Sun Cluster 2.2 Software Installation Guide

B.2.15 How to Repartition Drives in a Diskset

  1. Use the format(1M) command to change the disk partitioning for the majority of drives as shown in Table B-2.

    Table B-2 Multihost Disk Partitioning for Most Drives

    Slice 

    Description 

    2 Mbytes, reserved for Solstice DiskSuite 

    UFS logs 

    remainder of the disk 

    overlaps Slices 6 and 0 

    In general, if UFS logs are created, the default size for Slice 6 should be 1 percent of the size of the largest multihost disk found on the system.


    Note -

    The overlap of Slices 6 and 0 by Slice 2 is used for raw devices where there are no UFS logs.


  2. Partition a drive on each of the first two controllers in each of the disksets as shown in Table B-3.

    In the following table, we partition the first drive on the first two controllers as shown. You are not required to use the first drives or the first two controllers, if you have more than two.

    Table B-3 Multihost Disk Partitioning-First Drive, First Two Controllers

    Slice 

    Description 

    2 Mbytes, reserved for Solstice DiskSuite 

    2 Mbytes, UFS log for HA administrative file systems 

    9 Mbytes, UFS master for HA administrative file systems 

    UFS logs 

    remainder of the disk 

    overlaps Slices 6 and 0 

    Partition 7 should be reserved for use by Solstice DiskSuite as the first 2 Mbytes on each multihost disk.