B.2.11 Creating Disksets

A diskset is a set of multihost disk drives containing Solstice DiskSuite objects that can be accessed exclusively (but not concurrently) by multiple hosts. To create a diskset, root must be a member of Group 14.

When creating your disksets, use the following rules to ensure correct operation of the cluster in the event of disk enclosure failure:

1. If exactly two "strings" are being used, the diskset should have the same number of physical disks on the two strings.

For the two-string configuration, mediators are required. Refer to the Sun Cluster 2.2 System Administration Guide for details on setting up mediators.

1. If more than two strings are being used, for example three strings, then you must ensure that for any two strings S1 and S2, the sum of the number of disks on those strings exceeds the number of disks on the third string S3. As a formula: count(S1) + count(S2) > count(S3).