Sophos Anti-Virus for UNIX - Process memory limit recommendations on AIX systems

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  • Updated: 03 Sep 2014

On UNIX systems, per-process memory limits can restrict Sophos Anti-Virus from functioning correctly. On IBM AIX systems, Sophos Anti-Virus requires more memory than the default 'Maximum Data Segment' size limit. This article describes how to increase this limit on AIX systems.

This article may also apply to other UNIX operating systems. Refer to your operating system documentation for assistance.

Known to apply to the following Sophos product(s) and version(s)
SAV for UNIX 7.x
SAV for UNIX 9.x

Operating systems

What To Do

We recommend you set the Maximum Data Segment size to at least 250MB.

  1. The current data segment size limit (in KB) can be viewed by running: ulimit -d
  2. To change the data segment size limit, set the value in /etc/security/limits.
    This value must be defined in 512 byte blocks.  For example, to set a value of 250MB:  data = 512000
  3. Reboot the Operating System.

If you need more information or guidance, then please contact technical support.

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