Performance Slowdown In Management Path - Hitachi Compute Blade 2000 User Manual

Performance slowdown in management
path
When the processor usage rate is significantly high in the LPAR manager network
communication due to the heavy load on the shared NIC, performance in the LPAR
manager management path can slow down and cause the following problems.
It takes longer, six minutes or longer, to save LPAR manager configuration

information.
It takes longer, 30 minutes or longer for 1Gbps interface, to upload the firmware

update in operation.
It takes longer for HvmSh to respond to a command, or timeout occurs.

Registering or updating LPAR manager with HVM navigator fails due to the

communication error.
Operation to LPAR manager from SC/BSM fails due to the timeout.

LP Web system, logical VGA snapshot, is not displayed, or refreshing the display

takes longer.
It takes longer, five minutes or longer, to collect LPAR manager dumps.

You can find a value of the processor usage rate in the LPAR manager network
communication as a value of SYS2 on the LPAR Usage screen. When a problem shown
above occurs, check the SYS2 value on the LPAR Usage screen. If 1800 ms or larger is
shown as Dsp (ms) in SYS2, the heavy load on the shared NIC is supposed to cause the
problem.
When a heavy load on the shared NIC causes such a problem, reconfigure the network
configuration of the shared NIC and the load on it.
When the heavy load is temporary, perform the failed operation again after the load is
relieved.
Note on Oracle IPMI
Do not use Oracle IPMI, which might cause trouble such as guest OS hangup.
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