DSM-G600, DNS-3xx and NSA-220 Hack Forum

aleck · 2007-11-16 02:35:26

From few months back, the blue LED on one of the two disks I have inside DNS-323 (working in mirror RAID) stopped working. I first thought that disk is dead, but there was no alert nor any indication in the Status page in web interface.

Today though, I received two email alerts, warning me that drive has failed. I then checked bought drives by removing one and turning the NAS with just the other inside. Both worked fine, I could access the files on both, things seemed normal.

I have inserted both in the same slot - the one where blue LED was working. The suspicious disk (for which his own blue LED went off) worked fine, but the blue LED was blinking constantly.

After I set everything back to what it was, I received another email alert with the same message. Really puzzled.

Is it really dying or is this a known issue/glitch? Manual/FAQ say that failed disk will show up with amber LED, but this does not happen, at all.
FW is 1.03 from UK D-Link.

Last edited by aleck (2007-11-16 02:45:35)

fordem · 2007-11-16 03:15:53

I've never seen the LED go amber, even with a known defective drive, I have however, seen it flash blue constantly.

There are reports of the LEDs themselves failing, and this may be the reason why one of your LEDs does not light, the fact that you get an email alert PLUS a flashing blue LED suggests that there is some sort of failure.

If I were you here's what I would do - remove the suspect disk and install it in a PC - most disk manufacturers offer a diagnostic utility on their website - Seagate SeaTools, Maxtor PowerMax, etc. - download the utility for your disk, create the bootable CD and boot the PC and test the disk. There will usually be two tests, a quick test, and a thorough test - the quick test usually will not damage your data, but the thorough one will.

mig · 2007-11-16 04:18:13

If you have telnet enabled, you can check the status of the RAID0 volume with

# cat /proc/mdstat

more info: http://dns323.kood.org/forum/p6680-2007 … html#p6680

aleck · 2007-11-20 01:36:52

fordem, I don't have a PC to try it on, all laptops here. The only way I could think of trying is to place just one of the disks in the DNS-323 and power it up. Both disk worked ok in this single mode, random files were accessible etc.

mdstat is this:

Code:

 # cat /proc/mdstat
Personalities : [linear] [raid0] [raid1] 
md0 : active raid1 sda2[1] sdb2[0]
      310383744 blocks [2/2] [UU]
      
unused devices: <none>

All seem ok and there are no more emails from DNS. Still puzzling...

mig · 2007-11-20 02:33:07

That is puzzling...
mdstat shows the disks are O.K., so you have a functioning RAID array.
You should still try to check the disks using the manufactures diagnostics
tools as fordem suggested, that could reveal a problem that would account
for the strange LED/email behavior.

DSM-G600, DNS-3xx and NSA-220 Hack Forum

Announcement

#1 2007-11-16 02:35:26

Hard drive failed...or not?

#2 2007-11-16 03:15:53

Re: Hard drive failed...or not?

#3 2007-11-16 04:18:13

Re: Hard drive failed...or not?

#4 2007-11-20 01:36:52

Re: Hard drive failed...or not?

Code:

#5 2007-11-20 02:33:07

Re: Hard drive failed...or not?

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