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Quick DASD Allocation System (QDAS) Defining Disk Volumes to QDAS (TSIVDEF)

Chapter 2. Installing the Basic System 2-55

Defining Disk Volumes to QDAS (TSIVDEF)

You define volumes to QDAS with the TSIVDEF macro. Sample JCL can be found on page

2-56 and as the TSIVDEF.Z member in the BIM-EPIC installation sublibrary.

TSIVDEF VOL=volser,MAP=n,SHARE=

{}

YES

,LAST=

{}

YES

Parameter Required? Values Default

VOL Yes 6 characters None

MAP Yes 1-32767 (7081 or smaller if

shared. Refer to DASD

types, above)

None

SHARE No NO or YES NO

LAST No NO or YES NO

VOL specifies the volume serial number of the disk volume to be placed under QDAS control.

MAP specifies the maximum number of extents (not files) to support on the disk volume being

defined. If the number of extents on the volume ever exceeds the number you specify here,

QDAS issues an error message, and the volume is removed from QDAS control.

SHARE indicates whether this volume is to be shared by multiple VSE machines. If YES,

you must create the QDAS Share File for the volume (see above), and all machines accessing

the volume must use QDAS.

LAST indicates whether this is the last volume to be defined to QDAS. Specify LAST=YES

on the statement that defines the last volume.

When SHARE=YES, the TSIVDEF MAP value must not be greater than the TSIVCLR MAP

value for the same volume. In addition, the TSIVDEF MAP value for any QDAS-controlled

volume must not be greater than the TSIDMAP value in the TSIDPOL disk pool definition

phase. See 2-47 in this manual for more information.

If Share Files created under BIM-EPIC Release 6.3 are to be shared with VSE CPU’s that

use BIM-EPIC 6.2 or earlier, refer to the WARNINGS in the “Creating QDAS Share Files”

section, above

Description

Syntax

Parameters

WARNING!

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Memorex LOCK - VERSION 2-24 Spécifications Page 83