Hitachi Compute Blade 500 Series - N+M Cold Standby Structure

• If you want to switch to the standby server blade when a watchdog timer
times out, you must configure the necessary settings for the management
modules.
N+M cold standby structure
This section describes N+M cold standby structure.
Server blade in basic mode
When switching N+M cold standby in basic mode, the standby server blade
inherits the configuration from the active server blade. Based on the
configuration information, the server blade OS is booted from the same disk
(logical unit [LU]), and the standby server blade can restart the same OS
environment as that of the active server blade. These inheriting contents
called "configuration information of server blade" or "configuration
information".
Figure 2-9 Server blades in basic mode
Note: See Precondition for N+M cold standby on page 2-76
about
restrictions.
Tip: The active server blade and the standby server blade must be same
hardware configuration and firmware version.
Functional detail
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Hitachi Compute Blade 500 Series Management Module Setup Guide