
Raid stripe failure. What now?
#1
Posted 30 August 2013 - 04:01 PM

#2
Posted 30 August 2013 - 04:35 PM

It might be possible to salvage some data from the one existing drive, but I suspect it would be time consuming.
Sorry.
#3
Posted 30 August 2013 - 10:00 PM

Now, how would I go about salvaging whatever I can? Time is not an issue.
#4
Posted 30 August 2013 - 11:05 PM

It is important that you do not disconnect/remove the drives.
From you second screenshot, what options do you get from "4 Recover Volume Options"?
#5
Posted 31 August 2013 - 01:27 AM

#6
Posted 31 August 2013 - 12:31 PM

Now, how would I go about salvaging whatever I can? Time is not an issue.
You can hire a company, or you can manually review the data on the disk to see if there is any complete valid data. There might also be some programs which allow you to try to recover data on the disk, but the problem is half of the disk is gone.
It is also possible to get the failed disk repaired. Depending on what is wrong with it, if it was the controller board on it, you can sometimes replace the board, with the same firmware version, and get it to work again.
If you send the disk in, you would need to make sure that they don't wipe the data on the disk.
#7
Posted 31 August 2013 - 12:34 PM

From you second screenshot, what options do you get from "4 Recover Volume Options"?
Is it RAID0, there is no parity information, no redundant data, so it is not possible to recover data on a RAID0.
http://en.wikipedia.org/wiki/Raid0
#8
Posted 31 August 2013 - 12:45 PM

Now, how would I go about salvaging whatever I can? Time is not an issue.
You can hire a company, or you can manually review the data on the disk to see if there is any complete valid data. There might also be some programs which allow you to try to recover data on the disk, but the problem is half of the disk is gone.
It is also possible to get the failed disk repaired. Depending on what is wrong with it, if it was the controller board on it, you can sometimes replace the board, with the same firmware version, and get it to work again.
If you send the disk in, you would need to make sure that they don't wipe the data on the disk.
I accept that half the data is gone. However, how would I go about manually reviewing whatever data may remain on the disk? Also, what sort of recovery programs do you recommend?
#9
Posted 31 August 2013 - 12:59 PM

I accept that half the data is gone. However, how would I go about manually reviewing whatever data may remain on the disk? Also, what sort of recovery programs do you recommend?
I use Linux, so my answers are going to be a bit different :-). You can boot the machine using Knoppix and use od, strings or other commands to search for specific data.
I don't know of any specific recovery problems, although I have seen some discussed here.
Is there something specific that you are looking for on the disk?
#10
Posted 31 August 2013 - 01:10 PM

I don't know of any specific recovery problems, although I have seen some discussed here.
Is there something specific that you are looking for on the disk?
Just family photos and videos. I'll try Knoppix and see how it goes from there.
Thanks, I'll drop by later if I have more questions.
#11
Posted 31 August 2013 - 01:21 PM

You can copy the disk to another drive, then work with that to protect the original data.
#12
Posted 31 August 2013 - 01:29 PM

For those files, you can't just look at the data, you need to have a tool to search for the files as there is nothing obvious that it is what you are looking for.
You can copy the disk to another drive, then work with that to protect the original data.
I have a spare HDD, what't the easiest way to copy over the data?
#13
Posted 31 August 2013 - 01:33 PM

For example, once you boot knoppix, open a terminal and then "su" to get into root.
dd if=/dev/sda of=/dev/sdb bs=32M
Just make sure that the drives are correct, otherwise you will wipe out the data. It takes a long time if the drive is large.
#14
Posted 31 August 2013 - 05:37 PM

I don't know if it can tell you if the controller is bad.
I have read some good reports for recovery data using this program, > http://www.gnu.org/software/ddrescue/
Similar Topics
0 user(s) are reading this topic
0 members, 0 guests, 0 anonymous users
As Featured On:






