ibm-information-center/dist/eclipse/plugins/i5OS.ic.rzau9_5.4.0.1/rzau9backuplinutil.htm

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<h1 class="topictitle1">Backing up files using Linux utilities and applications</h1>
<div><p>This topic discusses backup and recover using Linux<sup>®</sup> utilities.</p>
<p>At the time of writing, not all the applications listed here had been tested
for use with iSeries™ tape
drives. However, even though a particular Linux backup application has not been
tested for use with iSeries tape drives, this does not mean that the
application will not work. You need to test your backup application to determine
if it is compatible with the tape drive installed on your iSeries server. </p>
<p>When performing a backup you should close any operation that is using files
on the Linux file
system or the directory you intend to back up. Though native Linux backup
utilities do back up files that are in use, we recommend that you close all
open files and the operations using them so as to preserve the latest file
updates and avoid any data corruption. </p>
<p>If the file system is network file system (NFS) then file locking occurs
when the file residing on NFS is in use by an operation. Creating a tar or
cpio backup archive can fail if you try to include such files. Commercial
applications like IBM<sup>®</sup> Tivoli<sup>®</sup> Storage Manager (TSM), ARCserve, Veritas, or
Legato provide better facilities for backing up data as they provide open
file agents. Even so, it would be safe practice to stop the operation that
is locking the file over NFS before backing it up. </p>
<div class="section"><h4 class="sectiontitle">Determining the tape device block size</h4><p>Before you
begin your backup using a Linux utility or application, you need to determine
the block size of the tape device you are using. To do this you run the magnetic
tape (mt) command, for example:</p>
<pre>mt -f /dev/st1 status</pre>
<p>Replace
/dev/st1 with the device name of your tape drive.</p>
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzau9linuxbackup.htm" title="This topic introduces the techniques you can use to perform Linux-centric backup and recovery on an Integrated xSeries Server or Integrated xSeries Adapter running Linux.">Linux-centric backup and recovery</a></div>
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