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Forum Discussion
ReadyNAS Duo freezes during resync - what to do?
Hi! I've had my faithful ReadyNAS Duo with 1 TB drives in RaidX config for many years and it's worked like a charm. But this morning I got a message that one of the drives was showing increasing number of errors, and it was suggested that I should resync and prepare to get a replacement drive. So I did just that, started a resync around 14 hours ago and ordered a replacement drive (which I won't get until Monday).
The resync started out as it should, telling me it should take some 4 hours to complete, but that I would be able to use the NAS meanwhile. However, the resync has beeen going on for 14 hours now, and it is not possible to access the NAS in any way. I can hear that it is happily chewing along, but the indication in RAIDar has been unchanged "Resync 12% complete, Time to finish 4 hours 45 minutes" for at least 10 hours.
What should I do? Make a forced (Power Button) reboot? Leave it as is until I get the new drive? And when I get the new drive, should I just pull out the supposedly failing drive in the middle of it's churning, or should I turn off the NAS? Is it important which positions in the NAS the new and the old (functioning) drive have in order to get a rersync after mounting the new drive?
I'm sure somebody has had this problem before, please help!
The resync started out as it should, telling me it should take some 4 hours to complete, but that I would be able to use the NAS meanwhile. However, the resync has beeen going on for 14 hours now, and it is not possible to access the NAS in any way. I can hear that it is happily chewing along, but the indication in RAIDar has been unchanged "Resync 12% complete, Time to finish 4 hours 45 minutes" for at least 10 hours.
What should I do? Make a forced (Power Button) reboot? Leave it as is until I get the new drive? And when I get the new drive, should I just pull out the supposedly failing drive in the middle of it's churning, or should I turn off the NAS? Is it important which positions in the NAS the new and the old (functioning) drive have in order to get a rersync after mounting the new drive?
I'm sure somebody has had this problem before, please help!
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- ...because the data was still on disk 2 as mdgm has explained, it is possible (probable) that if you had put a new disk in slot 1 and booted up with the original disk 2 in slot 2 , that the system would have done a resync and your data would have been ok, at least that what I would have suggested trying.
I agree that the duo, being a NAS, should not have failed in this way. Unfortunately the older sparc units do tend to sometimes fail to cope with single disk failures without creating a major diagnostic problem for the user. - Well, at least I've learnt a lot from the experience. For instance that the two disks in a mirrored RAID system are not identical. And that patience often pays off; I should have waited for the new disk and got a resync done. And finally that the Duo may not be good at holding the user's hand when it fails, but it is not as "non-redundant" as I thought :)
Luckily, I can easily live with the loss of data, since it was "only" a backup :D vandermerwe wrote:
I agree that the duo, being a NAS, should not have failed in this way. Unfortunately the older sparc units do tend to sometimes fail to cope with single disk failures without creating a major diagnostic problem for the user.
Would the current ReadyNAS models (like 102 and 312) behave more "user-friendly" in case of a single disk failure? Maybe I should upgrade........- Yes. These distribute the parity.
I would recommend the 312 which has a faster CPU than the Ultra 2. The 312 has 2 GB RAM.
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