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6.8 Backups
6.8
Backups
This section describes backups.
To avoid data destruction from hard disk errors or other causes, create backups
regularly.
Detailed information for creating and restoring data backups is provided in the
following documents:
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For instructions on backing up the partitions in the PRIMEPOWER900:
Section 7.5.4, “Backup and restore of system volume”, in the “System Console
Software User's Guide”.
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For instructions on backing up the SMC:
Section 8.2, “Creating Backups”.
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It is strongly recommended that users create a backup of the SMC system disks.
If restoring system disks is required for hard disk recovery, contact a certified
service engineer for recovery assistance. If a hard disk failure occurs, give the
DAT cartridge containing the latest backup of the system disk to a certified
service engineer.
6.9
Configuring for the Fast Memory Mode
PRIMEPOWER900 provides an expanded interleave mode and a 4CPU mode for
enabling the fast memory mode.
This section contains an overview, explains hardware conditions, setup, and provides
notes regarding the extended interleave mode and the 4CPU mode.
6.9.1
Expanded interleave mode
(1)
Overview
Memory modules need to be mounted on the target system board in units of memory
groups, each of which consists of eight memory modules.
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Normal interleave mode
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Extended interleave mode
- Extended 1-SB interleave mode
- Extended 2-SB interleave mode
