Base management controller (bmc) – Hitachi 1000 User Manual
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BladeSymphony 1000 Architecture
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• Panel control
• Log information management within BladeSymphony 1000 (RC logs, SEL, SVP logs, etc.).
• SVP hot standby configuration control
• Server Conductor (server management software) interaction function. (Including a function for
emulating the PCI-version SVP function.)
• HA monitor (cluster software) interaction function.
• Management interface (SVP console (Telnet/CLI, RS232C/CLI), SNMP)
• Assist function (E-mailing to the maintenance center)
BladeSymphony 1000 implements the functions of the SVP card through software emulation by BMC
and SVP over fast Ethernet and I2C connections, as shown in Figure 29.
Figure 29. Fast Ethernet and I2C connections in SVP management interface
Base Management Controller (BMC)
One instance of BMC is installed for each CPU module primarily to take charge of management within
the physical partition (including a single CPU module). Only one instance of SVP is active throughout
the system, managing the entire system in cooperation with BMC. SVP and BMC communicate with
each other via a SVP build-in 100 BASE-TX LAN. In the case of the Intel Itanium Server Blade, a BMC
on the primary CPU module operates as the representative of BMCs present in the partition. This BMC
is referred to as the primary BMC.
Blade Symphony
Server
0
1
BMC
2
BMC
3
BMC
4
BMC
5
BMC
6
BMC
7
LAN SW
SVP
Switch &
Management
Module
SVP
LAN
LAN
LAN
LAN
BMC
Server
Server
Server
Server
Server
Server
Server
Switch &
Management
Module
LAN SW
BMC
I/O
Module
I/O
Module