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showfile - displays the attributes of AdvFS files
/usr/sbin/showfile [-x] filename...
Displays the full storage allocation map (extent
map) for AdvFS files.
One or more file names. If you do not supply a
filename
argument, use an asterisk (*) to display the entire
directory.
The showfile command displays the attributes of one or more AdvFS files. The command also displays the extent map of each file. An extent is a contiguous area of disk space that the file system allocates to a file. Simple files have one extent map; striped files have an extent map for every stripe segment.
You can list AdvFS attributes for an individual file or the contents of a directory. Although the showfile command lists both AdvFS and non-AdvFS files, the command displays meaningful information for AdvFS files only.
The showfile command displays the following file attributes: Id
Whereas a simple file has one extent map, a striped file has more than one extent map. An extent map (numbered extentMap:1, extentMap:2, and so on) displays the following information: pageOff
The following example displays the AdvFS-specific attributes for all the files in the current working directory: # showfile *
Id Vol PgSz Pages XtntType Segs SegSz I/O Perf File
6.8001 1 16 427 simple ** ** async 100% datafile1
7.8001 1 16 427 simple ** ** sync 100% datafile2
5.8001 1 16 1 simple ** ** ftx 100% quota.group
4.8001 1 16 1 simple ** ** ftx 100% quota.user
The following example shows the attributes and extent information
for the
mail
file, which is a simple file:
# showfile -x mail
Id Vol PgSz Pages XtntType Segs SegSz I/O Perf File
4198.800d 2 16 27 simple ** ** async 66% tutor
extentMap: 1
pageOff pageCnt vol volBlock blockCnt
0 5 2 781552 80
5 12 2 785776 192
17 10 2 786800 160
extentCnt: 3
advfs(4)