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Solaris Volume Manager Administration Guide

How to Increase the Number of Default Disk Sets

This task shows you how to increase the number of disk sets from the default value of 4.

Caution – Caution –

Do not decrease the number of default disk sets if you have already configured disk sets. Lowering this number could make existing disk sets unavailable or unusable.

  1. Check the prerequisites (Prerequisites for Troubleshooting the System).

  2. Edit the /kernel/drv/md.conf file.

  3. Change the value of the md_nsets field. Values up to 32 are supported.

  4. Save your changes.

  5. Perform a reconfiguration reboot to build the volume names.


    # boot -r

Example—md.conf File

Here is a sample md.conf file that is configured for five shared disk sets. The value of md_nsets is six, which results in five shared disk sets and the one local disk set.


#
#
#pragma ident   "@(#)md.conf    2.1     00/07/07 SMI"
#
# Copyright (c) 1992-1999 by Sun Microsystems, Inc.
# All rights reserved.
#
name="md" parent="pseudo" nmd=128 md_nsets=6;
# Begin MDD database info (do not edit)
...
# End MDD database info (do not edit)