Note:
Media
type
JB
is
not
supported
with
VTS.
Table
13.
Free
Storage
Threshold
(GB)
for
JA-,
JB-,
and
JJ-Type
Cartridges
Free
Storage
Threshold
(GB)
for
JA-,
JB-,
and
JJ-Type
Cartridges
Scratch
Stacked
Volumes
VTS
Model
Cartridge
Type
Data
Compression
Feature
10
30
50
3494
B10
and
B20
VTS
or
TS7700
Virtualization
Engine
JA
included
3,000
GB
9,000
GB
15,000
GB
3494
B10
and
B20
VTS
orTS7700
Virtualization
Engine
JB
included
7,000
GB
21,000
GB
50,000
GB
3494
B10
and
B20
VTS
orTS7700
Virtualization
Engine
JJ
included
600
GB
1,800
GB
3,000
GB
When
only
ten
scratch
stacked
volumes
are
available,
the
VTS
or
TS7700
Virtualization
Engine
performance
may
be
affected
by
reclamation,
because
the
Inhibit
Reclaim
Schedule
is
ignored.
Reclamation
is
necessary
to
provide
stacked
volumes
for
copying
data
from
the
tape
volume
cache.
However,
when
more
than
50
scratch
stacked
volumes
are
available,
reclamation
is
non-invasive
and
occurs
only
when
allowed
by
the
Inhibit
Reclaim
Schedule.
A
balance
of
performance,
excessive
host
messages,
and
additional
cartridge
expense
may
be
achieved
by
using
a
Free
Storage
Threshold
(GB)
representative
of
30
stacked
volumes.
The
VTS/VE
Management
Policies
window
has
the
following
push
buttons:
Add
Adds
an
entry
to
the
Inhibit
Reclaim
Schedule.
Delete
Deletes
an
entry
from
the
Inhibit
Reclaim
Schedule.
Save
Closes
the
VTS
Management
Policies
window
and
saves
all
the
changes
made
to
the
Inhibit
Reclaim
Schedule,
the
Reclaim
Threshold
Percentage,
and
the
Free
Storage
Threshold
(GB).
Cancel
Closes
the
VTS
Management
Policies
window
without
saving
any
of
the
changes.
Help
Provides
help
about
the
VTS
Management
Policies
window.
Manage
Unassigned
Volumes
Note:
This
window
does
not
apply
to
the
TS7700
Virtualization
Engine.
The
Manage
Unassigned
Volumes
window
opens
automatically
under
the
following
conditions:
v
When
the
3494
Tape
Library
is
in
Import
mode
Chapter
6.
Advanced
Operating
Procedures
249
Содержание TotalStorage 3494 Tape Library
Страница 1: ...IBM TotalStorage 3494 Tape Library Operator Guide GA32 0449 14...
Страница 2: ......
Страница 3: ...IBM TotalStorage 3494 Tape Library Operator Guide GA32 0449 14...
Страница 14: ...xii 3494 Tape Library Operator Guide...
Страница 22: ...xx 3494 Tape Library Operator Guide...
Страница 72: ...46 3494 Tape Library Operator Guide...
Страница 84: ...58 3494 Tape Library Operator Guide...
Страница 124: ...98 3494 Tape Library Operator Guide...
Страница 136: ...110 3494 Tape Library Operator Guide...
Страница 150: ...124 3494 Tape Library Operator Guide...
Страница 352: ...Figure 206 Service Window 326 3494 Tape Library Operator Guide...
Страница 536: ...510 3494 Tape Library Operator Guide...
Страница 572: ...546 3494 Tape Library Operator Guide...
Страница 580: ...554 3494 Tape Library Operator Guide...
Страница 600: ...574 3494 Tape Library Operator Guide...
Страница 603: ......
Страница 604: ...Part Number 95P6750 EC H79941 GA32 0449 14 1P P N 95P6750...
Страница 605: ...Spine information IBM TotalStorage 3494 Tape Library 3494 Tape Library Operator Guide...