Increasing the network buffer size on AIX for synthetic full backups

Article:HOWTO56145  |  Created: 2011-07-25  |  Updated: 2012-01-24  |  Article URL http://www.symantec.com/docs/HOWTO56145
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How To


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Increasing the network buffer size on AIX for synthetic full backups

This topic applies to tuning NetBackup.

If synthetic full backups on AIX are running slowly, increase the NET_BUFFER_SZ network buffer to 262144 (256KB).

To increase the network buffer size on AIX

  1. Create the following file:

    /usr/openv/netbackup/NET_BUFFER_SZ
  2. To change the default setting from 32032 to 262144, enter the number 262144 in the file.

    This file is unformatted, and should contain only the size in bytes:

    $ cat /usr/openv/netbackup/NET_BUFFER_SZ
    262144
    $

    A change in this value can affect backup and restore operations on the media servers. Test backups and restores to ensure that the change you make does not negatively affect performance.

See Setting the network buffer size for the NetBackup media server

See Network buffer size in relation to other parameters


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Article URL http://www.symantec.com/docs/HOWTO56145


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