050CC000F01A8E0000000000000092d0  ONLINE       0     0     0
            c12t60050CC000F01A8E0000000000000093d0  ONLINE       0     0     0
            c12t60050CC000F01A8E0000000000000094d0  ONLINE       0     0     0
            c12t60050CC000F01A8E0000000000000095d0  ONLINE       0     0     0
          raidz2-5                                  ONLINE       0     0     0
            c12t60050CC000F01A8E0000000000000096d0  ONLINE       0     0     0
            c12t60050CC000F01A8E0000000000000097d0  ONLINE       0     0     0
            c12t60050CC000F01A8E0000000000000098d0  ONLINE       0     0     0
            c12t60050CC000F01A8E0000000000000099d0  ONLINE       0     0     0
            c12t60050CC000F01A8E000000000000009Ad0  ONLINE       0     0     0
          raidz2-6                                  ONLINE       0     0     0
            c12t60050CC000F01A8E000000000000009Bd0  ONLINE       0     0     0
            c12t60050CC000F01A8E000000000000009Cd0  ONLINE       0     0     0
            c12t60050CC000F01A8E000000000000009Dd0  ONLINE       0     0     0
            c12t60050CC000F01A8E000000000000009Ed0  ONLINE       0     0     0
            c12t60050CC000F01A8E000000000000009Fd0  ONLINE       0     0     0
          raidz2-7                                  ONLINE       0     0     0
            c12t60050CC000F01A8E00000000000000A0d0  ONLINE       0     0     0
            c12t60050CC000F01A8E00000000000000A1d0  ONLINE       0     0     0
            c12t60050CC000F01A8E00000000000000A2d0  ONLINE       0     0     0
            c12t60050CC000F01A8E00000000000000A3d0  ONLINE       0     0     0
            c12t60050CC000F01A8E00000000000000A4d0  ONLINE       0     0     0
          raidz2-8                                  ONLINE       0     0     0
            c12t60050CC000F01A8E00000000000000A5d0  ONLINE       0     0     0
            c12t60050CC000F01A8E00000000000000A6d0  ONLINE       0     0     0
            c12t60050CC000F01A8E00000000000000A7d0  ONLINE       0     0     0
            c12t60050CC000F01A8E00000000000000A8d0  ONLINE       0     0     0
            c12t60050CC000F01A8E00000000000000A9d0  ONLINE       0     0     0
          raidz2-9                                  ONLINE       0     0     0
            c12t60050CC000F01A8E00000000000000AAd0  ONLINE       0     0     0
            c12t60050CC000F01AC60000000000000040d0  ONLINE       0     0     0
            c12t60050CC000F01AC60000000000000041d0  ONLINE       0     0     0
            c12t60050CC000F01AC60000000000000042d0  ONLINE       0     0     0
            c12t60050CC000F01AC60000000000000043d0  ONLINE       0     0     0
          raidz2-10                                 ONLINE       0     0     0
            c12t60050CC000F01AC60000000000000044d0  ONLINE       0     0     0
            c12t60050CC000F01AC60000000000000045d0  ONLINE       0     0     0
            c12t60050CC000F01AC60000000000000046d0  ONLINE       0     0     0
            c12t60050CC000F01AC60000000000000047d0  ONLINE       0     0     0
            c12t60050CC000F01AC60000000000000048d0  ONLINE       0     0     0
          raidz2-11                                 ONLINE       0     0     0
            c12t60050CC000F01AC60000000000000049d0  ONLINE       0     0     0
            c12t60050CC000F01AC6000000000000004Ad0  ONLINE       0     0     0
            c12t60050CC000F01AC6000000000000004Bd0  ONLINE       0     0     0
            c12t60050CC000F01AC6000000000000004Cd0  ONLINE       0     0     0
            c12t60050CC000F01AC6000000000000004Dd0  ONLINE       0     0     0
          raidz2-12                                 ONLINE       0     0     0
            c12t60050CC000F01AC6000000000000004Ed0  ONLINE       0     0     0
            c12t60050CC000F01AC6000000000000004Fd0  ONLINE       0     0     0
            c12t60050CC000F01AC60000000000000050d0  ONLINE       0     0     0
            c12t60050CC000F01AC60000000000000051d0  ONLINE       0     0     0
            c12t60050CC000F01AC60000000000000052d0  ONLINE       0     0     0
          raidz2-13                                 ONLINE       0     0     0
            c12t60050CC000F01AC60000000000000053d0  ONLINE       0     0     0
            c12t60050CC000F01AC60000000000000054d0  ONLINE       0     0     0
            c12t60050CC000F01AC60000000000000055d0  ONLINE       0     0     0
            c12t60050CC000F01AC60000000000000056d0  ONLINE       0     0     0
            c12t60050CC000F01AC60000000000000057d0  ONLINE       0     0     0
          raidz2-14                                 ONLINE       0     0     0
            c12t60050CC000F01AC60000000000000058d0  ONLINE       0     0     0
            c12t60050CC000F01AC60000000000000059d0  ONLINE       0     0     0
            c12t60050CC000F01AC6000000000000005Ad0  ONLINE       0     0     0
            c12t60050CC000F01AC6000000000000005Bd0  ONLINE       0     0     0
            c12t60050CC000F01AC6000000000000005Cd0  ONLINE       0     0     0
          raidz2-15                                 ONLINE       0     0     0
            c12t60050CC000F01AC6000000000000005Dd0  ONLINE       0     0     0
            c12t60050CC000F01AC6000000000000005Ed0  ONLINE       0     0     0
            c12t60050CC000F01AC6000000000000005Fd0  ONLINE       0     0     0
            c12t60050CC000F01AC60000000000000060d0  ONLINE       0     0     0
            c12t60050CC000F01AC60000000000000061d0  ONLINE       0     0     0
          raidz2-16                                 ONLINE       0     0     0
            c12t60050CC000F01AC60000000000000062d0  ONLINE       0     0     0
            c12t60050CC000F01AC60000000000000063d0  ONLINE       0     0     0
            c12t60050CC000F01AC60000000000000064d0  ONLINE       0     0     0
            c12t60050CC000F01AC60000000000000065d0  ONLINE       0     0     0
            c12t60050CC000F01AC60000000000000066d0  ONLINE       0     0     0
          raidz2-17                                 ONLINE       0     0     0
            c12t60050CC000F01AC60000000000000067d0  ONLINE       0     0     0
            c12t60050CC000F01AC60000000000000068d0  ONLINE       0     0     0
            c12t60050CC000F01AC60000000000000069d0  ONLINE       0     0     0
            c12t60050CC000F01AC6000000000000006Ad0  ONLINE       0     0     0
            c12t60050CC000F01AC6000000000000006Bd0  ONLINE       0     0     0
        spares
          c12t60050CC000F01A8E00000000000000ABd0    AVAIL   
          c12t60050CC000F01A8E00000000000000ACd0    AVAIL

ad...@comstar2:~# zfs list
NAME                      USED  AVAIL  REFER  MOUNTPOINT
pool_1                   47.2T   348K  37.5K  /pool_1
pool_1/CV_BACKUPS         212G   348K   212G  -
pool_1/CV_DEDUP          18.7T   348K  18.7T  -
pool_1/CV_FULL           9.36T   348K  9.36T  -
pool_1/DPM_FULL          18.9T   348K  18.9T  -
-- 
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