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PostPosted: Thu Jan 28, 2010 3:36 am 
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Joined: Thu Jan 28, 2010 3:28 am
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I received a notification email that one of my drives had a write error, then the Terastation shut down, I installed an identical replacement drive - now, how do I recover my system? It was set-up as a Raid5.

On the home page there is a message "Error has occurred in RAID Array1" - when I click on that it takes me to the Disk Management page, the message at the bottom of the page is:

An error in a RAID Array has been detected.
Select restructuring disk and click `Restructuring RAID Array`.

All disks are checked, except Disk 2 (the one I replaced) - if I check that disk I can select the button "Restructure" - but then a message says I will lose all my data. How do I rebuild the system?

Any help would be much appreciated.


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PostPosted: Fri Mar 18, 2011 9:54 pm 
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I have the same issue with the same Drive 2 and also need to know how to proceed :?


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PostPosted: Sun Mar 20, 2011 9:10 am 
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Joined: Tue Jul 26, 2005 5:22 pm
Posts: 1123
Location: United Kingdom
The message is actually saying that you will lose all the data on the drive that you have just ticked - not on those that were already ticked (and could not be changed).

When you click on that button with quite a few releases of the firmware you are taken to another screen that is in Japanese and displays a large 4-digit number for you to input to confirm that is OK. Enter the number and then click the left-most of the 2 buttons at the bottom to continue. When you do so, the system thinks for a minute or so while the RAID array is altered to put the new disk into it. During that period the raid array is not accessible via the network. You will then be told (hopefully) that the restructuring was successful.

At this point the system goes into RAID array "Repairing" mode as it rebuilds the data onto the new disk. This can take a long time - typically about 6+ hours on a 1TB system, and longer with larger arrays. The system is accessible via the network while the repair is in progress, but performance is degraded. When the repair process finally completes your system will be functioning with all drives once again operational.

I have been meaning for ages to produce a version of the telnet enabled firmware with the wording of those messages mage clearer and the one that displays in Japanese with one in English. The issue was that I knew how to live with the problem, and I had not got around to locating the text that would need changing. Maybe the fact that a couple of you have expressed confusion is a good reason to consider getting on and doing it :)


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PostPosted: Sat Dec 10, 2011 1:50 am 
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Joined: Sat Dec 10, 2011 1:07 am
Posts: 4
Location: United Kingdom
Hi itimpi. I think the file is /www/cgi-bin/html/en/gate_check.html

I'd try and find a way to do the translation but I can't figure out how to make it display in proper Japanese characters so I don't know what it says in the first place.

Ian

P.S. to be clear, I can't speak or read Japanese - I thought I'd try google translate.


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