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IBM TotalStorage Virtual Tape Server
The IBM TotalStorage Virtual Tape Server ™(VTS) is an enterprise tape
solution designed to enhance performance and provide the capacity required for
today ’s backup requirements. The adoption of this solution can help reduce
batch processing time, total cost of ownership and management cost. A fully
redundant VTS peer-to-peer configuration, optionally installed within two sites,
may also fulfill the highest business continuity requirements and offers up to
zero data loss in case of failures or even disasters.
Since its first introduction in 1997 IBM has continually enhanced its VTS
offerings in performance, capacity and functionality while offering full
investment protection of the associated IBM TotalStorage ™Enterprise Tape
Systems 3590, Enterprise Tape Library 3494 and high capacity cartridges
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An Entry Model (B10) and High Performance Model (B20)
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Utilizes copper chip technology
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Increased performance and capacity
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Improved reliability, availability, and serviceability
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Improved server attachment capability
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Geographically Dispersed Parallel Sysplex Peer to Peer VTS
integration |
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| Highlights
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Reduced "real" tape mounts, as most mount
requests are satisfied from the Tape Volume Cache (TVC) |
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Reduced number of physical tape cartridges
required due to higher utilization of cartridge capacity |
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Reduced floor space required to support the
tape process, as a result of fewer physical resources |
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Improved performance due to the elimination
of most of the physical movement of tape |
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Reduced operating costs such as power,
maintenance, operations, and support staff |
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Overview |
The IBM TotalStorage™ Virtual Tape Server Model B10 (B10 VTS)
is an enterprise tape solution designed to enhance performance and provide
the capacity required for today's backup requirements. Adoption of this
solution can help reduce batch processing time, total cost of ownership, and
storage management overhead. Automation of a larger portion of a company's
data storage may also be facilitated in a shorter period of time.
The B10 VTS has been designed to reduce or eliminate the number of
bottlenecks that may be present in a given tape environment, depending on
the characteristics of installed equipment and processor workloads. For
example, if more drives are needed, up to 64 virtual drives may be
configured to meet this need. If cartridge capacity is not fully utilized,
the B10 VTS can alleviate this problem by filling the physical cartridge.
The B10 VTS initially creates a virtual volume in a buffer known as the Tape
Volume Cache (TVC), a RAID5 disk array. If these virtual volumes are
re-referenced, they are accessed in most instances from the TVC, helping to
eliminate many of the physical delays associated with tape I/O and improving
the performance of the tape process.
The virtual volume is also written to an attached IBM Magstar® 3590 Tape
Drive as a logical volume, in either a first-in/first-out order, or, if the
optional Advanced Function feature is present, under the control of DFSMS.
Virtual volumes may, however, depending on the usable capacity of the TVC
and their re-reference pattern, remain in cache for extended periods, which
may provide faster access to critical volumes.
Virtual drives can be dedicated to a specific processor or shared in
supported environments. This flexibility maximizes the efficiency of data
transfer operations by ensuring that sufficient drives are available for a
specific task.
IBM TotalStorage Enterprise Tape Library Specialist is available to monitor
the B10 VTS. A Call-Home function is also provided to enable the B10 VTS to
perform proactive maintenance. |
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Server Attachment |
| For ESCON®-attached servers, the B10 VTS can be supported at
a distance of up to 26 km using ESCON Directors, or up to 75 km using IBM
2029 Fiber Savers. In addition, the B10 VTS can be supported at up to 10 km
on a Storage Area Network (SAN) using the IBM 2109 SAN Fibre Channel switch
and the IBM 2108 SAN Data Gateway. |
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Optional Features |
| Advanced Function: |
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TVC DFSMS Management improves "cache hits" and
average mount response time. DFSMS policy management assigns virtual volumes
to preference groups to control which volumes are deleted from cache after
they have been copied to tape. |
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Import/Export enables volumes to be moved from the
B10 VTS for disaster recovery, workload balancing or volume archiving
purposes. Exported stacked volumes may be imported on another B10, B18, or
B20 VTS. |
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Peer-to-Peer Copy:
Two B10 VTSs can be coupled to participate in an IBM TotalStorage
Peer-to-Peer Virtual Tape Server (PtP VTS) environment for installations
that require continuous access to data or improved disaster recovery
operations.
