Sun Cluster 3.0 12/01 Software Installation Guide

Example--Sample File System Allocations

Table 1-2 shows a partitioning scheme for a cluster node that has less than 750 Mbytes of physical memory. This scheme will be installed with the Solaris operating environment End User System Support software group, Sun Cluster software, and the Sun Cluster HA for NFS data service. The last slice on the disk, slice 7, is allocated with a small amount of space for volume manager use.

This layout allows for the use of either Solstice DiskSuite software or VxVM. If you use Solstice DiskSuite software, you use slice 7 for the replica database. If you use VxVM, you later free slice 7 by assigning it a zero length. This layout provides the necessary two free slices, 4 and 7, and it provides for unused space at the end of the disk.

Table 1-2 Sample File System Allocation

Slice 

Contents 

Allocation (in Mbytes) 

Description 

/

1168 

441 Mbytes for Solaris operating environment software. 

100 Mbytes extra for root (/).

100 Mbytes extra for /var.

25 Mbytes for Sun Cluster software.  

55 Mbytes for volume manager software. 

1 Mbyte for Sun Cluster HA for NFS software. 

25 Mbytes for the Sun Management Center agent and Sun Cluster module agent packages. 

421 Mbytes (the remaining free space on the disk) for possible future use by database and application software. 

swap 

750 

Minimum size when physical memory is less than 750 Mbytes. 

overlap 

2028 

The entire disk. 

/globaldevices

100 

The Sun Cluster software later assigns this slice a different mount point and mounts it as a cluster file system. 

unused 

Available as a free slice for encapsulating the root disk under VxVM. 

unused 

 

unused 

 

volume manager 

10 

Used by Solstice DiskSuite software for the replica database, or used by VxVM for installation after you free the slice.