In preparation for alternative boot environment creation, mirror system disks. This sub-section provides an example of mirroring system disks in the configuration as shown in the figure below.
Information
System disk mirroring is not required. A configuration without c1t0d0 and c1t0d1 in the following figure is also available. However, the mirroring configuration as shown in the following figure is recommended for systems that require high availability.
Figure 6.1 System Disk Configuration
The disk areas (proxy groups) for backing up system disks are necessary.
Information
Mirroring of the disk areas for backup is not required. A configuration without c3t0d0 and c3t0d1 in the following figure is also available. However, the mirroring configuration as shown in the following figure is recommended for systems that require high availability.
Figure 6.2 Proxy Group Configuration
Figure 6.3 Joining Proxy Groups
Note
ETERNUS Disk Storage System SAN Boot Environment
When creating an alternative boot environment with the Advanced Copy function, disk areas for backup must be in a mirroring configuration with the multiplicity of one or be a single volume. If disk areas for backup are in a mirroring configuration with the multiplicity of two or more, the soft copy function is used instead of the Advanced Copy function. For details, see "A.2.23 Using the Advanced Copy Function in a Proxy Configuration."
