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System Administration Guide, Volume 1

The fsck Summary Message

When you run fsck interactively and it completes successfully, the following message is displayed:


# fsck /dev/rdsk/c0t0d0s7
** /dev/rdsk/c0t0d0s7
** Last Mounted on /export/home
** Phase 1 - Check Blocks and Sizes
** Phase 2 - Check Pathnames
** Phase 3 - Check Connectivity
** Phase 4 - Check Reference Counts
** Phase 5 - Check Cyl groups
2 files, 9 used, 2833540 free (20 frags, 354190 blocks, 0.0% fragmentation)
#

The last line of fsck output describes the following information about the file system:

# files

Number of inodes in use 

# used

Number of fragments in use 

# free

Number of unused fragments 

# frags

Number of unused non-block fragments 

# blocks

Number of unused full blocks 

% fragmentation

Percentage of fragmentation, where: free fragments x 100 / total fragments in the file system