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#1 2008-07-21 23:28:41

ricmik
Member
Registered: 2007-09-23
Posts: 6

How to deal with your warranty replacement unit without losing data

Ok, I've spent about 3 hours solving this problem.
I had a DNS-323 where the LEDs became dim, and eventually the power supply stopped working.
Today I got a replacement unit; I had no backup of my old configuration, all I knew whas that I had to get my RAID-1 volume to work.
The DNS-323 insists on formatting the harddrives upon insertion, but that was not an option since I had alot of imporant data. The last backup was performed about two weeks before the DNS-323 before it died.
I inserted one of the drives, and tried to access the DNS-323 via SMB (windows share). The code page wasn't set correctly, so all special characters were not printed right; and this would make a real mess in the directory of my previously backed up files.

Well... I needed a fresh consistent backup without errors in the file names.
My first thought was to insert one of the HDDs into a USB-enclosure and connect it to a Linux-box. The linux-box didn't want to read the contents of the drive.
I also tried to install the Ext2 IFS driver in Windows and mount the drive there without any luck.

Since the previous diskdconfiguration of the DNS-323 was set to RAID-1 I could safely format one of the harddrives.
I guess the DNS-323 configures Samba to support UTF-8 after formatting, because when I inserted the second harddrive, everything looked allright.

The solution:

1. Configure the DNS-323
2. Insert the first HDD (left side) and format it as a stand-alone drive
3. Power down the DNS-323 and swap the inserted disk with disk number two
4. Power it up, and backup the contents via SMB (use a tool like robocopy (download this for 2003/XP, robocopy is included in Vista))
If you decide to use robocopy, you could use these command parameters: robocopy /MIR /ZB /W:2 /R:2 \\dns323\Volume_1\ C:\dns323_backup\
Be careful with the /MIR option - because this will delete all files in your destination folder if they do not exist on your DNS-323 (take a look at robocopy /?).
5. Voila! A fresh consistent backup! big_smile Now you can reformat both of the drives and configure them to RAID-1.

Note to self:
Take backup of data frequently - at least one time a day. Robocopy does this nicely smile
Take backup of the configuration after making changes

Edit:
Btw.. I could not get fun_plug to work in this state either, even if it used to work before.

Last edited by ricmik (2008-07-21 23:44:01)

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#2 2008-07-22 01:13:26

silversurfer
Member
Registered: 2008-07-20
Posts: 95

Re: How to deal with your warranty replacement unit without losing data

Maybe it is possible to even use the raid upgrade script from bq041 to rebuild the raid after your step 2? -> http://dns323.kood.org/forum/p16960-200 … tml#p16960
I wonder...

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