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joepwpb
Premium
join:2000-12-15
West Palm Beach, FL

CHKDSK Errors

I ran a CHKDSK and it found the following:

Cleaning up 361 unused index entries from index $SII of file 0x9.
Cleaning up 361 unused index entries from index $SDH of file 0x9.
Cleaning up 361 unused security descriptors.

and

Free space verification is complete.
CHKDSK discovered free space marked as allocated in the
master file table (MFT) bitmap.
Windows has made corrections to the file system.

I was wondering if these findings were of a serious nature and could possibly contribute to a BSOD.

Thanks

Joe P


dave
Premium,MVM
join:2000-05-04
not in ohio
kudos:8
Reviews:
·Verizon FiOS

More likely the BSOD caused them, by abruptly halting the system without a proper file system dismount.

In particular, the bitmap error is likely due to that. Disk I/O is expensive, so the file system keeps some free space in its back pocket for immediate use. That is, a certain amount gets marked as used, but is not immediately added to any file, it's just remembered as available in working memory. The file system can use it as needed. If the system shuts down cleanly, any allocated but unused space gets put back as free. If the system crashes, there's an accounting discrepancy which needs to get cleaned up. Note that 'marked as in use but not actually in any file' is benign; 'not marked as in use but actually in some file' is potentially catastrophic.

They're not serious problems if they got fixed and don't immediately show up again.



joepwpb
Premium
join:2000-12-15
West Palm Beach, FL

Thanks Dave...

Joe P