MSA2012fc Disk channel error

[chingkt]

SAN disk suddenly disappear with Disk channel error. Restart controller help. Need to know the root cause of the problem. Below are the logs.

09-18 17:19:39 68 A941 Both controllers have shut down; no reboot
09-18 17:19:39 83 A940 Other controller state change (shutting down or rebooting); new state = Shutdown
09-18 17:07:18 19 B900 Rescan bus done. Reason Code: 28. Found 12 drives, 1 Drive Enclosure
09-18 17:07:18 19 A939 Rescan bus done. Reason Code: 28. Found 0 drives, 1 Drive Enclosure
C 09-18 17:07:07 3 A938 Vdisk offline: MSA2000, SN: 00c0ffd76e92000039e18f4900000000
W 09-18 17:07:07 44 A937 Unwritable cache data exists for volume (volume: , SN: 00c0ffd76e92000016e28f4901000000) comprising 1% of cache space
C 09-18 17:05:36 314 A936 FRU type: drive, problem: encl 0 deviceID 6. Vendor: SEAGAT Product ID: ST3146356SS , S/N: 3QN0AWC200009919DWKV rev: 0004. Related event ID: 935, type: 8
W 09-18 17:05:36 8 A935 Vdisk MSA2000 drive down (Channel:0 ID:6 SN:3QN0AWC200009919DWKV Encl:0 Slot:6)
W 09-18 17:05:36 1 A934 Vdisk critical: MSA2000, SN: 00c0ffd76e92000039e18f4900000000
C 09-18 17:05:36 314 A933 FRU type: drive, problem: encl 0 deviceID 5. Vendor: SEAGAT Product ID: ST3146356SS , S/N: 3QN0D99A00009919S1H9 rev: 0004. Related event ID: 932, type: 8
W 09-18 17:05:36 8 A932 Vdisk MSA2000 drive down (Channel:0 ID:5 SN:3QN0D99A00009919S1H9 Encl:0 Slot:5)
W 09-18 17:05:36 1 A931 Vdisk critical: MSA2000, SN: 00c0ffd76e92000039e18f4900000000
C 09-18 17:05:36 314 A930 FRU type: drive, problem: encl 0 deviceID 5. Vendor: SEAGAT Product ID: ST3146356SS , S/N: 3QN0D99A00009919S1H9 rev: 0004. Related event ID: 929, type: 8
W 09-18 17:05:36 8 A929 Vdisk MSA2000 drive down (Channel:0 ID:5 SN:3QN0D99A00009919S1H9 Encl:0 Slot:5)
09-18 17:04:06 59 A928 Disk channel error (Channel:0 ID:133 SN:3QN0D99A00009919S1H9 Encl:0 Slot:5): Abort Timeout cdb:Rd 0cfad600 0080

[Михаил Шапошников]

I have the same problem. You found the answer?

[Михаил Шапошников]

10-02 05:48:03 19 A523 Rescan bus done. Reason Code: 28. Found 0 drives, 1 Drive Enclosure
10-02 05:48:03 19 B438 Rescan bus done. Reason Code: 28. Found 6 drives, 1 Drive Enclosure
10-02 05:45:57 59 A522 Disk channel error (Channel:0 ID:15 SN:3CL910C300 Encl:0 Slot:15): Abort Timeout cdb:1c010200b000