Unfortunately no one can be told what fun_plug is - you have to see it for yourself.
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Hi All, I have a DNS-323 model A, with 2x 750Gb WD drives in it. It has been working fine for a few years. It is about 1/2 full.
Yesterday none of the computers on the network could access any files. No amount of power cycling made any difference. The web interface wasn't responding.
Eventually I pushed the reset button and I got the web interface back, but seemingly not all the files. It is as if I have jumped back a few months. Files that were deleted have re-appeared. Files that were created last week are no longer there.
I then re-created the original users and set their permissions (R/W on everything)
I tried accessing via ftp (using Filezilla) but I can't see anything different. I was hoping that it might be a permission issue. While doing this I looked at a folder that should have had files in it but didn't.
I then installed fun_plug and telnetted in and had a look around, but could see nothing different than via ftp. I tried to go to the folder with the missing files that I had just been looking at via FTP, but the folder was missing.
I went back to ftp and the folder is still missing.
Can anyone suggest any reason for this strange behaviour, and suggest where I can go from here?
Thanks.
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Are your disks in a RAID configuration?
It is theoretically possible that you had a previous RAID failure and all changes since that time were being made written to one disk only, and now something has happened so that you are seeing that "older disk".
I say theoretically because I have not seen this happen with a DNS-323, but know of instances where it has happened with other network storage devices.
If you do not have a backup try reading the disks one at a time using a PC.
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It could be a disk failure caused the journalling to roll back to good versions of the files too.
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Thanks for the comments.
Yes, it is set to RAID 1. Unfortunately we live in an area which isn't blessed by terribly stable power, and even though I do have it on a UPS, sometimes even that runs out.
I took the disks out and connected them up to an Ubuntu system. I found that they weren't a mirror of each other at all. The left one was missing about 10% in terms of volue of and numbers of files.
I copied the files off the right hand one which is I think as good as it is going to get.
I then did an fsck on each one and there were hundreds of errors. Different on each drive.
Are these errors typical of power failures?
I notce that the Scan Disk function in the tools menu of the web interface was and still is (after running the fsck) greyed out. Is the DNS-323 supposed to do an fsck?
In terms of journalling, the partitions seem to be ext2 rather than ext3.
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