Solaris Volume Manager Administration Guide

Scenario Background Information

Throughout this book, the scenarios and many examples relate to a single configuration. Although this configuration is small (to simplify the documentation), the concepts will scale to much larger storage environments.

Hardware Configuration

The hardware system is configured as follows:

There are 3 physically separate controllers (c0 — IDE, c1 — SCSI, and c2 — SCSI).
Each SCSI controller connects to a MultiPack that contains 6 internal 9–Gbyte disks (c1t1 through c1t6 and c2t1 through c2t6).
Each controller/terminator pair (cntn) has 8.49 Gbytes of usable storage space.
Storage space on the root (/) drive c0t0d0 is split into 6 partitions.

An alternative way to understand this configuration is shown in the following diagram.

Figure 5–1 Basic Hardware Diagram

Diagram shows system
with three controllers and attached disks.
Two controllers have six disks and the third
has a single disk with the root slice.

Physical Storage Configuration

The storage configuration before Solaris Volume Manager is configured is as follows:

The SCSI controller/terminator pairs (cntn) have approximately 20 Gbytes of storage space
Storage space on each disk (for example, c1t1d0) is split into 7 partitions (cntnd0s0 through cntnd0s6).

To partition a disk, follow the procedures explained in Formatting a Disk in System Administration Guide: Devices and File Systems.