Can't enable LVM and Swap Disk Damage errors

[bhelliom]

Hi,

I apologise for this post as I've seen similar posts but they've had private email replies ...

My N5200 had 4 WD 500GB disks (2 x KS and 2 x AAKS) in RAID10. Both KS disks have failed according to the system, and there is no RAID configured or file shares created now.

I've replaced the failed disks with another 2 AAKS and tried to bring the system back up. I receive the following errors (with and without the 2 new disks in). I'm running the latest firmware.

2008/02/23 15:16:40 N5200 : Swap Disk Damage
2008/02/23 15:16:29 N5200 : The system N5200 is suffering the severe disk problem.
2008/02/23 15:16:22 N5200 : The system N5200 is suffering the severe disk problem.
2008/02/23 15:16:17 N5200 : N5200 boot
2008/02/23 15:16:14 N5200 : Can't enable lvm
2008/02/23 15:16:13 N5200 : mdadm: /dev/md1 has been started with 2 drives (out of 4).
2008/02/23 15:16:13 N5200 : Assemble RAID [md1] from [ /dev/sda2 /dev/sdb2 ]
2008/02/23 15:16:12 N5200 : Can't enable lvm
2008/02/23 15:16:12 N5200 : Assemble RAID warning, try to force assemble RAID
2008/02/23 15:16:11 N5200 : mdadm: /dev/md1 has been started with 2 drives (out of 4).
2008/02/23 15:16:11 N5200 : [Disk sdb] UUID[raid10;8bf17f27:86bf69d3:19f52d0d:662d91cc;Wed Feb 28 19:51:19 2007]
2008/02/23 15:16:11 N5200 : [Disk sda] UUID[raid10;8bf17f27:86bf69d3:19f52d0d:662d91cc;Wed Feb 28 19:51:19 2007]
2008/02/23 15:16:11 N5200 : Assemble RAID [md1] from [ /dev/sda2 /dev/sdb2 ]


I would love to recover the data contained on the 2 'original' disks. What can I do to achieve this?

Any help would be most appreciated.

[Thecus - Yvon]

Dear Sir,

Please update to V2.00.04 and sumit a ticket from Thecus Technology Corp. - Thecus eSupport Center , and specify what produce make this issue happen for us to verify and fix for you.

[N5200/N5200PRO]
Latest firmware: v2.00.04
Release note:
Upgrade procedure:
Download link:
FAQ:

[kolkmvd]

Hi,

I have exactly the same error (Can't enable lvm). What did Thecus Support do to resolve this?

[bhelliom]

Hi there,

they couldn't do anything because of the way the raid is created on these devices - I'd apparently lost too many disks (2 out of the 4). I ended up having to replace the disks and create a new raid container - obviously losing any data I hadn't backed up.