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70 Chapter 4
Configuring and Using the 9900 Subsystem
4.2.3 Defining the 9900 to VM/ESA
®
Systems
64 or Fewer LVIs: To define a 9900 with less than or equal to 64 LVIs to a VM/ESA
®
system,
use the same procedure as for an IBM
®
3990-6, 3990-6E, or 3990-3 subsystem. To define a
9900 with more than 64 LVIs to VM/ESA
®
, enter the LVI address range, storage type, and
sharing option for the subsystem as shown below (the address range varies for each
installation).
[Address Range] TYPE DASD SHARED YES
More than 64 LVIs: To define a 9900 with more than 64 LVIs to VSE/ESA, use the same
procedure as for an IBM
®
3990-6, 3990-6E, or 3990-3 subsystem. For 9900 subsystems with
more than 64 LVIs, the ADD cuu:cuu ECKD statements are the same as for the IBM
®
3390.
Caution: There may be APAR requirements at different versions of the VM software. In
addition, certain requirements apply when VM is supporting guests (e.g., OS/390
®
) that can
run 2105 native. For further information, please refer to the IBM
®
documentation.
4.2.4 Defining the 9900 to TPF
The 9900 supports the IBM
®
Transaction Processing Facility (TPF) and Multi-Path Locking
Facility (MPLF) functions in either native mode or under VM. MPLF support requires TPF
version 4.1 or higher, and RAID-5+ and 3390-3/3R LVIs are supported. The 9900’s TPF/MPLF
capability enables high levels of concurrent data access across multiple channel paths. For
further information on TPF and MPLF operations, please refer to the following IBM
®
documentation:
Storage Subsystem Library, 3390 Transaction Processing Facility Support RPQs, IBM
®
document number GA32-0134-03.
Storage Subsystem Library, 3990 Storage Control Reference for Model 6, IBM
®
document
number GA32-0274-03.
Note on 2105 emulation: There are available PTFs to implement exploitation mode for TPF
version 4.1. For further information, please refer to the IBM
®
documentation.