Re: Filesize

1998-09-30 20:35:19
Subject: Re: Filesize
From: Ray Schafer <schafer AT TKG DOT COM>
To: nv-l AT lists.tivoli DOT com
Date: Wed, 30 Sep 1998 20:35:19 -0400
This is a so called "sparce" file.  Tar can package it up OK, but it will
try to allocate the the disk space to hold the file when you restore.  Other
archivers such as cpio or pax can handle sparse files.  Backup/restore on
AIX can as well. The pax command can unpack tar or cpio archives and it does
handle the sparse files.  If you have the Netview Turbo database utilities
you can optimize for space.  I think that (but am not sure) it will minimize
these types of files.

> -----Original Message-----
> From: Discussion of IBM NetView and POLYCENTER Manager on NetView et
> alia [mailto:NV-L AT UCSBVM.UCSB DOT EDU]On Behalf Of Fältman
> Sent: Tuesday, September 29, 1998 8:33 AM
> Subject: Filesize
> What is "/usr/OV/databases/openview/ovwdb/current/value_info.pag" ?
> ls -l   =  1776075742 bytes (way over logicalvolume/filesystem size)
> du -k   =        22136 Kbytes
> What happens to this sort of files when the are backuped and
> restored using
> "tar -cvf / tar -xvf" ?
> ---
> Mikael Feltman (mifal AT wmdata DOT com)
> Network Services
> WM-data Dataservice AB, BOX 164, S-295 22 BROMOLLA

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