Chkdsk errors?

[JellyWorld]

I have an external hard disk which I ran chkdsk on, and the first time I ran it (without the /F option) I got the following message:

The type of the file system is NTFS.
Volume label is XXXX.

WARNING! F parameter not specified.
Running CHKDSK in read-only mode.

CHKDSK is verifying files (stage 1 of 3)...
File verification completed.
CHKDSK is verifying indexes (stage 2 of 3)...
Index verification completed.
CHKDSK is verifying security descriptors (stage 3 of 3)...
Security descriptor verification completed.
Correcting errors in the Volume Bitmap.
Windows found problems with the file system.
Run CHKDSK with the /F (fix) option to correct these.

58645250 KB total disk space.
45276308 KB in 1898 files.
772 KB in 352 indexes.
0 KB in bad sectors.
70026 KB in use by the system.
65536 KB occupied by the log file.
13298144 KB available on disk.

4096 bytes in each allocation unit.
14661312 total allocation units on disk.
3324536 allocation units available on disk.

So then I ran chkdsk again, this time with the /F option and I got this

The type of the file system is NTFS.
Cannot lock current drive.

Chkdsk cannot run because the volume is in use by another
process. Chkdsk may run if this volume is dismounted first.
ALL OPENED HANDLES TO THIS VOLUME WOULD THEN BE INVALID.
Would you like to force a dismount on this volume? (Y/N) y
Volume dismounted. All opened handles to this volume are now invalid.
Volume label is XXXX.

CHKDSK is verifying files (stage 1 of 3)...
File verification completed.
CHKDSK is verifying indexes (stage 2 of 3)...
Index verification completed.
CHKDSK is verifying security descriptors (stage 3 of 3)...
Security descriptor verification completed.
Correcting errors in the Volume Bitmap.
Windows has made corrections to the file system.

58645250 KB total disk space.
45276308 KB in 1898 files.
772 KB in 352 indexes.
0 KB in bad sectors.
70026 KB in use by the system.
65536 KB occupied by the log file.
13298144 KB available on disk.

4096 bytes in each allocation unit.
14661312 total allocation units on disk.
3324536 allocation units available on disk.

What does this mean? Have I lost any data or is it only a minor error? I tried opening a couple of files and they worked fine, so I don't think it's a full-scale meltdown. I want to know because I have some important data on it (Anime!).

 

[Revisedsoul]

basicly, the volume bitmap holds information on what blocks(chuncks of hd space) are full or not, but has no idea what is in the blocks. a common error with that is it having areas that have no data in them marked as they do, or vise versa. but that does not seem to be the problem. but based on the readout afterwords, you seem to be fine

 

[Glirk Dient]

looks dandy to me