Configuring the VXFEN module parameters
Prev About VXFEN tunable parameters Next

Configuring the VXFEN module parameters

After adjusting the tunable kernel driver parameters, you must reconfigure the VXFEN module for the parameter changes to take effect.

The following example procedure changes the value of the vxfen_min_delay parameter.

Note:

You must restart the VXFEN module to put any parameter change into effect.

To configure the VxFEN parameters and reconfigure the VxFEN module

  1. Check the status of the driver and start the driver if necessary:

    # /etc/methods/vxfenext -status

    To start the driver:

    # /etc/init.d/vxfen.rc start

  2. List the current value of the tunable parameter:

    For example:

    # lsattr -El vxfen
    vxfen_deblog_sz 65536 N/A True
vxfen_max_delay 3 N/A True
vxfen_min_delay 1 N/A True
vxfen_vxfnd_tmt 60 N/A True

    The current value of the vxfen_min_delay parameter is 1 (the default).

  3. Enter the following command to change the vxfen_min_delay parameter value:

    # chdev -l vxfen -P -a vxfen_min_delay=30

  4. Ensure that SFCFS is shut down. Unload and reload the driver after changing the value of the tunable:

    # /etc/methods/vxfenext -stop
    # /etc/methods/vxfenext -start

  5. Repeat the above steps on each cluster node to change the parameter.

Prev Up Next
About VXFEN tunable parameters Home Using Veritas Extension for Oracle Disk Manager