216 IBM ^ zSeries 990 Technical Guide
LP2 has six shared (SHR) logical CPs and two reserved CPs defined.
Logical partition LP3 is defined with one shared logical CP, but is not activated.
After the upgrade, including two IFL processors, the partition LP3 is redefined to have two
dedicated logical IFLs. The I/O definitions for this logical partition can be dynamically done by
LP1 or LP2, if any of them has the Dynamic I/O Configuration OS support. Then partition LP3
can be activated and use the IFL processors. By using a previously defined logical partition,
this upgrade is non-disruptive.
Dedicated, shared partitions, and ICF upgrade
Figure 8-15 shows a 2084-B16 software model 309 with one Internal Coupling Facility (ICF).
This example is similar to the previous one, but now includes a Coupling Facility (CF)
partition.
Figure 8-15 Dedicated, shared logical partitions and ICF upgrade example
This two-book server configuration has nine CPs, one ICF and six spare PUs. The concurrent
hardware upgrade adds one more ICF processor, using one available spare PU on the
installed books.
There are three activated logical partitions: LP1 has three dedicated (DED) logical CPs and
two reserved CPs defined, LP2 has six shared (SHR) logical CPs and two reserved CPs
defined, and LP3 is a CF partition with one dedicated (DED) ICF and one reserved ICF
defined.
CP0 CP1 CP2 CP3
Spare ICF0Spare Spare
CP4 CP5 CP6
SpareSpare Spare
Book 0 Book 1
Logical
CP0
DED
Logical
CP1
DED
Logical
CP2
DED
CP7 CP8
LP1
LP2
2084-B16
Model 309
+ 1 ICF
Res
CP
Res
CP
LP3
Logical
CP0
SHR
Logical
CP1
SHR
Logical
CP2
SHR
Res
CP
Res
CP
Logical
CP3
SHR
Logical
CP4
SHR
Logical
CP5
SHR
Logical
ICF0
DED
Res
ICF
CP0 CP1 CP2 CP3
Spare ICF0Spare
CP4 CP5 CP6
SpareSpare Spare
Book 0 Book 1
Logical
CP0
DED
Logical
CP1
DED
Logical
CP2
DED
CP7 CP8
LP1
LP2
2084-B16
Model 309
+ 2 ICFs
Res
CP
Res
CP
LP3
Logical
CP0
SHR
Logical
CP1
SHR
Logical
CP2
SHR
Res
CP
Res
CP
Logical
CP3
SHR
Logical
CP4
SHR
Logical
CP5
SHR
Logical
ICF0
DED
ICF1
Logical
ICF1
DED
