Hitachi COMPUTE BLADE 500 SERIES Management Module Setup Manual page 100

If the standby OS startup is not completed within the maximum allotted time
for "Host OS Startup" specified by the user, an error message saying that N
+M failover failed (KASV00212-E) is shown on the HCSM task result window
regardless of whether the standby OS has started up or not. Thus, even if N
+M cold standby failover is successful and the standby OS has completely
started up, the error message (KASV00212-E) may be displayed on the HCSM
task result window.
Standby OS startup completion takes longer depending on the server blade
configuration, such as CB 540A A1/B1 blade and SMP. Then, set an
appropriate time for the maximum allotted time for "Host OS Startup".
Precondition for N+M cold standby
The following system unit configurations are preconditions for the N+M cold
standby.
• SAN booting
• The active server blade and the standby server blade must be built the
same hardware configuration.
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Tip: If the active server blade and the standby server blade have different
CPU type, number of CPU, and Memory capacity, the N+M cold standby
failover can be possible. Confirm that the standby server blade can be
operated by pre-testing of failover.
• No expansion blades (PCI expansion blades and storage expansion
blades) are connected to the active server blade or standby server blade.
• None of internal HDD or USB Enablement Kit or SD Card Enablement Kit
are installed
• Various server blade models do not coexist within the N+M group.
(Example: coexistence of CB 520A A1 and CB 520H A1, or CB 520H A1
and CB 520H B1)
• When setting the N+M cold standby in LP mode, the server blade and
peripherals support LPAR manager.
• When setting N+M cold standby in LP mode, all firmware used on the
active server blade (the management module, server blade, and LPAR
manager firmware) must correspond to the firmware on the standby
server blade.
• When setting N+M cold standby in LP mode, set the following to the
standby server blade in advance to start LPAR manager at N+M failover.
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Hitachi Compute Blade 500 Series Management Module Setup Guide
CPU type, number of CPU
Memory capacity
Mezzanine card, I/O board module (type, installed slot)
Logical partitioning
Set LP mode on Web console.
LPAR manager firmware selection
Assign LPAR manager firmware on Web console.
Initial settings
Functional detail