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The new DIS 914 automated cartridge library system
utilizes uncompressed 300 GB DIS media cartridges to
provide industry leading storage capacity,
performance, and scalability designed with the
reliability and flexibility needed to meet the growing
requirements for fast-access mass storage.
The performance of the DIS 914 quad density library is unrivaled
by any other library system on the market. The fast robotics mount
operation of 10 seconds, combined with a search rate of
2700MB/second, provides a total average access time for any file
within the library of less than 60 seconds. The data transfer rate is
up to 20MB/second per drive, with one or two high-performance
DIS drives per system. Each drive has its own 8-bit Parallel (DCRsi
Compatible), Hot-Link Serial and Ultra-SCSI data ports, producing
an aggregate transfer rate of up to 320Mbits/sec (40MB/sec) for
the library. The cartridge design eliminates the need for a gripping
mechanism, allowing the robotics to achieve unmatched
performance and reliability.
A stand-alone DIS 914 library can hold 87 300 GB DIS tape
cartridges, putting a total storage capacity of up to 26.1 terabytes
per library online in less than 8 square feet of floor space. By using
the cartridge partitioning feature in the DD-2 tape format, the
library storage capacity can appear as over 93,600 200 MB logical
volumes to the host server.
The system's scalability provides over 100 TB utilizing a single
transfer rail with four DIS 914 cabinets. By stringing together
multiple clusters almost unlimited capacity can be achieved.
Additional drives can be added to dramatically increase I/O
capability.
Ampex works with leading software companies to provide backup
and recovery, archiving and HSM applications for the DIS 914
library.
up to 26.1 terabyte capacity in
only 8 square feet of floor space
One or two DIS drives, each with
independent 8-bit (DCRsi
compatible) parallel, Hot-Link
Serial, and Ultra-SCSI ports
Aggregate sustained data rate up
to 40MB/second
Robotic performance of 270
cartridge exchanges per hour
50 seconds average access time to
any file
Fully automated archive, backup
and recovery
Read compatible with ER90 "D2M"
cartridges and with single and
double density DST/DIS cartridges
Library Extension Units
Short transfer rail expands system
up to 77.4 TB
Long transfer rail expands system
up to 104.4 TB
Multiple cluster configurations
create almost unlimited storage
capacity
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Performance / Capacity
Short transfer rail
Long transfer rail allows
Transfer rate Up to 40MB/second sustained (two drives at 20MB/sec), 80MB/sec burst
Drive search speed 2700MB/second
Cartridge exchanges 270 per hour (one dismount and one mount)
Average access time 60 seconds
Storage capacity 1 Available Cabinet Type Standalone System Interconnected System
No Drives ------------- 27.0 TB 90 Cartridges
One Drive 26.1 TB 87 Cartridges 23.4 TB 78 Cartridges
Two Drives 17.1 TB 57 Cartridges 14.4 TB 48 Cartridges
Storage density 3.26TB/sq. ft. (26.1TB/8 sq. ft.)
Interface One Ultra-SCSI (16 bit fast differential)
Telecommunications / instrumentation port
includes 8-bit parallel data port and serial, ANSI X3T9.3 compilant port
Tape Format DD-2 19-mm quad density helical scan
Error Rate 1 in 1017 bits read
Physical Characteristics
Number of drives One or two high-performance DIS drives
I/O bins Two user import/export bins
Size 80"H x 29"W x 39.3"D (198.12 cm x 73.66 cm x 99.82 cm)
Weight 2 Single cabinet w/1 drive: 759 lbs. (344 kg)
Floor loading 125 lbs./sq. ft. (maximum including cassettes)
Operating Environment
Temperature range 12–27° C
Humidity range 30–70%, non-condensing
allows the addition of
up to two extension
cabinets and additional
drives can be added to
increase I/O capability
Power Requirements 100-250 VAC, 50/60 Hz, Single Phase
Power Consumption (Peak Current with two drives and Transfer Unit)
100-120 VAC, 12A (4100 BTU/Hr Max)
Device Drivers Support for all major UNIX and
200-250 VAC, 6A (4100 BTU/Hr Max)
Windows NT operating systems
the addition of up to
three extension cabinets.
Multiple clusters of
libraries and extensions
can be configured for
almost unlimited capacity.
DIS 914 DIS 914
Library Library Extension Unit
1All capacities without data compression
2 All weights without cartridges.
Add an additional 25 oz. (1.56 lbs.) per installed medium size cartridge.
Specifications subject to change without notice or obligation
All trademarks and service marks are the property of their respective holders
©1996-2001 Ampex Corporation
Ampex Data Systems is a subsidiary of Ampex Corporation
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