RAID 5, 10TB of data and... partition disappeared
Posted: 02 Nov 2016, 23:53
Hello Folks!
The story of the server is quite long...
It has 12 physical drives, 1TB each. Configuration: RAID5 +hot spare.
One big partition – NTFS, almost 10TB.
Theoretically it should survive failure of a drive and after some time another one.
But it seems that nobody took care about this machine until the logical drive failed…
Then there came a HP service and they have found that 2 physical drives were dead and one was in state predictive failure.
So there still was a chance that the data was still recoverable.
So they exchanged the 2 dead drives. RAID started to rebuild. Great. When the rebuild was finished they exchanged the predictive failure drive to a good one. And now RAID says that everything is OK.
Unfortunately it is not like that. Windows says that it cannot see anything on the drive.
Chkdsk – can see partition name it san see that the file system is NTFS. It also can see some files and pretends that it is deleting some of indexes (every run it “deletes” the same files) And now I’m trying with TestDisk.
Quick Search found partition with type MS Data (why not NTFS? – can anybody explain it, please?)
I can be wrong but it seems that it can see only part of files on it. I believe I should see some more directories…
Now on this machine there is DeeperSearch running… I’m waiting for the outcome.
So I have some questions:
- Why this partition is recognized as MS Data and not NTFS? Is it OK?
- Does it make any sense to run DeeperSearch in my situation?
- Any other suggestions?
Best regards
KRSF
The story of the server is quite long...
It has 12 physical drives, 1TB each. Configuration: RAID5 +hot spare.
One big partition – NTFS, almost 10TB.
Theoretically it should survive failure of a drive and after some time another one.
But it seems that nobody took care about this machine until the logical drive failed…
Then there came a HP service and they have found that 2 physical drives were dead and one was in state predictive failure.
So there still was a chance that the data was still recoverable.
So they exchanged the 2 dead drives. RAID started to rebuild. Great. When the rebuild was finished they exchanged the predictive failure drive to a good one. And now RAID says that everything is OK.
Unfortunately it is not like that. Windows says that it cannot see anything on the drive.
Chkdsk – can see partition name it san see that the file system is NTFS. It also can see some files and pretends that it is deleting some of indexes (every run it “deletes” the same files) And now I’m trying with TestDisk.
Quick Search found partition with type MS Data (why not NTFS? – can anybody explain it, please?)
I can be wrong but it seems that it can see only part of files on it. I believe I should see some more directories…
Now on this machine there is DeeperSearch running… I’m waiting for the outcome.
So I have some questions:
- Why this partition is recognized as MS Data and not NTFS? Is it OK?
- Does it make any sense to run DeeperSearch in my situation?
- Any other suggestions?
Best regards
KRSF