Availability Of Shared Fc; Timeout In Saving Configuration - Hitachi CB 520H A1 User Manual

• When even one LPAR is in an activate mode, an addition and deletion of
shared NIC cannot be executed. When changing a configuration of shared
NIC, all the LPARs need to be in a Deactivate mode.
Therefore set up the configuration of shared NIC before LPAR is in an
activate mode (recommended)
• When a failure of link down occurs in a physical NIC, shared NICs that
share the physical LAN controller where the failure occurred can no longer
communicate with the external network or other LPARs. Moreover, when
the hardware failure which can be automatic recovery may become
impossible temporarily. In this case, since the status which cannot
communicate continues for about 60seconds, some applications may
terminate by abnormality communication.
Therefore, it recommends making time of recovery of a communication
failure into sufficient value, or making the system redundancy.
• At the time of LPAR manager booting, force recovery and unexpected
rebooting, or unexpected rebooting external equipment may detect a
temporary link down of shared NIC.

Availability of Shared FC

The following table shows the availability of shared FC under the connection
configurations.
Connected to
the storage via
FC switch
module

Timeout in Saving Configuration

Timeout time for saving configuration is 12 minutes. However, timeout might
occur in saving the configuration, if LPAR manager is in a high load status.
You can confirm the status of LPAR manager load by the value of SYS2 on the
LPAR Usage screen.
It is assumed that the LPAR manager is in a high load status if the value of
Dsp(ms) on SYS2 is more than 1800ms. If the high load is temporary,
causing the timeout in saving configuration, please save the configuration
again after the load is decreased.
10-12
Hitachi Compute Blade 500 Series Logical partitioning manager User's Guide
Table 10-6 Availability of the shared FC
Connection configuration
FC switch module
supporting NPIV
FC switch module
not supporting
NPIV
Notes
Availability of shared FC
8Gbps FC
adapter
PtoP Connection Available
FC-AL (Loop) Not Available
Connection
PtoP Connection Not Available
FC-AL (Loop) Not Available
Connection
16Gbps FC
adapter
Available
Not Available
Not Available
Not Available