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PostPosted: Fri Nov 01, 2013 7:24 pm 
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Joined: Fri Nov 01, 2013 11:47 am
Posts: 1
Hi,

Apologies if this in the wrong section - model is actually TS-XE8.0TL/R5-EU - this seemed the nearest description!

This morning I was just get ready for work when I had an unwanted telephone call from the office ... No one could use the V: drive - a shared drive on the Buffalo NAS.

The system was configured
HD1 - Hot Standby
HD2 - Array1 (Raid 5, disk 1)
HD3 - Array1 (Raid 5, disk 3)
HD4 - Array1 (Raid 5, disk 2)
The strange order being due to a disk problem in July, and new spare put in/configured.
The system is protected by UPS - not a power failure.

Remoteing in I discovered that the following had happened (in brief, and times are only approx) ...
2:16 ioerror
2:19 HD2 Error - faulty, rebuilt started on HD1 (Hot Standby) [that's what it's for]
2:22 HD1 Error - faulty [system degraded but we can still limp, and we do have a spare spare, but needs to be put in and configured]
2:23 HD3 Error - faulty [Uh-oh, where's the fan]
2:24 HD4 Error - faulty

(An extract from the syslog is at the bottom)

Now it seems to me (and I could be wrong!) but if all 4 drives fault, then it's probably not the drives, but the interface ??

Is it possible to resurrect the drives (I know what order they were in the raid, and what order they apparently failed. I have managed this before but on a PC based raid, where I was able to configure the interface, and then write it back to the discs, without reformatting the drives.

We are purchasing replacement NAS boxes, and I am thinking of configuring it as per the original just before it failed, shutting down, replacing the drives with the failed ones, and restarting it in the hope that *might* persuade them, alternatively looking at getting a number of caddies and a large driver and seeing if I can recover with UFS explorer as per other comments / threads I have written. But I have to admit that I am extremely nervous, especially as I have discovered the last backup was last weekend, and that it didn't include both shared drives on the raid array !

Your thoughts (and best wishes) much appreciated.

SteveTR

Syslog extract: ...
Code:
Nov  1 02:15:16 claycross hdd_wakeup: Disk(disk1) rediscoverd : Status (standby)
Nov  1 02:16:14 claycross hdd_remove: Disk(disk1) removed : Status (standby)
Nov  1 02:16:28 claycross kernelmon: cmd=ioerr sdb WRITE 12003200 1
Nov  1 02:16:32 claycross twonky: Media Server script is begun. type=stop
Nov  1 02:16:32 claycross twonky: stop Media Server
Nov  1 02:16:37 claycross linkstation: DWARF : Killing all dwarves
Nov  1 02:16:58 claycross twonky: Media Server script is begun. type=start
Nov  1 02:16:58 claycross twonky: Media Server setting is off
Nov  1 02:17:51 claycross kernelmon: cmd=raiddegraded 1 8 18
Nov  1 02:19:13 claycross errormon[1624]: Information situation detected! OperationModeI12DEGRADE MODE
Nov  1 02:19:18 claycross errormon[1624]: Error situation detected! HD2 Error    E23HD2 Is Faulty
Nov  1 02:19:37 claycross hdd_wakeup: Disk(disk1) rediscoverd : Status (standby)
Nov  1 02:19:51 claycross hdd_remove: Disk(disk2) removed : Status (array1)
Nov  1 02:20:04 claycross twonky: Media Server script is begun. type=stop
Nov  1 02:20:04 claycross twonky: stop Media Server
Nov  1 02:20:11 claycross linkstation: DWARF : Killing all dwarves
Nov  1 02:20:25 claycross errormon[1624]: Error situation detected! RAID ERROR   E13Array1 Error
Nov  1 02:20:32 claycross twonky: Media Server script is begun. type=start
Nov  1 02:20:32 claycross twonky: Media Server setting is off
Nov  1 02:20:54 claycross errormon[1624]: Error situation detected! HD1 Error    E23HD1 Is Faulty
Nov  1 02:22:56 claycross kernelmon: cmd=ioerr sdc WRITE 12003200 1
Nov  1 02:23:09 claycross errormon[1624]: Information situation cleared! OperationModeI12DEGRADE MODE
Nov  1 02:23:13 claycross errormon[1624]: Error situation cleared! RAID ERROR   E13Array1 Error
Nov  1 02:23:24 claycross errormon[1624]: Error situation cleared! HD1 Error    E23HD1 Is Faulty
Nov  1 02:23:28 claycross kernelmon: cmd=raiddegraded 1 8 34
Nov  1 02:23:33 claycross errormon[1624]: Information situation detected! OperationModeI12DEGRADE MODE
Nov  1 02:23:46 claycross errormon[1624]: Error situation detected! HD3 Error    E23HD3 Is Faulty
Nov  1 02:23:58 claycross hdd_remove: Disk(disk3) removed : Status (array1)
Nov  1 02:24:09 claycross twonky: Media Server script is begun. type=stop
Nov  1 02:24:10 claycross twonky: stop Media Server
Nov  1 02:24:12 claycross kernelmon: cmd=ioerr sdd WRITE 12003200 1
Nov  1 02:24:15 claycross linkstation: DWARF : Killing all dwarves
Nov  1 02:24:15 claycross kernelmon: cmd=raiddegraded 1 8 50
Nov  1 02:24:23 claycross errormon[1624]: Error situation detected! HD4 Error    E23HD4 Is Faulty
Nov  1 02:24:35 claycross errormon[1624]: Error situation detected! RAID ERROR   E13Array1 Error
Nov  1 02:24:35 claycross hdd_remove: Disk(disk4) removed : Status (array1)
Nov  1 02:24:37 claycross twonky: Media Server script is begun. type=start
Nov  1 02:24:37 claycross twonky: Media Server setting is off
Nov  1 02:24:49 claycross kernelmon: cmd=raiddegraded 0 8 17
Nov  1 02:24:50 claycross kernelmon: cmd=raiddegraded 2 8 22
Nov  1 02:24:50 claycross kernelmon: cmd=raiddegraded 10 8 21
Nov  1 02:24:51 claycross twonky: Media Server script is begun. type=stop
Nov  1 02:24:51 claycross kernelmon: cmd=raidrecovery 0 1 1 1 8 1
Nov  1 02:24:51 claycross twonky: stop Media Server
Nov  1 02:24:56 claycross linkstation: DWARF : Killing all dwarves
Nov  1 02:25:00 claycross kernelmon: cmd=raidrecovery 0 0 0 1 8 1
Nov  1 02:25:07 claycross errormon[1624]: Error situation detected! HD1 Error    E23HD1 Is Faulty
Nov  1 02:25:13 claycross kernelmon: cmd=raidrecovery 1 1 1 1 8 2
Nov  1 02:25:19 claycross twonky: Media Server script is begun. type=start
Nov  1 02:25:19 claycross twonky: Media Server setting is off
Nov  1 02:25:25 claycross kernelmon: cmd=raidrecovery 1 0 0 1 8 2
Nov  1 02:25:33 claycross kernelmon: cmd=raidrecovery 10 1 1 1 8 5
Nov  1 02:25:41 claycross linkstation: *** fsaccesstest test /mnt/array1 fail. ***
Nov  1 02:25:42 claycross kernelmon: cmd=raidrecovery 10 0 0 1 8 5
Nov  1 02:25:42 claycross errormon[1624]: Error situation detected! RAID ARRAY1  E14Can't Mount


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