MIS Team
asked on
Disk will only come online in read only mode
Hi
I have a QNAP NAS with an iSCSI LUN, attached to a Windows Server 2012 R2 box. Raid 5, 10TB, thin provisioned.
Deduplication is enabled on the server and volume.
The volume completely filled up, and the disk took itself offline in Windows disk management.
If I hover over the disk, it says 'the disk is offline because it is out of capacity'. If I try to bring it online, nothing appears to happen. If I open the event viewer, I see these two events appear every time I try to bring it online:
Warning: An error was detected on device \Device\HArddisk2\DR6 during a paging operation
Followed by:
Disk 2 has reached a logical block provisioning permanent resource exhaustion condition.
The only way I can bring it online is to use diskpart, but it only comes online in read only mode, therefore I cannot delete any data from it to free up space.
I did manage to bring it online in write mode by attaching it to a 2008 R2 box, but when I delete data, it doesn't update the free space correctly. I can delete GBs of data, but only a few MB are shown as free when looking at the properties of the disk. I suspect this is a result of the dedupe.
The disk does show as having 1GB free now, even in 2012, but it still only comes online in read only mode.
One final thing I tried was to use diskpart to change the read only attribute to 'No', however when I do this, the disk immediately takes itself offline again.
My final option is to move all the data off on to another NAS, and reformat it, but I really need to avoid this.
Any ideas please?
Cheers
I have a QNAP NAS with an iSCSI LUN, attached to a Windows Server 2012 R2 box. Raid 5, 10TB, thin provisioned.
Deduplication is enabled on the server and volume.
The volume completely filled up, and the disk took itself offline in Windows disk management.
If I hover over the disk, it says 'the disk is offline because it is out of capacity'. If I try to bring it online, nothing appears to happen. If I open the event viewer, I see these two events appear every time I try to bring it online:
Warning: An error was detected on device \Device\HArddisk2\DR6 during a paging operation
Followed by:
Disk 2 has reached a logical block provisioning permanent resource exhaustion condition.
The only way I can bring it online is to use diskpart, but it only comes online in read only mode, therefore I cannot delete any data from it to free up space.
I did manage to bring it online in write mode by attaching it to a 2008 R2 box, but when I delete data, it doesn't update the free space correctly. I can delete GBs of data, but only a few MB are shown as free when looking at the properties of the disk. I suspect this is a result of the dedupe.
The disk does show as having 1GB free now, even in 2012, but it still only comes online in read only mode.
One final thing I tried was to use diskpart to change the read only attribute to 'No', however when I do this, the disk immediately takes itself offline again.
My final option is to move all the data off on to another NAS, and reformat it, but I really need to avoid this.
Any ideas please?
Cheers
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Gerald Connolly
Is this a duplicate, i am sure i answered this query for an anonymouse user!
ASKER
Thanks - I ended up buying a new NAS in the end, and copying the data across. Not using thin provisioning this time though!