fsx man page on Ultrix

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fsx(8)									fsx(8)

Name
       fsx - file system exerciser

Syntax
       /usr/field/fsx [ -h ] [ -ofile ] [ -tn ] [ -fpath ] [ -pm ]

Description
       The  exerciser  exercises  a  file  system  by  spawning up to 250 (the
       default is 20) processes that create, open, write, close,  open,	 read,
       validate,  close, and unlink a test file.  These test files are created
       in (the default) unless the -fpath option is used. The  exerciser  will
       run until or kill -15 pid is sent to the process.

       A  logfile  is made in for you to examine and then remove. If there are
       errors in the logfile, make sure you check the file,  because  that  is
       where the driver and kernel error messages are saved.

Options
       The options are:

       -h     Print the help messages for the command.

       -ofile Save the output diagnostics in file.

       -tn    Run  time	 in  minutes  (n).   The  default  is to run until the
	      process receives a or a kill -15 pid.

       -pm    Number (m) of processes to  spawn.   The	maximum	 is  250;  the
	      default is 20.

       -fpath Path  name  of  directory	 on file system you wish to test.  For
	      example, or The default is

Examples
       The following example runs 10 processes on until the process receives a
       or kill -15 pid:
       % /usr/field/fsx -p10 -f/mnt
       The following example runs 20 processes on for 120 minutes in the back‐
       ground:
       % /usr/field/fsx -t120 &

Restrictions
       If there is a need to run a system exerciser over an NFS link or	 on  a
       diskless	 system there are some restrictions.  For exercisers that need
       to write into a file system, such as the target	file  system  must  be
       writable	 by  root.  Also the directory, in which any of the exercisers
       are executed, must be writable by  root	because	 temporary  files  are
       written	into  the  current  directory.	 These latter restrictions are
       sometimes difficult to overcome because	often  NFS  file  systems  are
       mounted	in  a  way that prevents root from writing into them.  Some of
       the restrictions may be overcome by copying the	exerciser  to  another
       directory and then executing it.	 Avoid using the exerciser over an NFS
       or diskless file system.

See Also
       Guide to System Exercisers

									fsx(8)
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