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[drives]

Hi there. I did a search, and found similar threads, but not quite the issue I'm having.

I had 2x750GB drives in my DNS-323, firmware 1.09.  Ran well for the past 3 years or more.  But on Monday it emailed me to say the Right drive has failed.  The drives were in RAID-1, mirroring.

I powered down, removed the Right drive, replaced it with a brand new 1TB.  I realize it's not the same size, but it was all I could find locally & quickly. The manual says it will rebuild the RAID when I reboot, and just use the smallest of the two drives size, ie. the 1TB will use 750GB max, that's fine with me.

I powered it back up, and the rebuild ran for about 2 hours and finished without errors.  However, when I look at the Status page, the new hard drive I put in is showing as "JBOD" instead of RAID-1, and it also shows as a 250GB drive, not 1TB, and it says only 62MB used, so it hasn't copied anything.

I have tried this twice now (removed the new drive, formatted it on a second computer, then put it back in the DNS-323), with the same result.

Any ideas?  I do have my data backed up, so if I have to reformat the entire thing, so be it.  From a time standpoint though, I'd rather it just rebuilt on its own.

Thanks for your replies.

[dosborne]

The first 750GB will be raid, the remaining 250GB will be JBOD. The total match the 1TB size of the disk. Are you sure that you replaced the correct (failed) drive? I'd mount it on a windows PC with the appropriate driver to check.

I'd also suggest you read about AFT drives and see if your new drive is affected. You may need the Beta F/W.

[fordem]

I suspect the unit did exactly what it was expected to do, you on the other hand, don't know what you should expect to see - when you look at the status page does it show the original 750GB drive and does the status of that show as "Completed"?

With 2x750GB drives in a RAID1 array, you only see one single 750GB drive - if you creat an array with 1x750GB and 1x1TB drives, the unit will create a 750GB array, which you will see as a 750GB drive abd use the remaining space (250GB) as a second JBOD drive - so you now see two drives 1x750 & 1x250