Pool showing offline after reboot.

[smitha95]

I updated my FreeNAS server last week to 11.3-U2.1. After the reboot one of my storage pools started to show offline.
Now I see these error and can no longer access the data that was on the drives. The two drives are Mirrored.

Is there a way I can save the data and fix my drives?

Apr 26 12:21:25 freenas umass1: <Seagate Portable, class 0/0, rev 2.10/0.00, addr 4> on usbus1
Apr 26 12:21:25 freenas umass1: SCSI over Bulk-Only; quirks = 0xc101
Apr 26 12:21:25 freenas umass1:5:1: Attached to scbus5
Apr 26 12:21:25 freenas ugen1.3: <Seagate Portable> at usbus1 (disconnected)
Apr 26 12:21:25 freenas umass0: at uhub3, port 2, addr 3 (disconnected)
Apr 26 12:21:25 freenas umass0: detached
Apr 26 12:21:27 freenas ugen1.4: <Seagate Portable> at usbus1 (disconnected)
Apr 26 12:21:27 freenas umass1: at uhub3, port 1, addr 4 (disconnected)
Apr 26 12:21:27 freenas (da0:umass-sim1:1:0:0): got CAM status 0x44
Apr 26 12:21:27 freenas (da0:umass-sim1:1:0:0): fatal error, failed to attach to device
Apr 26 12:21:27 freenas g_access(944): provider da0 has error 6 set
Apr 26 12:21:27 freenas g_access(944): provider da0 has error 6 set
Apr 26 12:21:27 freenas g_access(944): provider da0 has error 6 set
Apr 26 12:21:27 freenas g_access(944): provider da0 has error 6 set
Apr 26 12:21:27 freenas g_access(944): provider da0 has error 6 set
Apr 26 12:21:27 freenas g_access(944): provider da0 has error 6 set
Apr 26 12:21:27 freenas g_access(944): provider da0 has error 6 set
Apr 26 12:21:27 freenas umass1: detached
Apr 26 12:21:40 freenas ugen1.3: <Seagate Portable> at usbus1
Apr 26 12:21:40 freenas umass0 on uhub3
Apr 26 12:21:40 freenas umass0: <Seagate Portable, class 0/0, rev 2.10/0.00, addr 3> on usbus1
Apr 26 12:21:40 freenas umass0: SCSI over Bulk-Only; quirks = 0x0000
Apr 26 12:21:40 freenas umass0:4:0: Attached to scbus4
Apr 26 12:21:42 freenas da0 at umass-sim0 bus 0 scbus4 target 0 lun 0
Apr 26 12:21:42 freenas da0: <Seagate Portable 9300> Fixed Direct Access SPC-4 SCSI device
Apr 26 12:21:42 freenas da0: Serial Number NAA5ZWGZ
Apr 26 12:21:42 freenas da0: 40.000MB/s transfers
Apr 26 12:21:42 freenas da0: 1907729MB (3907029167 512 byte sectors)
Apr 26 12:21:42 freenas da0: quirks=0x2<NO_6_BYTE>
Apr 26 12:21:46 freenas ugen1.4: <Seagate Portable> at usbus1
Apr 26 12:21:46 freenas umass1 on uhub3
Apr 26 12:21:46 freenas umass1: <Seagate Portable, class 0/0, rev 2.10/0.00, addr 4> on usbus1
Apr 26 12:21:46 freenas umass1: SCSI over Bulk-Only; quirks = 0xc101
Apr 26 12:21:46 freenas umass1:5:1: Attached to scbus5
Apr 26 12:21:48 freenas ugen1.4: <Seagate Portable> at usbus1 (disconnected)
Apr 26 12:21:48 freenas umass1: at uhub3, port 1, addr 4 (disconnected)
Apr 26 12:21:48 freenas (da1:umass-sim1:1:0:0): got CAM status 0x44
Apr 26 12:21:48 freenas (da1:umass-sim1:1:0:0): fatal error, failed to attach to device
Apr 26 12:21:48 freenas g_access(944): provider da1 has error 6 set
Apr 26 12:21:48 freenas g_access(944): provider da1 has error 6 set
Apr 26 12:21:48 freenas g_access(944): provider da1 has error 6 set
Apr 26 12:21:48 freenas g_access(944): provider da1 has error 6 set
Apr 26 12:21:48 freenas g_access(944): provider da1 has error 6 set
Apr 26 12:21:48 freenas g_access(944): provider da1 has error 6 set
Apr 26 12:21:48 freenas g_access(944): provider da1 has error 6 set
Apr 26 12:21:48 freenas umass1: detached