User`s guide

4-19
Monitoring the System
Hardware Exclusion Guidelines
Hardware Element Exclusion Guidelines
IMPORTANT:
To ensure server operation and availability, the following core hardware elements
MUST NOT be excluded from the domain:
• IOB_0,
• IOB_0 HubLink_1,
• IOR_0,
• QBB FanBox_0.
IOB • IOB_0 CANNOT be excluded from the domain. The domain
will not power up if IOB_0 is excluded.
Note:
If IOB_0 is excluded, IOR_0 will be automatically excluded.
• IOB_1 can be excluded, but connected peripherals will no
longer be accessible.
Note:
If IOB_1 is excluded, IOR_1 will be automatically excluded.
IOB HubLink • All IOB HubLinks can be excluded, but connected
peripherals will no longer be accessible.
Note:
If IOB HubLink_1 is excluded, system disks will no longer be
accessible.
IOR • IOR_0 CANNOT be excluded from the domain. The domain
will not power up if IOR_0 is excluded.
• IOR_1 can be safely excluded from the domain, but
connected peripherals will no longer be accessible.
QBB • At least one QBB must be “included” in the domain.
CPU • At least one CPU must be “included” in a QBB.
DPS • Only one DPS unit can be safely excluded from the domain
at a given time. At least two DPS units are required to
ensure server operation.
QBB FanBox • QBB FanBox_0 CANNOT be excluded.
If QBB FanBox_0 is excluded, QBB_0, IOB_0 and IOR_0
will be automatically excluded. The domain will not power up
if IOB_0 is excluded.
• If QBB FanBox_3 is excluded, QBB_3 and IOB_1 will be
automatically excluded. Peripherals connected to IOB_1 will
no longer be accessible.
• If QBB FanBox_1 and/or QBB FanBox_2 are excluded,
QBB_1 and/or QBB_2 will be automatically excluded.
SPS FanBox • Only one SPS FanBox can be excluded from the domain at
a given time. One SPS FanBox is required to ensure server
operation.
Table 18. Hardware exclusion guidelines