IBM z13s, Technical Manual

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Chapter 8. System upgrades
325
An LPAR can dynamically take advantage of a memory upgrade if reserved storage was
defined to that LPAR. The reserved storage is defined to the LPAR as part of the image
profile. Reserved memory can be configured online to the LPAR by using the LPAR dynamic
storage reconfiguration (DSR) function.
DSR enables a z/OS OS image and z/VM partitions to add reserved storage to their
configuration if any unused storage exists. The nondisruptive addition of storage to a z/OS
and z/VM partition necessitates that pertinent OS parameters have been prepared. If
reserved storage has not been defined to the LPAR, the LPAR must be deactivated, the
image profile changed, and the LPAR reactivated to enable the additional storage resources
to be available to the OS image.
8.3.3 Preplanned Memory feature
The Preplanned Memory feature (FC 1996 or FC 1993) enables you to install memory for
future use:
򐂰 FC 1996 specifies memory to be installed but not used. Order one feature for each 16 GB
that will be usable by the customer.
򐂰
FC 1899 is used to activate previously installed preplanned memory, and can activate all
the preinstalled memory or subsets of it. For each additional 16 GB of memory to be
activated, one FC 1899 must be added, and one FC 1996 must be removed.
򐂰 FC 1993 specifies memory to be installed but not used. Order one feature for each 8 GB
that will be usable by the customer.
򐂰 FC 1903 is used to activate previously installed preplanned memory, and can activate all
the preinstalled memory or subsets of it. For each additional 8 GB of memory to be
activated, one FC 1903 must be added, and one FC 1993 must be removed.
See Figure 8-3 for details of memory configurations and upgrades for a z13s Model N10.
Figure 8-3 Memory sizes and upgrades for the N10
N10 Physical Memory RAIM GB
Addressable Memory GB Client
GB
Increment
GB
32 RAIM (2 x 16GB)-
128 for HSA (40) + Client (88)
64
72
80
88
8
64 RAIM (2 x 32GB)-
256 for HSA (40) + Client (216)
120
152
184
216
32
128 RAIM (2 x 64GB)-
384 for HSA (40) + Client (344)
248
280
312
344
32
128 RAIM (2 x 64GB)-
512 for HSA (40) + Client (472) 408
472
64
256 RAIM (2 x 128GB)-
640 for HSA (40) + Client (600) 536
600
64
256 RAIM (2 x 128GB)
1024 for HSA (40) + Client (984)
728
856
984
128