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Forum Discussion
Readynas Ultra 4 Plus no valid volume exists #25703630
Help! I had a power failure today, and now I am getting a "no valid volume exists" and cannot access any of the shares on the NAS, although they are listed in Finder on my Mac. However, I cannot acc...
Hi Motto,
Yes it has been escalated from L1 to L2 and L3. I checked your records and found that L3 requries data recovery for the issue you have on the NAS. The L2 tech has not updated you yet, I saw that you ahve already asked for an update. L2 tech who escalated this case is probably not around yet. It seems some thing with the partition is the problem.
Regards,
Thanks for the response. But isn't that the whole purpose of a RAID array . . . to keep your data backed up if there is a failure of a drive? I now need to hire a data recovery person to pull the data off the 4 drives and reformat? Is that a remote service or . .
I still haven't been able to get in touch with someone to explain what is going on . . .
Moto wrote:
Thanks for the response. But isn't that the whole purpose of a RAID array . . . to keep your data backed up if there is a failure of a drive?
As it says in the Ultra user manual:
Note: X-RAID2 does not replace backups. See the article, Preventing Catastrophic Data Loss at http://www.readynas.com/?p=3153.
X-RAID2 keeps your data available through routine disk replacements and also when you are expanding the storage capacity. But it is not enough to keep your data safe.
I do hope you will get your data back without too much cost. I believe the Netgear recovery service is normally done remotely, though I am not certain if they always can do it that way.
Also, I suggest getting a UPS for the NAS.
Thanks, So I need a backup server for my server . . . got it. :( Data recovery is apparently done remotely for $200, but if I get all the data back, I'm happy, I guess. L3 says that the four disk drives have lost all of their partitiions, which must now be recreated, and need data recovery to do that. No one has yet explained to me what could cause 4 disk drives to lose all of their partitions -- a bit of info that I would really like to know, so that I can make sure that I avoid it in the future! So if I get my data back, which is apparently likely, I should line up some cloud storage to back all of the NAS data to every night or whatever?
Its not that uncommon to lose data when the power fails, which is why I suggested the UPS. That allows the NAS to do a normal shutdown if the power failure lasts long enough to drain the UPS battery.
There are several ways to approach backup
-use USB drives
-get a second NAS. For instance an RN104, and back up to that. Perhaps use jbod on the backup to reduce the cost.
-back up to dedicated hard drives inside a desktop PC
-use a cloud backup that supports NAS.
I've used the last three (currently backing up my pro-6 daily to smaller NAS, and using CrashPlan for disaster recovery).
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