The PtP VTS design reduces or eliminates single points of failure and
improves data availability to address data access requirements during both
planned and unplanned outages. PtP architecture allows physical separation
of components in two sites to facilitate a more resilient disaster recovery
operation. |
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The IBM TotalStorage Virtual Tape
Server Model B10 at a glance |
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Minimum
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Maximum
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| Tape Volume Cache (GB) |
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648*
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1,296*
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| Virtual Drives |
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64
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64
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| Physical Tape Drives |
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4
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6
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| Virtual Volumes |
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250,000
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250,000
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| ESCON-only Channels |
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2
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4
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| SCSI-only Busses |
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8
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8
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| ESCON / SCSI Channels |
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2 / 2
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4 / 4
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*at a data compression factor of 3:1
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| Supported Environments |
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z/OS V1 or later |
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OS/390® V2 or later
- DFSMS/MVS® V1.2+ or later |
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z/VM V 3 or later
- VSE/ESA V 2.2 plus PTFs+ is |
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supported as a z/VM guest
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TPF V 4.1 plus PTFs or later |
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VM/ESA® V2.2 or later |
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- VSE/ESA V 2.2 plus PTFs+ is
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supported as a VM/ESA guest |
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AIX® V4.32+ or later |
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Sun Solaris® V2.6+ or later |
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Windows NT® / Windows® 2000 |
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HP-UX R11 |
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Overview |
The IBM TotalStorage™ Virtual Tape Server Model B20 (B20 VTS)
is an enterprise tape solution designed to enhance performance and provide
the capacity required for today's backup requirements. Adoption of this
solution can help reduce batch processing time, total cost of ownership, and
management overhead. Automation of a larger portion of a company's data
storage may also be facilitated in a shorter period of time.
The B20 VTS has been designed to reduce or eliminate the number of
bottlenecks that may be present in a given tape environment, depending on
the characteristics of installed equipment and processor workloads. For
example, if more drives are needed, up to 256 virtual drives may be
configured to meet this need. If cartridge capacity is not fully utilized,
the B20 VTS can alleviate this problem by filling the physical cartridge.
The B20 VTS initially creates a virtual volume in a buffer known as the Tape
Volume Cache (TVC), a RAID5 disk array. If these virtual volumes are
re-referenced, they are accessed in most instances from the TVC, helping to
eliminate many of the physical delays associated with tape I/O and improving
the performance of the tape process.
The virtual volume is also written to an attached IBM Magstar® 3590 Tape
Drive as a logical volume, in either a first-in/first-out order, or, if the
optional Advanced Function feature is present, under the control of DFSMS.
Virtual volumes may, however, depending on the usable capacity of the TVC
and their re-reference pattern, remain in cache for extended periods, which
may provide faster access to critical volumes.
Virtual drives can be dedicated to a specific processor or shared in
supported environments. This flexibility maximizes the efficiency of data
transfer operations by ensuring that sufficient drives are available for a
specific task.
IBM TotalStorage Enterprise Tape Library Specialist is available to monitor
the B20 VTS. A Call-Home function is also provided to enable the B20 VTS to
perform proactive maintenance. |
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Server Attachment |
| For ESCON®-attached servers, the B20 VTS can be
supported at a distance of up to 26 km using suitably configured ESCON
Directors, or up to 75 km using suitably configured IBM 2029 Fiber Savers.
In addition, the B20 VTS can be supported at up to 10 km on a Storage Area
Network (SAN) using the IBM 2109 SAN Fibre Channel switch and the IBM 2108
SAN Data Gateway. |
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Optional Features |
| Advanced Function: |
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• |
TVC DFSMS Management improves "cache
hits" and average mount response time. DFSMS policy management assigns
virtual volumes to preference groups to control which volumes are deleted
from cache after they have been copied to tape. |
|
• |
Import/Export enables volumes to be
moved from the B20 VTS for disaster recovery, workload balancing or volume
archiving purposes. Exported stacked volumes may be imported on another B10,
B18, or B20 VTS. |
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Peer-to-Peer Copy:
Two B20 VTSs can be coupled to participate in an IBM TotalStorage
Peer-to-Peer Virtual Tape Server (PtP VTS) environment, which is useful for
installations that need continuous access to data or seek to improve
disaster recovery operations. The PtP VTS design reduces or eliminates
single points of failure and improves data availability to address data
access requirements during both planned and unplanned outages. PtP
architecture allows physical separation of components in two sites to
facilitate a more resilient disaster recovery operation. |
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The IBM TotalStorage
Virtual Tape Server Model B20 at a glance |
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Minimum
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Maximum
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| Tape Volume Cache (GB) |
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2592*
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5,184*
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| Virtual Drives |
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128
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256
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| Physical Tape Drives |
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6
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12
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| Virtual Volumes |
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250,000
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250,000
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| ESCON-only Channels |
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8
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16
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| ESCON / SCSI Busses |
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8 / 8
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8 / 8
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| *at a data compression factor of 3:1
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| Supported Environments |
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z/OS V1 or later |
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OS/390® V2 or later
- DFSMS/MVS® V1.2+ or later |
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z/VM V 3 or later
- VSE/ESA V 2.2 plus PTFs+ is |
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supported as a z/VM guest
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TPF V 4.1 plus PTFs or later |
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Do you see the tape library that you are looking for?
If so please contact us at 800-663-5523 or click
here.
