OK, I did many of the steps listed here in the original post, but it was from another source (http://cdonner.com/qnap-raid-expansion.htm) on the web. I am now having a problem of some of my data seemingly dissapeared (still have all original disks so should not be a problem except my time to add all new disks again). Here are my details:
TS-459 Pro II
3 GB RAM
4.0.2 QTS
Warranty EXPIRED Jan 2014
Previously configured with 4 x 3TB Seagate drives
Individually installed my new WD Red 4TB drives, each one installed perfectly and all data was good after it completed the expansion process. So even after installing the 4th drive, all data was there (well I did not check all but all seemed to be there and when I checked a few files to ensure their validity, they checked out on all occasions). All 4 of the original drives are still available, numbered and have not been touched since removed from NAS.
Next step, I needed to expand the capacity to recognize my 16TB of drives. I shut down whatever services I could from the GUI. I then used the following command from a telnet connection to shut down other stuff
Code: Select all
/etc/init.d/services.sh stop
I then issued the following command
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umount /dev/md0
Next I tried the checkdisk
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e2fsck -f /dev/md0
Pass 1: Checking inodes, blocks, and sizes
Inode 75014151 has INDEX_FL flag set on filesystem without htree support.
answer=1
. . . (many more of these entries in the middle here)
Inode 413646858 has INDEX_FL flag set on filesystem without htree support.
answer=1
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
/dev/md0: ***** FILE SYSTEM WAS MODIFIED *****
/dev/md0: 1082956/549134336 files (4.5% non-contiguous), 2064360589/2196523152 blocks
[/dev]
I then (and now believe foolishly) went back to the GUI to initiate the expansion. It began at 11:21 pm and failed at 3 am.
When I logged in this morning, the system was running fine, but SOME data was gone. I have verified several files are ok, but my entire "Private" folder is missing as is some of my "Backup" folder data.
So, what are my options here and if anyone knows, what may have happened? I am pretty sure I can just install the original 4 drives (turn off system, put old drives in in original order and turn system back on) and start the rebuild process all over, but as we all know, this is a very long process and if there is any way I can recover my data without doing this, it would be most appreciated. I guess one option would be, shut down system, put original disks back in, reboot, copy data from those disks that I am missing to an external drive, put new disks back in and move that data back over to new disks from the external. My only thing there is, how do I ensure I get all the data that is missing. Is there any way I can do some kind of checksum or something similar to ensure I get all the data from the originals.
If I have left out any details, please let me know so I can update this information.
All help appreciated.
Thanks
W