Planning the Global Devices and Cluster File Systems

The following information applies to this update release and all subsequent updates.

Mount Information for Cluster File Systems (5/02)

The following change was introduced in the Sun Cluster 3.0 5/02 update release and applies to this update and all subsequent updates to Sun Cluster 3.0 software.

• VxFS mount requirement - Globally mount and unmount a VxFS file system from the primary node (the node that masters the disk on which the VxFS file system resides) to ensure that the operation succeeds. A VxFS file system mount or unmount operation that is performed from a secondary node might fail.

Guidelines for Solstice DiskSuite Software (5/02)

The following corrections were introduced in the Sun Cluster 3.0 5/02 update release and applies to this update and all subsequent updates to Sun Cluster 3.0 software.

• /kernel/drv/md.conf settings -

  • nmd - The maximum number of metadevices allowed per Solstice DiskSuite diskset is 1024. The maximum number of metadevices allowed per Solaris Volume Manager diskset is 8192.

  • md_nsets - The maximum number of disksets allowed per cluster is 31, not including the one for private disk management.