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Forum Discussion
ReadyNAS Ultra 6 hot swap resync error
Hello, I am running a ReadyNAS Ultra 6 with RAIDiator 4.2.31. I have been running with all 6 disk bays full for years, and I had started to approach the capacity of the RAID array (91%). I had ...
Is HDD1 also a green drive? I have seen drives declared "dead" in OS4.2.x because they failed to spin up as fast as the rest. If HDD1 is now the only green drive, that could be the issue. There certainly does seem to be a big risk of losing the array if you swap out HDD1, but I don't think you have a lot of options. You could try cloning HDD1 to another drive, but there is still some risk there. Just make sure your backup is up to date and hope you don't have to take the time to reestore it.
Thank you for the reply, Sandshark! Strangely, HDD1 is actually a 4TB WD Red drive that I installed within the last year. Bad luck on this early failure while hot swapping another drive, I suppose.
Sadly, I think that you are correct that I don't have many options here. I'll look into cloning HDD1; thanks for the advice. Luckily, I do have a current backup of all data. I'm just not looking forward to spending many days (weeks?) restoring everything.
Cheers,
S
So I ended up swapping out the malfunctioning <1-year-old WD Red 4TB HDD1 and lost the volume. It's OK, because I have backups.
With new HDDs in Bays 1 and 6, I then performed a factory reset to build a new volume and then restored my configuration settings. I started restoring from backup overnight, but I awoke this morning to find that HDD3 has now failed. This is a >5-year-old WD Green 2TB HDD, so it's possibly true (as suspected by Sandshark); however, a bunch of failures at the same time makes me suspicious of a global hardware problem in the NAS. Can someone please suggest any appropriate diagnostics to run to ensure that my NAS hardware is operating properly, before I buy and swap in a new HDD3?
The saga continues... (*sigh*) Thanks for suggestions, everyone.
The green's don't play well in a NAS. They can cause issues, especially when mixed with other drive types. The drive may not even be genuinely dead, but failed to respond quickly enough and was marked dead because of it. But WD warns about potential lower life of the greens in a RAID configuration, so it really could have gone bad. I had similar issued with Seagate "DM" drives that were in a used NAS I bought. They worked fine until I added two enterprise grade (7200RPM) drives. After that, one of them got declared "dead" about once a month (though it was still accessible, as I once had three "dead" in a 6-drive RAID5 and no data was lost).
Thanks a bunch for sharing your experience, Sandshark. This correlates well with what I'm experiencing--Greens worked well for years until I started adding Reds. I actually restarted my NAS this AM after the HDD3 "dead" alert, and HDD3 was recognized again and resynced to the RAID array. Now it looks like it's working properly. But I certainly believe that its response time is just at the threshold of being declared "dead," and I won't be surprised if this is a repeating issue. Sounds like the best course of action is to swap in Reds for all Greens. Thanks again for taking the time to help me.
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