If you can't seem to find your library, please
click here?
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VM/ESA® V2.2 or later |
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- VSE/ESA V 2.2 plus PTFs+ is
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supported as a VM/ESA guest
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AIX® V4.32+ or later |
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Sun Solaris® V2.6+ or later |
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Windows NT® / Windows® 2000 |
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HP-UX R11 |
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Improve your enterprise tape process
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| Highlights |
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Fewer single points of failure |
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Increased data availability in 24x7 environments
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Improved addressing of both scheduled and
unscheduled outages |
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Increased flexibility for disaster recovery
operations |
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More selectable I/O workload options |
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Enabled remote data vaulting between two
geographically separate sites to enhance disaster tolerance |
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Overview |
The IBM TotalStorage™ Peer-to-Peer Virtual Tape Server (PtP
VTS) is an evolutionary step for the IBM TotalStorage Virtual Tape Server
Models B10, B20, and B18 (VTS).
The PtP VTS enhances the functionality and serves as an upgrade to these
models by delivering greater benefits for tape processing and operations.
The PtP VTS is specifically designed to improve data availability by
providing dual-volume copy, remote functionality, automatic recovery, and
switch-over capabilities.
This new configuration consists of two similar VTSs connected at the same or
a geographically separate location through ESCON®-attached IBM TotalStorage
Virtual Tape Controller Model AX0s.
The PtP VTS can be a valuable addition to a Geographically Dispersed
Parallel Sysplex (GDPS) environment, in which production is typically split
across sites to minimize downtime in the event of an outage. The PtP VTS
complements this environment by providing a function similar to the IBM
Peer-to-Peer Remote Copy disk operation.
Because components can reside in a remote location, operations can typically
continue even if oneof the facilities is rendered non-operational during
planned maintenance, service, or system upgrades. This design can help
eliminate the need to physically transport cartridges for disaster backup.
During normal operation, the PtP VTS can automatically copy all virtual
volumes, resulting in identical volume images in each attached VTS. The AX0s
support creation of the dual copies and facilitate the maintenance of
complete system synchronization. This function is transparent to the host
processor, and the PtP VTS does not require host processor resources.
In Immediate Mode, secondary copies are created at rewind unload, prior to
EOV processing. This mode provides the highest level of data protection
available from the PtP VTS.
In Deferred Mode, normal EOV processing takes place, and secondary copies
are scheduled at rewind unload, as activity permits. This mode provides
higher performance with data protection superior to most current
implementations. |
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Server Attachment |
| For ESCON-attached servers, the PtP VTS can be supported at
a distance of up to 26 km using suitably configured ESCON Directors, or up
to 50 km using suitably configured IBM 2029 Fiber Savers. |
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| Product Highlights |
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Offers two modes of operation, immediate and deferred copy,
to provide high-level data protection |
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Creates dual-volume copy automatically, to facilitate
maintenance of system synchronization |
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Provides full-operational support for a GDPS environment |
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Optional Feature |
| The Advanced Function Feature allows the TVC DFSMS
Management to improve "cache hits" and average mount response time. This
provides additional opportunity to address specific data processing
objectives. In the PtP VTS environment, the VTS Import/Export function is
not currently supported. |
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Optional Software |
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IBM TotalStorage Peer to Peer Virtual
Tape Server at a glance |
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B18/B18
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B18/B10
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B10/B10
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B18/B20
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B20/B20
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| Virtual Tape Controllers |
4/8
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4
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4
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8
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8
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| Effective Tape Volume Cache*(GB) |
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| using 1 x feature 3704 |
1,296
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1,296
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1,296
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| using 1 x feature 3705 |
2,592
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2,592
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2,592
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| using 2 x feature 3705 |
5,184
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5,184
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5,184
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| using 4 x feature 3705 |
10,368
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10,368
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10,368
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| Virtual Drives |
64 / 128
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64
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64
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128
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128 / 256
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| Physical Tape Drives |
8/24 |
8/18 |
8/12 |
12/24 |
12/24 |
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| Virtual Volumes |
250,000 |
250,000 |
250,000 |
250,000 |
250,000 |
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| ESCON Channels |
8/16
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8
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8
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16
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16
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*at a data compression factor of 3:1
Supported Environments
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The PtP VTS operates in the z/OS, OS/390® z/VM and VM/ESA®
environments. |
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At least one of the z/OS or OS/390 hosts or partitions
must have DFSMS/MVS ® 1.4 or higher and provide essential host
communication for operational status. |
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Native z/VM and VM/ESA hosts and VSE/ESA™ guests are
supported in environments where a z/OS and OS/390 host with full
Peer-to-Peer support is also attached to the library. |
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Do you see the tape library that you are looking for?
If so please contact us at 800-663-5523 or click
here.
If you can't seem to find your library, please
click here?
|
