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Chapter 6 HPSS Configuration
HPSS Installation Guide September 2002 283
Release 4.5, Revision 2
Table 6-4 Migration Policy Configuration Variables
Display Field Name Description Acceptable Values
Default
Value
Policy ID A unique ID associated
with the Migration Policy.
Any unique, non-zero, positive
integer value.
Last
configured
Migration
Policy ID plus
1.
Policy Name The descriptive name of a
Migration Policy.
Any character string up to 31 bytes
in length.
Migration
Policy ID
Advice: A policy’s descriptive name should be meaningful to local site
administrators and operators.
Last Read Interval An integer that determines
whether a file is a
candidate for migration.
The file must not have
been read in the last
<interval> minutes. This
applies to tape volume
migration and tape file
migration with purge only.
0-1000000 (one million) 60
Advice: Refer to Section 2.8.1.2 for more information on tape migration.
Last Update Interval An integer that determines
whether a file is a
candidate for migration.
The file must not have
been written to in the last
<interval> minutes to be a
candidate.
0-1000000 (one million) 60
Free Space Target The desired percentage of
purgeable disk or free tape
space to have when
migration is completed.
The migration will be
terminated when this goal
is reached.
Any integer value between 1 and
100.
100
Request Count The number of parallel
migration threads which
will be run during
migration. This value
applies to disk migration
and tape file copy
migration only.
Any positive 32-bit integer value
greater than 0.
1