HP Mainframe Connectivity Design Guide

Table 67 P9500 configuration rules (continued)
Description
Rule
nl
number
The LPAR uses a logical path to communicate with the LCU. This path includes the CHPID on the
mainframe, the FICON port on the CU, and any ports and directors in the path. There can be up to
eight logical paths from an LPAR to any LCU.
12
The system programmer assigns one or more 4-digit hexadecimal SSIDs to your storage subsystem. The
SSID is assigned to a range of either 64 volumes or 256 volumes. In a P9500 storage system, the valid
13
range for the SSID is x'0004' though x'FEFF'. HP recommends using one SSID per LCU, with a range
of 256 volumes per SSID.
P9500 configuration examples
This section provides examples of P9500 configurations with and without PAVs.
P9500 configuration without PAVs
A P9500 DASD array configured to provide 2,048 mainframe volumes requires a minimum of 8
LCUs, each with 256 device addresses.
Table 68 (page 108) describes a sample P9500 configuration without PAVs. All numbers are
hexadecimal unless noted otherwise.
Table 68 Sample P9500 configuration without PAVs
Base or
PAV
SSID
2
Device
nl
addressLCU
UNITADD
(starting
nl
CUADDCUNUMBER
Device
nl
number
address,
range
1
)
Base
1000
00–FF
00
00,256
0010001000–10FF
1001010111001100–11FF
1002020212001200–12FF
1003030313001300–13FF
1004040414001400–14FF
1005050515001500–15FF
1006060616001600–16FF
1007070717001700–17FF
1
The range is a decimal number.
2
The SSID value is supplied by the system programmer.
108 P9500 storage system rules