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Product: Storage Foundation for Oracle RAC Guides   
Manual: Storage Foundation 4.1 for Oracle RAC Installation and Configuration   

VXFEN Tunable Parameters

The following table describes tunable parameters for the VXFEN driver:

vxfen Parameter Description Default Value Minimum Value Maximum Value

vxfen_debug_sz

Size of debug log in bytes.

65536

65536

256K

vxfen_max_read_coord_disk

Maximum number of times to read coordinator disks

25

1

1000

Configuring the VXFEN Parameters

For the parameter changes to take effect, reconfigure the VXFEN module using the following steps:

  1. Shut down all Oracle service groups on the node:
      # hagrp -offline oragrp -sys galaxy
  2. Stop all Oracle client processes, such as sqlplus, svrmgrl, and gsd, on the node.
  3. Unconfigure the VXVFN module:
      # /sbin/vxfenconfig -U
  4. Unload the module:
      # /usr/sbin/kcmodule vxfen=unused
  5. Configure the tunable parameter:
      # /usr/sbin/kctune tunable=value

    For example:


      # /usr/sbin/kctune vxfen_debug_sz=65536
  6. Start the VXFEN module:
      # /sbin/init.d/vxfen start
  7. Bring the service groups online:
      # hagrp -online oragrp -sys galaxy
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Product: Storage Foundation for Oracle RAC Guides  
Manual: Storage Foundation 4.1 for Oracle RAC Installation and Configuration  
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