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Sun QFS and Sun Storage Archive Manager 5.3 Reference Manual Sun QFS and Sun Storage Archive Manager 5.3 Information Library |
1. User Commands (Man Pages Section 1)
2. Maintenance Commands (Man Pages Section 1M)
3. Library Functions (Man Pages Section 3)
4. Library Functions (Man Pages Section 3X)
5. File Formats (Man Pages Section 4)
NAME
shrink.cmd - SAM-QFS shrink command file
SYNOPSIS
/etc/opt/SUNWsamfs/shrink.cmd
AVAILABILITY
SUNWsamfs
DESCRIPTION
Directives for controlling the shrink can be read from the
/etc/opt/SUNWsamfs/shrink.cmd file. The directives must
appear one per line.
Comment lines are permitted. Comment lines must begin with
a pound character (#), and the comment can extend through
the rest of the line.
Directives that appear prior to any fs= directive are
applied to all file systems. Directives that appear after a
fs= directive are applied to the specified file system only.
Directives that are specific to a file system override
general directives.
The miscellaneous directives control whether a log file is
written, whether to stage back on-line files that were
released, other aspects of shrinking.
MISCELLANEOUS DIRECTIVES
The following miscellaneous directives can be specified in
the shrink.cmd file:
block_size = n
Sets the buffer size to read the .inodes file in units
of megabytes. For n, specify an integer such that 1 <
n < 16. The default n=1MB.
display_all_files
Writes the name for each file, as it is encountered, to
the log file. This directive allows you to see the
result of executing the remove or release command. By
default, the file names are not displayed to the log
file.
do_not_execute
Writes the name for each file, as it is encountered, to
the log file. This directive allows you to judge the
effects of executing the remove or release command,
without actually executing the command. By default,
the command is executed.
fs = file_system_family_set_name
Specifies to the shrink that the subsequent directives
apply to the indicated file_system_family_set_name
only.
logfile = filename
Sets the name of the shrink's log file to filename. By
default, no log file is written.
stage_files
The files released are staged back on-line. By
default, released files are not staged back on-line.
See stage.
stage_partial
The partial size released for files is staged back on-
line. By default, the partial size is not staged back
on-line. See stage -p.
streams = n
Sets the number of threads to be used to shrink the
equipment. For n, specify an integer such that 1 < n <
128. The default n=8.
EXAMPLES
Example 1. This example file sets the streams directive for
the samfs1 file system. A shrink log is produced.
fs = samfs1
streams = 64
logfile = /var/adm/shrink.log
Example 2. This example specifies stage parameters and log
files for each file system.
display_all_files
logfile = /var/adm/default.shrink.log
fs = samfs1
stage_files
stage_partial
logfile = /var/adm/samfs1.shrink.log
fs = samfs2
stage_partial
logfile = /var/adm/samfs2.shrink.log
SEE ALSO
release(1), stage(1).
mount_samfs(1M), sam-shrink(1M).