N+M Cold Standby Structure - Hitachi COMPUTE BLADE 500 SERIES Management Module Setup Manual

• 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".
Note: See
restrictions.
Tip: The active server blade and the standby server blade must be same
hardware configuration and firmware version.
Hitachi Compute Blade 500 Series Management Module Setup Guide
Figure 2-9 Server blades in basic mode
Precondition for N+M cold standby on page 2-76
Functional detail
about
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