Memorex LOCK - VERSION 2-24 Informations techniques télécharger pdf (Page 233)

100

101

DCB Parameter

User Reference

Use Pursuant to Company Instructions

6-17

DEN Specifies a recording density for tape datasets. Valid

density codes are:

Code Density

2 800 bpi

3 1600 bpi

4 6250 bpi

A 8809 streaming short gap

B 8809 start-stop long gap

C 8809 start-stop short gap

D 8809 streaming long gap

E 3480/3490 non-IDRC buffered write mode

F 3480/3490 IDRC buffered write mode

G 3424/9348 1600 bpi buffered write mode

H 3424/9348 1600 bpi unbuffered write mode

I 3424/9348 6250 bpi buffered write mode

J 3424/9348 6250 bpi unbuffered write mode

K 3490E cartridge device

L 3490E IDRC cartridge device

M 3592 cartridge device

¬ (X'5F') None specified - use default density

Codes A through M are BIM-EPIC extensions and are

not recognized by MVS.

DSORG Specifies the organization of the dataset. DSORG is

required for direct access and indexed sequentially

datasets only. Valid codes are:

Code Organization

DA or

DAU

Direct access

IS or ISU Indexed sequential

PS or PSU Sequential

When using MVS, there are two options for each type of

dataset organization. Specifying U indicates that the

dataset is unmovable, so the same extents are used every

time. When PSU, DAU, or ISU is specified and the

dataset is a disk work dataset, BIM-EPIC allocates the

same extents to the dataset that it already occupies. If

you are going to convert to MVS, choose your dataset

organization carefully.

Subparameter Definition

1 2 ... 228 229 230 231 232 233 234 235 236 237 238 ... 567 568

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Memorex LOCK - VERSION 2-24 Informations techniques Page 233

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