Memorex LOCK - VERSION 2-24 Specifikace Strana 25

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BIM-EPIC Dataset Definitions (EDDs) Introduction
Chapter 1. Introduction 1-11
You can use the retention days field to specify permanent retention (PERM). When a disk
version is created with permanent retention, an expiration date of 2099366 is recorded in the
VTOC entry. When BIM-EPIC sees the 2099366 expiration date, it does not allow the
operator to display or delete the dataset in response to an INSUFFICIENT SPACE condition.
The cycles retention field specifies the minimum number of versions (cycles) to maintain at all
times. To maintain more than one version, you must also designate the dataset as a generation
dataset (see above).
DLA retention relates expiration to dataset use. Even if other retention criteria have expired,
the dataset cannot expire if it has been processed as input during the last n days.
Cycles Retention
Days after Last
Access (DLA)
Retention
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