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Replacing disk in a single drive ReadyNAS 102
ReadyNAS 102 with a single 4TB WD drive was having some quirks after about 1.5 years. NAS says drive is healthy, WD Diags from a desktop says bad sectors. I have a replacement drive but I am concer...
You can run the drive test from the GUI.
Select "volumes", then the settings wheel, and then "volume schedule". One of the choices you can schedule is "disk test".
It really should also be on the main settings wheel, not sure how that got overlooked.
Ok, further reading shows that there is a disk test but evidently it requires physical access to the unit and pressing buttons to initiate it. I suppose that's better than nothing but I have these units out in the field and it would really be nice to perform such diagnostics remotely. If anyone does find that there is a way to initiate the test via the GUI I would really appreciate hearing about it. Thank you.
You can run the drive test from the GUI.
Select "volumes", then the settings wheel, and then "volume schedule". One of the choices you can schedule is "disk test".
It really should also be on the main settings wheel, not sure how that got overlooked.
Bingo! Got it, thank you. My issue was that I didn't notice the settings wheel on the Volumes page. I blame old age. Thank you.
Definitely time to consider adding a 2nd drive to move to RAID 1. If this is a client's NAS then make sure you have quoted up to cover yourself in case of drive failure.
Definitely time? Why? This is a backup device, not a server. I don't see the value of internal mirroring on a small office backup device; money would be better spend elsewhere. For example I prefer to make redundant backups to different backup systems. This NAS drive is one of three backups - two local, one offsite, all monitored daily for functionality (which is how I detected this issue). If one fails it is ulikely the other backups would be impacted. At least that's my opinion.
Grill-n-Chill wrote:
This NAS drive is one of three backups - two local, one offsite, all monitored daily for functionality (which is how I detected this issue). If one fails it is ulikely the other backups would be impacted. At least that's my opinion.
I agree that two independent local backups trumps RAID-1.
I was not aware this was purely a backup device, I made the error of assuming that this would be a production device. Therefore my recommendation would have made good sense. In that it is one of multiple backups, yeah no problem. JBOD is fine.
Also, backups shouldn't "trump" a RAID setup - RAID is not a backup and the two shouldn't be compared. RAID is a failsafe to minimise downtime in case of drive failure, but it won't bring back that Excel spreadsheet the receptionist accidentally deleted last week.
I think StephenB may have been implying that two independent backup devices trump a single RAID backup device... as it applies to my scenario with backup devices, not file sharing.
Personally I make it a point to never trust backups. The real game changer for us was when we started monitoring functionality of the backups and the health of the backup device hardware for our clients. No more nasty surprises.
I think we have come, in a round-a-bout kind of way, to find that we are all in agreeance with each other! Definitely multiple backups (including at least one offsite).
I also offer monitoring as a service, definitely less surprises to those clients.
Grill-n-Chill wrote:
I think StephenB may have been implying that two independent backup devices trump a single RAID backup device... as it applies to my scenario with backup devices, not file sharing.
Correct, that is exactly what I meant.
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