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Forum Discussion
HD dead in one NAS, alive in another?
I helped a client procure a ReadyNAS Ultra 2.
It has 2x2TB Seagate ST31000520AS drives.
I recently got an email alert from the NAS that one of the drives was dead. I drove over, picked it up, plugged it into my PC via a USB/SATA converter, formatted it to NTFS, ran all the SeaTools tests and they came back clean.
I then popped it into a ReadyNAS Duo that I have here, and it ran just fine for almost two weeks, not a single error or problem.
So I take it back to my client, put it back in her ReadyNAS Ultra....within a few days I get an email alert that there's a SMART error.
WTF??
Any ideas? Should I just RMA the drive to Seagate & not worry about it anymore? What would cause one ReadyNAS to say it's dead/SMART errors, and the DUO says its just fine?
Thanks
It has 2x2TB Seagate ST31000520AS drives.
I recently got an email alert from the NAS that one of the drives was dead. I drove over, picked it up, plugged it into my PC via a USB/SATA converter, formatted it to NTFS, ran all the SeaTools tests and they came back clean.
I then popped it into a ReadyNAS Duo that I have here, and it ran just fine for almost two weeks, not a single error or problem.
So I take it back to my client, put it back in her ReadyNAS Ultra....within a few days I get an email alert that there's a SMART error.
WTF??
Any ideas? Should I just RMA the drive to Seagate & not worry about it anymore? What would cause one ReadyNAS to say it's dead/SMART errors, and the DUO says its just fine?
Thanks
7 Replies
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- You may call the support for help.
- I'm having a similar issue again - one of my clients has a ReadyNAS Ultra 6, one of the Seagate ST32000542AS drives is reporting increasing SMART errors. Of course this particular drive is on the HCL for that NAS model...
I have pulled the drive, formatted it to NTFS, connected it to another computer with a USB/SATA cable and tests so far are coming back clean....WTF?
Any ideas?
And I know I can call support, but that's why we have these forums, thanks. :roll: - I don't think you can test the drive using SeaTools via USB. I would suggest you hook the drive up to an internal SATA port and run SeaTools on the drive.
What SMART errors did you get? Reallocated Sectors? ATA Errors? Something else? - Here is the error I've been getting emailed to me from the NAS:
Reallocated sector count has increased in the last day.
Disk 1:
Previous count: 95
Current count: 108
Growing SMART errors indicate a disk that may fail soon. If the errors continue to increase, you should be prepared to replace the disk. - Once sectors are reallocated they're marked to not be used. So a subsequent check of the health of the drive will not check them and may not detect any problem. A large reallocated sector count is a sign that a disk may be failing. How close you are to the failure is uncertain.
With the disk in an Ultra there is a "Disk Test" boot option that you can run: http://www.readynas.com/kb/faq/boot/how_do_i_use_the_boot_menu
Whilst not as good as SeaTools, the long SMART offline test is the next best thing. Far more thorough than the daily short online SMART check.
You may wish to open a tech support case to get some expert assistance (they can look at logs at whole of SMART info for the drive). - But I reformatted the drive to NTFS....will that still go undetected?
I will try the disk test boot option when I replace the drive into the NAS and after it syncs back up, and then may call tech support....not sure what good it'll do, the drive either works fine or doesn't, right?
I just bought it, so should be able to easily RMA to Seagate...
Also, all data is backed up to USB and also ReadyNAS Vault, so we're covered. :)
Thank you for your help! DrJones wrote: But I reformatted the drive to NTFS....will that still go undetected?
Yes, once a sector is marked as reallocated it won't be read. It's not used. The filesystem on top is irrelevant to this.DrJones wrote:
I will try the disk test boot option when I replace the drive into the NAS and after it syncs back up, and then may call tech support....not sure what good it'll do, the drive either works fine or doesn't, right?
Drives can show signs of failing before they actually go dead. It's not as black and white as you say.DrJones wrote:
I just bought it, so should be able to easily RMA to Seagate...
I would be inclined to do this. Your reallocated sector count is quite high.
Here's a suggestion from bollar:bollar wrote:
What I would do is buy another drive and send the bad drive to Seagate for replacement and I would use the following code: 6FD1A1AE RAID system blocked SeaTools from testing the drive. When the replacement drive returns (takes about a week), I would set it aside as a spare for when a future drive fails.DrJones wrote:
Also, all data is backed up to USB and also ReadyNAS Vault, so we're covered. :)
Good.
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