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Author Topic: D-Link replaced my defective DNS-320L but cannot access my old HDDs volumes  (Read 2548 times)

madmax168

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  • Posts: 5
D-Link replaced my defective DNS-320L but cannot access my old HDDs volumes
« on: October 12, 2015, 04:45:17 AM »
Hello. I hope someone can help me on this.

My original Dlink DNS-320L broke down so Dlink replaced the unit. But now, it does not detect the volumes on the 2 x HDD which was configured as RAID 1 on the old DNS-320L.

How do I or what do I need to do so the new DNS-320L can access the volumes on my HDDs? I need the data in the HDDs so formatting them would be a very bad and last option. Looks like using RAID 0 or RAID 1 for these DNS-320L is not a good idea.

I hope someone can help me and teach me how to be able to access the 2 x HDDs. Thanks.
« Last Edit: October 12, 2015, 09:56:21 AM by FurryNutz »
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ivan

  • Level 8 Member
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  • Posts: 1480
Re: Drink replaced my defective DNS-320L but cannot access my old HDDs volumes
« Reply #1 on: October 12, 2015, 10:06:23 AM »
The normal procedure is to allow the NAS unit to format the drives for the type of array you want and then restore the data from your backup.

From what you are saying it appears that you don't have a backup available but you have important data that you need.  The first thing you should do is read http://forums.dlink.com/index.php?topic=41400.0 and then equip yourself with a USB/SATA adapter or caddy and the necessary software to read the Ext3/4 file system of the drives.

Since you have RAID 1 drives each drive is an exact copy of the other which, hopefully, will make copying the data to some backup medium easier - only one drive to copy.  For backup medium I would recommend that you get a USB drive of the same capacity, or greater, as one of your drive pairs.

Once you have your backup just follow the normal procedure of formatting the drives as a RAID 1 array and then restore from the backup.

There are a couple of things that you should do just for your being satisfied that the drives themselves are in good condition and that is to use the disk manufacturers disk tools to give each drive a good test - if they pass you will have no worries.

If you have any questions please ask them here and I will look in every few days just in case.

As a last item.  Please remember that any form of RAID array is NOT a backup, it is designed to keep data available should a disk fail - nothing else.  We have a large number of DNS-323/320/343 NAS boxes used in our business where for every primary storage unit there are two others used as backup units.  That might be considered as overkill but we have not lost any of our clients data since we instituted that system and we have had drives fail as well as a couple of unit failures.
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