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NAS fell and hit the ground...
ReadyNAS NV+, with four 2tb drives. The shelf it was on in the basement collapsed, and NAS hit the concrete floor. At least 3 of the 4 drives had popped out upon impact (still in their slots, but h...
Yes it is RAIDX.. Does a hung check-fs indicate a drive failure? Won't I lose the array if I picked the wrong one to pull out? Or can it be done in a read-only type mode?
pourpain wrote:
Yes it is RAIDX.. Does a hung check-fs indicate a drive failure? Won't I lose the array if I picked the wrong one to pull out?
Possible there is drive damage. If you start with the NAS powered down you can boot up with any drive removed. Make sure the NAS is powered down before you try again with a different drive.
pourpain wrote:
Or can it be done in a read-only type mode?
You unfortunately can't boot up read-only, but you can boot up skipping the file system check. The details depends on exactly which NAS hardware you have. Does your system run 4.1.x firmware or 5.3.x?
It is older 4.1 unit. It stayed at 64% all day, unit was hung up. So I unplugged and trying checkfs again now. I see the boot menu if I hold the power button, so I know how to boot and bypass checkfs if that is advisable. Trying to be careful, and recover without losing data (i can reload/recover if required, but it will take weeks... hoping to avoid that).
Editing to ask questions:
1) Should I attempt boot and bypass checkfs first? Or attempt boot with 3 drives first? I'm guessing 'bypass checkfs' is the safer option.
2) i see in documentation, the factory reset option will do a 5 minute disk test. Then go into a 10 minute wait period, where I can exit back out. Is this a good option to try first? I don't see a way to do a sort of disk test otherwise.
Update... I got it to boot by bypassing the checkfs, and I am able to access the data. I got an alert for Disk 3 showing SMART errors, so far the other 3 do not show errors:
Reallocated sector count has increased in the last day. Disk 3: Previous count: 0 Current count: 2 ATA error count has increased in the last day. Disk 3: Previous count: 0 Current count: 1622 Growing SMART errors indicate a disk that may fail soon. If the errors continue to increase, you should be prepared to replace the disk.
What can I do now to complete the 'checkfs', and to test each disk individually? I will monitor #3 but probably order a replacement. Meanwhile, will keep copying and saving off what I can (I backup some of it, but my USB drive isn't big enough for everything!).
pourpain wrote:
Reallocated sector count has increased in the last day. Disk 3: Previous count: 0 Current count: 2 ATA error count has increased in the last day. Disk 3: Previous count: 0 Current count: 1622
I think this drive has failed, and needs to be replaced. It's also possible that the sata connector on the NAS has gotten damaged, or some mechanical damage has resulted in the NAS not getting a solid connection to the drive.
The best way to diagnose this is to connect the drive to a Windows PC (either sata or with a USB adapter/dock) and test it with vendor tools - lifeguard for western digital, and seatools for seagate. You'd want to do this with the NAS powered down.
I'd test all the disks this way, but the one showing errors is obviously the one to test first.
pourpain wrote:
What can I do now to complete the 'checkfs', ... (I backup some of it, but my USB drive isn't big enough for everything!).
I wouldn't complete the check - attempting to repair the file system might cost you more data. Instead I'd copy off all the data, do a factory default, and then restore all the data from backup. Obviously that will require investing in another USB drive - but you really should have a backup plan in place anyway. You were actually quite lucky that the damage seems to be slight.
The fastest way to back up your data is to do it over the network to a USB drive connected to a PC. Even wifi speeds are faster than the USB performance of your particular NAS. But ethernet will probably be faster.
You could also use cloud backup, though whether that is practical depends on your internet speed. Google offers 2 TB of storage for $10/month in the US. Not sure what they'd charge for more storage. Backblaze charges are similar ($5/TB for storage), but they also add a download charge of $10 per TB downloaded.
pourpain wrote:
It is older 4.1 unit.
It might be time to consider replacement. It's at least 9 years old, and likely older.
There are some challenges with the legacy NAS. Being limited to SMB 1 is one of them - since both Microsoft and Apple are dropping that. A newer issue (still in process) is that the browsers are dropping support for the out-dated TLS protocol that your NAS uses. So at some point you'll either be unable to access the web interface, or you'll need to keep an old browser somewhere (and make sure that browser never auto-updates).
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