Guidelines For Defining The Logical Control Unit For The Ds8000 - IBM DS8000 User Manual

* DEFINE 2107-9A2 LOGICAL CONTROL UNIT 4
*
**********************************************************************
CNTLUNIT CUNUMBR=7004,PATH=(74,75,FC,FD),UNITADD=((00,256)),
*********************************************************************
* DEFINE 3390-3 BASE AND ALIASES ADDRESS ON LOGICAL CONTROL UNIT 4 *
* 32 BASE ADDRESS, 7 ALIASES PER BASE
*
**********************************************************************
IODEVICE ADDRESS=(9400,032),CUNUMBR=(7004),STADET=Y,UNIT=3390B
IODEVICE ADDRESS=(9420,224),CUNUMBR=(7004),STADET=Y,UNIT=3390A
**********************************************************************
* DEFINE 2107-9A2 LOGICAL CONTROL UNIT 5
*
**********************************************************************
CNTLUNIT CUNUMBR=7005,PATH=(74,75,FC,FD),UNITADD=((00,256)),
LINK=(24,2D,34,3D),CUADD=5,UNIT=2107
**********************************************************************
* DEFINE 3390-3 BASE AND ALIASES ADDRESS ON LOGICAL CONTROL UNIT 5 *
* 32 BASE ADDRESS, 3 ALIASES PER BASE
*
**********************************************************************
IODEVICE ADDRESS=(9500,032),CUNUMBR=(7005),STADET=Y,UNIT=3390B
IODEVICE ADDRESS=(95A0,096),CUNUMBR=(7005),STADET=Y,UNIT=3390A
**********************************************************************

Guidelines for defining the logical control unit for the DS8000

You can use these guidelines to define the logical control unit for the DS8000.
You need the following information in order to define the logical control unit
(LCU):
v Which devices (arrays) are 3380 format, and which are 3390 format
v Which devices have PAVs, and which do not
v How many devices you define to a given LCU
Notes:
1. An LCU is equivalent to a logical subsystem (LSS). Like an LSS, an
2. Every device has a single unit address (in range 00 - FF).
3. An LCU can manage a maximum of 256 devices and identifies a
Update the I/O configuration with the appropriate devices, using the following
guidelines:
v Three device types are possible for 3380: 3380, 3380B, and 3380A.
v Three device types are possible for 3390: 3390, 3390B, and 3390A.
v Any non-PAV 3380 is a 3380, regardless of model.
v Any non-PAV 3390 is a 3390, regardless of model.
v Any 3380 PAV base is a 3380B.
v Any 3390 PAV base is a 3390B.
v Any alias of a 3380B, regardless of model, is a 3380A.
v Any alias of a 3390B, regardless of model, is a 3390A.
LINK=(24,2D,34,3D),CUADD=4,UNIT=2107
LCU can have a maximum of 256 logical devices or volumes.
device based on the unit address.
Chapter 8. Optional feature codes for the DS8000
*
*
*
*
*
*
*
*
*
*
105