Need a compressed file system temporarily

Cameron Simpson cs at
Wed Oct 7 00:48:28 EDT 2009

On 06Oct2009 08:14, Yong Huang <yong321 at> wrote:
| I have RHEL 4 or 5 with standard installation. I need a compressed file
| system temporarily to store an Oracle data pump export file. What's the
| easiest solution? Oracle data pump does not support a sequential device
| as its output so I can't pipe the output to gzip or compress.

Does it actually do random I/O to the dump file, or does it simply
require you to specify a filename with no _convenient_ pipe output

If it is only an invocation issue, thus:

  oracle-data-pump-command filename
you may be able to check and use a named pipe:

  mknod p foo
  gzip <foo >foo.gz &
  oracle-data-pump-command foo

| Creating
| the dump file on an internally compressed file system is the best I can
| think of. Thanks.

It is a good idea.
Cameron Simpson <cs at> DoD#743

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