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ReadyNas 526X "Data: dead"?
ReadyNAS 526x
Firmware: 6.9.4 Hotfix 1 (will update to latest version once all this is sorted, or I'm happily convinced I'm not going to have to do a factory default.
6 drives, all WD Reds, in X-RAID.
Alright.. so ran into a goofy issue here, that's VERY similar to the situation reported, here:
https://community.netgear.com/t5/Using-your-ReadyNAS-in-Business/ReadyNAS-in-Lifesupport/td-p/1752587
Had a drive die on me a few days ago, and installed a new drive, this morning. It ran for approximately 9 hours, resyncing.. no issues at all.
However, once completed, the device immediately reports that drive #1 failed, and is now reporting 'data: DEAD' on the front panel. Additionally, the unit is showing red LEDs for the brand new drive, and the drive in slot 1.
Admin panel is up, and is showing drive 2 is good, drive one is showing red. (Again, not what the chasis is reporting, via the LEDs, however.
Resync info reads as such:
| May 25, 2019 08:11:09 PM |
|
Volume: Volume data is resynced. |
| May 25, 2019 08:09:36 PM |
|
Disk: Disk in channel 2 (Internal) changed state from RESYNC to ONLINE. |
| May 25, 2019 08:09:15 PM |
|
Disk: Disk in channel 1 (Internal) changed state from ONLINE to FAILED. |
| May 25, 2019 08:08:54 PM |
|
Volume: Volume data health changed from Degraded to Dead. |
| May 25, 2019 12:28:17 PM |
|
Volume: Resyncing started for Volume data. |
| May 25, 2019 12:27:46 PM |
|
Disk: Disk Model:WDC WD40EFRX-68N32N0 Serial:WD-XXXXXXX was added to Channel 2 of the head unit. |
| May 25, 2019 12:24:33 PM |
|
System: ReadyNASOS background service started. |
| May 25, 2019 12:24:32 PM |
|
Volume: Volume data is Degraded. |
I can still access all files, everything is intact, even went so far as to randomly pull data, and run MD5 checks against it.
Drive channel 0 shows a pending sector count of 20, which makes me think this thing is convinced there's bad sectors on drive one... which is possible, but shouldn't it show the volume as just degraded again?
The timestamps on the resync is what is throwing me for a loop. Literally, within 60 seconds of a completed resync we get a mysterious 'dead' indicator.
I'm willing to concede, that perhaps drive 1 is dealing with some bad sectors, but if the unit is, indeed, 'dead', then data shoud be inacessible.
Currently in the process of grabbing a backup of data off the unit, that we can't easily reproduce. Will provide logs if needed, just seems odd that everything is intact, and everything went 'wrong' right at the end of a resync.
Wow... So I finally got ahold of tech support, and Rene with tech support got the issue sorted out.
They actually discovered another issue with the unit.. here's the full info:
"There was some disputes on the superblock of /dev/sda so we adjusted it to sync with the other working drives. However /dev/sdb has not synced fully so I suggested to remove it from the array. Try to format /dev/sdb and hotplug it to the unit to sync again properly. Once you sync the new formatted drive, the array will be complete again and should not be degraded anymore."
Holy. Cow. My weekend is saved.
Now, then... to start this backup, before I issue a resync. :)
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Update to this... while backing up data off of this device.. THIS has now happened:
May 25, 2019 10:00:47 PM Volume: Volume data health changed from Dead to Redundant. May 25, 2019 08:11:09 PM Volume: Volume data is resynced. May 25, 2019 08:09:36 PM Disk: Disk in channel 2 (Internal) changed state from RESYNC to ONLINE. May 25, 2019 08:09:15 PM Disk: Disk in channel 1 (Internal) changed state from ONLINE to FAILED. May 25, 2019 08:08:54 PM Volume: Volume data health changed from Degraded to Dead. (see attached image) Not exactly sure what's going on, now... oO It appears to have created another volume, with a smaller size... ???
To coin a phrase... there's 3 letter.. a letter W... a letter T... and a letter F.....
- ... and now after rebooting the device, I'm getting 3 'data' volumes, and it's telling me to remove all of the drives. *sigh* dunno what happened here, but wife and daughter are ready to kill me.
- In reference, the final post of this thread details nearly identically what's happened, here. Running WDs Data Lifeguard scans on the drives, right now. So far, nothing showing up.
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