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Solved: Logical Drive Unavailable


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Adazh's Avatar
Adazh Adazh is offline
Member with 39 posts.
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Join Date: Sep 2007
Location: Harare, Zimbabwe
Experience: Intermediate
10-Jul-2012, 03:55 AM #1
Solved: Logical Drive Unavailable
Hello TSG

I have a server running '08 64x R2 which has an iSCSI box linked to it. The ISCSI unit has its own management software but has compatibility with Windows products.

My challenge is that after I reformatted the server 1 logical drive is not accessible. The drive can be seen under the Computer management console on the server but cannot be accessed. I have run the chkdsk command in hopes to resolve any issues but the results come in clean.

The iSCSI box config is as follows;
  • 5 * 2TB drives in RAID 5
  • 4 Logical Drives in that RAID set
  • SIngle RAID instance support on box

All drives report a healthy state from the iSCSI unit and as indicated, the results of the repair are as below;

C:\>chkdsk g: /x /f
The type of the file system is NTFS.
Volume label is Full User Backups.

CHKDSK is verifying files (stage 1 of 3)...
2232848 file records processed.
File verification completed.
63 large file records processed.
0 bad file records processed.
0 EA records processed.
0 reparse records processed.
CHKDSK is verifying indexes (stage 2 of 3)...
2741076 index entries processed.
Index verification completed.
0 unindexed files scanned.
0 unindexed files recovered.
CHKDSK is verifying security descriptors (stage 3 of 3)...
2232848 file SDs/SIDs processed.
Security descriptor verification completed.
254115 data files processed.
CHKDSK is verifying Usn Journal...
1255248 USN bytes processed.
Usn Journal verification completed.
Windows has checked the file system and found no problems.

1953118408 KB total disk space.
1949712708 KB in 1978395 files.
978352 KB in 254116 indexes.
0 KB in bad sectors.
2360156 KB in use by the system.
65536 KB occupied by the log file.
67192 KB available on disk.

4096 bytes in each allocation unit.
488279602 total allocation units on disk.
16798 allocation units available on disk.

Please assist.

Last edited by Adazh; 10-Jul-2012 at 04:03 AM.. Reason: Unreadable text
Adazh's Avatar
Adazh Adazh is offline
Member with 39 posts.
THREAD STARTER
 
Join Date: Sep 2007
Location: Harare, Zimbabwe
Experience: Intermediate
11-Jul-2012, 05:11 AM #2
Hello All

Just to update you all on this matter....

The HDD security descriptors were corrupted and each time I ran chkdsk it would tell me that it has cleared them yet it had not.

I overwrote the existing ones on the drive and applied new ones and hey presto the drive became available.
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