Redundancy; Redundancy Of Power Supply; Redundancy Of Management Module - Hitachi CB 520H A1 User Manual

Redundancy

Redundancy of Power Supply

CB 500 Server Chassis can equip maximum 4 power supply modules in the
module slot. Those modules have to be equipped with numbers for required
capacity of power supply.
CB 500 supports redundant configuration of power supply modules. That
configuration is strongly recommended for protecting failure of power supply
when using the LPAR manager environment.

Redundancy of Management Module

Note:
• The attention items when a management module is wrong in a non-
redundant configuration are as follows. In addition, it is strongly
recommended that the configuration information of management module
is backed up in a non-redundant configuration.
LPAR manager
Firmware
LPAR manager
configuration
information
3-2
Hitachi Compute Blade 500 Series Logical partitioning manager User's Guide
Table 3-1 Attention Items in a non-Redundant Configuration
Attention Items
LPAR managers installed on the management
module are lost.
To use a previously installed LPAR manager
firmware after a failure or an error occurs on the
management module, it is necessary to install
the LPAR manager firmware
So, the operation of server blades cannot restart
when the LPAR manager firmware is not installed
after the maintenance agent installs a new
management module.
To install an LPAR manager firmware version
which has been used before a failure or an error
occurs on the management module, it is
necessary that the LPAR manager firmware
version is recorded in management module.
The backup file for the configuration information
of management module can be used as a record.
However, the backup file for the configuration
information of management module must be
retrieved by a user.
The LPAR manager configuration information
saved in the management module is lost.
Then, the LPAR manager configuration
information can be restored when the
configuration information of management
module is backed up.
High Reliability Functions
Prevention
Configuring
redundant
management
modules
Configuring
redundant
management
modules
Backing up the
configuration
information of
management
module
Backing up the
configuration
information of
management
module