07-12-2013
It's tough to help with so little data.
The problem could be a lot of things. The slow system could just be a slow system. The file system could be almost full, making it slower. It could be on disk(s) that are shared with other very busy file systems.
The more data you provide, the more help you'll get.
What type of Unix? What's the result from running "uname -a"?
What type of file system? How big is the file system? How full is it?
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UNAME(1) BSD General Commands Manual UNAME(1)
NAME
uname -- Print operating system name
SYNOPSIS
uname [-amnprsv]
DESCRIPTION
The uname utility writes symbols representing one or more system characteristics to the standard output.
The following options are available:
-a Behave as though all of the options -mnrsv were specified.
-m print the machine hardware name.
-n print the nodename (the nodename may be a name that the system is known by to a communications network).
-p print the machine processor architecture name.
-r print the operating system release.
-s print the operating system name.
-v print the operating system version.
If no options are specified, uname prints the operating system name as if the -s option had been specified.
SEE ALSO
hostname(1), machine(1), sw_vers(1), uname(3)
STANDARDS
The uname utility conforms to IEEE Std 1003.2-1992 (``POSIX.2''). The -p option is an extension to the standard.
BSD
November 9, 1998 BSD