5486wrkperf.fm Draft Document for Review October 18, 2004
52 IBM Eserver i5 and iSeries System Handbook
be activated for a period of 7 by 24 hours of system operation. If powered off, the
clock does not increment.
Each model offers a number of
startup processors that are in active status and a
set of
inactive processors that are in standby status. To permanently activate one
or more inactive processor, place an MES order for the desired quantity of the
model-specific activation code, as follows:
#1604 CUoD Activation for the Model 840
#1605 CUoD Activation for the Model 830
#1610 890 CUoD Activation for the Model 890
Ordering a CUoD activation feature generates an activation code, which is
posted on a Web site and mailed to the customer. This activation code must be
entered on the IBM Eserver i5 or iSeries server console.
For further details, refer to the planning guides for Capacity Upgrade on Demand
or On/Off Capacity on Demand on the Web at:
http://www.ibm.com/servers/eserver/iseries/ondemand/cod
Capped and uncapped partitions
Partitions in a shared processing pool can have a sharing mode of capped or
uncapped. A
capped partition indicates that the logical partition (LPAR) will never
exceed its assigned processing capacity.
Uncapped partitions increase the
processing power for a partition and the workload demand needed at a particular
time assuming you have free resources in a shared pool.
Use capped mode when a software application never requires more than a
certain amount of processing power. Any unused processing resource is used
only by the uncapped partitions in the shared processing pool.
Uncapped capacity is limited to the minimum of the number of virtual processors
assigned to the partition and the capacity of the shared pool. If two partitions
need additional resources at the same time to complete a job, the server can
distribute the unused processing resources to both partitions. This distribution
process is determined by the uncapped weight of each of the partitions.
Uncapped weight is a number that you set for each uncapped partition in the
shared processing pool. By setting the uncapped weight, any available unused
capacity is distributed to contending LPARs in proportion to the established value
of the uncapped weight.
Note: The 830, 840, and 890 processors (#2487 and #2488) are withdrawn
from marketing
.
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