Hitachi COMPUTE BLADE 500 SERIES Management Module Setup Manual page 94

• LPAR manager has several types of licenses such as the Essential license
and the Advanced license. If the active server blade uses the Advanced
license (Advanced model), the standby server blade also requires the
Advanced license. Make sure that the active and standby server blades
use the same type of LPAR manager license.
• When using Emulex network products (LAN/converged network) with the
standby server blade, apply the latest firmware version before
configuration.
• When configuring N+M cold standby with multiple server chassis, use the
same hardware configuration of switch modules. Especially if with
configuration where 10 Gb LAN switch module is installed in a server
chassis with the active server blade and 1 Gb LAN switch module in
another server chassis with the standby server blade, LAN bandwidth may
change at N+M failover to affect behavior on the OS, such as lower
network performance.
• When recovering N+M cold standby, make sure that an operating mode
(LP mode or Basic mode) for the standby server blade is the same as that
for the active server blade at N+M group registry. When changing the
operating mode for the standby server blade after N+M failover is
executed, make sure that the operating mode is returned to the original
mode before recovering N+M cold standby. If you try to recover N+M cold
standby with the changed operating mode for the standby server blade,
the following may occur.
- LPAR configuration may not be recovered correctly.
- Recovering N+M cold standby may fail.
• If Personality is set to FCoE for the Emulex 10 Gb CNA mezzanine card or
the onboard CNA (2 or 4 ports), N+M cold standby including the card is
not supported.
• The supported functionality of N+M cold standby including enabled
Emulex 10 Gb onboard CNA (4 ports) varies depending on the firmware
version. For the supported functionality, see
standby on page
• If the HCSM version is 8.1.1 or later, you can use IPv6 networking to
connect to HCSM. When configuring N+M cold standby with multiple
server chassis, select either IPv4 or IPv6 networking for all chassis to
connect to HCSM.
Tip:
• N+M cold standby can be configured over multiple system units.
• The active server blade and the standby server blade are not necessarily
installed in the same system unit.
• When building the N+M cold standby configuration, you need to purchase
the ServerConductor/BSM plus or HCSM. For details, ask our sales
person.
• For configuration supporting N+M cold standby with HCSM, see the
Hitachi Compute Systems Manager Function Release Schedule (FRS).
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Hitachi Compute Blade 500 Series Management Module Setup Guide
2-76.
Functional detail
Precondition for N+M cold