Hardware Definition Using Hcd (Mvs/Esa); Table 4.4 Hcd Definition For 64 Lvis; Table 4.5 Hcd Definition For 256 Lvis - Hitachi 9900 User And Reference Manual

4.2.2

Hardware Definition Using HCD (MVS/ESA)

The Hardware Configuration Definition (HCD) utility can be used to define the 9900
subsystem in an MVS/ESA environment. The HCD procedures for 3990 and 2105 controller
emulation types are described below. FICON™ support requires 2105-F20 emulation.
3990 Controller Emulation. To define a 9900 subsystem with 64 or fewer LVIs, use the same
procedure as for an IBM
hardware definition for a 9900 subsystem with more than 64 LVIs (see Table 4.5) is different
than that for an IBM
Table 4.4 HCD Definition for 64 LVIs
Parameter
Control Frame:
Control unit number
Control unit type
Channel path IDs
Unit address
Number of units
Array Frame:
Device number
Number of devices
Device type
Connected to CUs
Table 4.5 HCD Definition for 256 LVIs
Parameter
Control Frame:
Control unit number
Control unit type
Channel path IDs
Unit address
Number of units
Array Frame:
Device number
Number of devices
Device type
Connected to CUs
*Note: The NOCHECK function was introduced by APAR OY62560. Defining the 9900 as a single control unit allows all channel
paths to access all DASD devices.
®
3990-6, 3990-6E, or 3990-3 subsystem (see Table 4.4). The
®
3990 subsystem.
Value
Specify the control unit number.
3990-6 or 3990-6E (using 3990-6 emulation)
3990-3 (using 3990-3 emulation)
Specify ExSA™ or FICON™
00 (ExSA™ or FICON™)
64
Specify the first device number.
64
3390
Specify the control unit number(s).
Value
Specify the control unit number.
NOCHECK*
Use UIM 3990 for more than 128 logical paths
Use UIM 3990-6 for 128 or fewer logical paths
Specify ExSA™ or FICON™
00 (ExSA™ or FICON™)
256
Specify the first device number.
256
3390
Specify the control unit number(s).
Hitachi Lightning 9900™ User and Reference Guide 59