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Duo V1 Disk 1 died Disk 2 all data Install new larger drive?
Hello.
Many thanks in advance for any help given.
I've had my Duo V1 XRAID 2 x 1TB drives for a few years and it had happily been backing up and mirroring via Time Machine on my iMac (Lion). Then seemingly out of nowhere I started encountering problems with it. I couldn't access the NAS via RAIDar or any other process (AFP etc.) and went round and round the houses trying to figure out what was going on. I searched this forum for clues and was hit with waves of possibilities. Eventually one option was to remove a drive at a time to see if either was affecting the performance of the NAS. Whilst doing this I noticed that my Duo v1 worked fine without disk 1 inserted. In fact all of the data that was on Disk 1 was indeed also mirrored to Disk 2 and intact. I have since been running the Duo v1 NAS without drive 1 in place but not backing up to it. i.e just accessing the data. Now I'm happy that I've not lost all my data but I've realised I need to continue backing up (mirroring) to two drives and that I also need to increase capacity. I have purchased a new drive (as instructed Seagate ST2000DM001 2TB SATA III 3.5" HDD Drive -7200rpm 64MB Cache) and I get the impression I should be able to insert this new larger disk and copy back the data from disk 2 to it? I'd like to get this process right as I don't want to endanger the data on disk 2 and if it works I'd like to eventually replace disk 2 with a larger drive in a similar way.
Model: ReadyNAS Duo [X-RAID]
Firmware: RAIDiator 4.1.13 [1.00a043]
Thanks
Kieran
Many thanks in advance for any help given.
I've had my Duo V1 XRAID 2 x 1TB drives for a few years and it had happily been backing up and mirroring via Time Machine on my iMac (Lion). Then seemingly out of nowhere I started encountering problems with it. I couldn't access the NAS via RAIDar or any other process (AFP etc.) and went round and round the houses trying to figure out what was going on. I searched this forum for clues and was hit with waves of possibilities. Eventually one option was to remove a drive at a time to see if either was affecting the performance of the NAS. Whilst doing this I noticed that my Duo v1 worked fine without disk 1 inserted. In fact all of the data that was on Disk 1 was indeed also mirrored to Disk 2 and intact. I have since been running the Duo v1 NAS without drive 1 in place but not backing up to it. i.e just accessing the data. Now I'm happy that I've not lost all my data but I've realised I need to continue backing up (mirroring) to two drives and that I also need to increase capacity. I have purchased a new drive (as instructed Seagate ST2000DM001 2TB SATA III 3.5" HDD Drive -7200rpm 64MB Cache) and I get the impression I should be able to insert this new larger disk and copy back the data from disk 2 to it? I'd like to get this process right as I don't want to endanger the data on disk 2 and if it works I'd like to eventually replace disk 2 with a larger drive in a similar way.
Model: ReadyNAS Duo [X-RAID]
Firmware: RAIDiator 4.1.13 [1.00a043]
Thanks
Kieran
17 Replies
Replies have been turned off for this discussion
- Hi MDGM thanks for getting back to me.
Please can you explain why I need to delete the spare bundle in my .timemachine directory?
Thanks - Oops, I think was thinking of another thread where someone was asking about freeing up that space.
- Hello again.
I didn't think erasing my sparse bundle sounded correct, luckily I didn't do it, phew!
OK so to recap. I backed up the remaining working NAS hard drive to an external drive (via USB, it took 4 days), but it didn't seem to create a similar sized back up to that of the original storage drive (external HDD is showing 730GB of data where as the Duo drive has 920GB on it). I've run the back up through disk utility to verify it, all seems fine. I've unlocked the hidden files to find my .timemachine directory (503GB). Why the discrepency between the drives? So what do I do next? Should I try and insert the new 2TB drive into the NAS to see if it will sync and copy all the remaining NAS drive data and hope it doesn't put to much stress on the drive and kill it? Or should I attempt to back up the original NAS drive again to see if I can get a full backup before doing this? If so how do I backup via ethernet (Frontview?) between the NAS and my iMac?
Any help appreciated.
Thanks - Time Machine efficiently stores backups of how your NAS was at multiple points in time (hence the name). When you do a full backup then only one point in time has to be stored initially. No changes to the data have to be allowed for. It's after the full backup that the usage on the backup destination starts to become higher than the size of the source data. You should always have more space on the backup system than on the source for this reason.
I would backup the data on the NAS first.
Backing up the NAS to your Mac is not so easy due to the way Apple implements SMB support.
You'd probably need to mount the NAS on your Mac and copy the sparsebundle from the Mac end. - Hi MDGM (and any other viewers)
Again thanks for the help. I think I need to clarify my situation again (in response to the last post).
I've had my Duo V1 XRAID 2 x 1TB drives for a few years and it had happily been backing up and mirroring my iMac (Lion) data to the NAS via Time Machine (view my first post for a detailed overview of the problems I faced).
Since removing the problematic hard drive in my NAS, I then backed up the remaining working NAS hard drive to an external drive (via USB, it took 4 days), but it didn't seem to create a similar sized back up to that of the original storage drive (external HDD is showing 730GB of data where as the Duo drive has 920GB on it). I've run the back up through disk utility to verify it, all seems fine. I've unlocked the hidden files to find my .timemachine directory (503GB). Why the discrepency between the drives? So what do I do next? Should I try and insert the new 2TB drive into the NAS to see if it will sync and copy all the remaining NAS drive data and hope it doesn't put to much stress on the drive and kill it? Or should I attempt to back up the original remaining NAS drive again to see if I can get a full backup before doing this? If so how do I backup via ethernet (Frontview?) between the NAS and my iMac?
Thanks
Kieran
Model: ReadyNAS Duo [X-RAID]
Firmware: RAIDiator 4.1.13 [1.00a043] - Hello
I've just lost a whole massive message so i'll try and keep this brief (read the other posts for detailed info).
I've finally had a chance to get to my ReadyNAS Duo V1 & Mac.
I connected the two directly via ethernet and got them talking.
I upgraded RAIDar and noticed that the remaining drive (HDD Drive 2) held 733GB out of 900+GB, I've double checked the capacity of my external back up drive and that has 780+GB of data on it, so it would appear that all my data was backed up to the external drive.
Ok so now can I insert my new (replacement) HDD 1 (2TB) whilst the duo is running?
Is that all that is necessary? I imagine it will take some time to transfer the data from HDD 2 to HDD 1?
Thanks
Kieran - You can (and should) insert the replacement drive while the duo is running. It should detect the insertion, and begin rebuilding the RAID array. You'll be able to see progress both on the web ui and via RAIDar.
Data should remain available during the process, though performance is of course slower.
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