Figure 112: Online Maintenance: Permanent Use Of All Resources Of The Cod-Xsb - Fujitsu Siemens Computers SX series User Manual

Dynamic Reconfiguration
3. Permanent use of all resources of the CoD-XSB
The failure of hardware resources can be compensated for fully by puting XSBs 01-3 into
operation with all its resources. The entire procedure is illustrated with the figure below:
Normal operation
4 CPUs, 10 GB
Failure, reboot,
autom. recovery
and DR-connect of
CoD-XSB

Figure 112: Online maintenance: Permanent use of all resources of the CoD-XSB

Measures to be taken:
1. Performed by the service engineer or by the customer:
The spare-XSB 01-1 is added to the partition as a normal XSB with DR-connect, i.e. with
use of the main memory.
The partition works at 100% capacity until the next maintenance window. One CPU
remains unused and can, if required, be used as a CoD-CPU.
The subsequent measures are performed by the service engineer at a time selected by the
customer within a maintenance window:
2. The XSB 00-1 can be disconnected from the partition using DR-disconnect, in which
case the partition operates with 4 CPUs (3 BS2000-CPUs = 75%) and still with 100%
of the memory. The previously unused second CPU of XSB 01-1 is automatically put
into operation.
With the remaining resources, in terms of its RPF performance the partition corre-
sponds to the SX150-10C model.
3. Remove the system board, repair or replace and install the system board.
4. Start up XSB 00-1 with DR-connect, automatically taking the second CPU of XSB 01-1
out of service.
This restores the initial status for this partition with 100% use of the CPUs and, in the ideal
case, of the memory.
U41272-J-Z385-3-76
Functional scope, concepts and applications
Normal operation
with CoD-XSB
4 CPUs, 10 GB
DR-disconnect
and removal of
defective SB
Normal operation
with CoD-XSB
3 CPUs, 10 GB
Installation of SB and
startup of XSBs
Normal operation
4 CPUs, 10 GB
301