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QuickSpecs
Technical Specifications
Warranty
Liquid Crystal Display
(LCD)
Recommended Maximum
Server Size
Performance Specification Native
Maximum Formatted
Capacity (unattended)
Mechanical
Measurements
Tape Speed
Tape Format
© Copyright 2003 Hewlett-Packard Development Company, L.P.
The information contained herein is subject to change without notice.
Windows NT is a US registered trademark of Microsoft Corporation. Intel is a US registered trademark of Intel Corporation. Unix is a registered
trademark of The Open Group.
The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services.
Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions
contained herein.
Maximum
Minimum
The dot matrix front panel information display provides user-friendly information on the autoloader's operating status,
potential error conditions, current cassette and magazine status.
40 GB
2:1 Compression
NOTE: Typically, users will be able to compress their data at a 2 to 1 ratio; however, compression ratios will vary
based on the type of data being compressed.
Cartridge Swap Time
Load Time
Unload Time (depending on
tape type and position)
Search Speed
8-Cassette Magazine
Without compression
Based on typical 2:1
compression ratio
NOTE: Typically, users will be able to compress their data at a 2 to 1 ratio; however, compression ratios will vary
based on the type of data being compressed.
Tape Width
Tape Length
Dimensions (HxWxD)
Weight
Read/Write
Head to Tape Speed
Rewind/Fast Forward
Recording Method
Bytes/Group
Data Frame/Group
Density/Inch
Flux Reversal/Inch
Track Density/Inch
Data Encoding Method
Data Transfer Rate
Error Detection/
Correction
Reliability Cartridge Swaps > 100,000
MTBF
DA - 10518 Worldwide — Version 16 — October 22, 2003
HP StorageWorks 20/40-GB DAT DDS-4 8 Cassette
The remaining warranty of the server product in or onto which it is installed to a
maximum three-year limited warranty.
Consult the Customer Support Center for details.)
Three year parts, one year next-business day exchange
Maximum
Typical
Maximum
Typical
50 seconds/average
58 seconds/average
32 seconds to 160 seconds
45 seconds average file access for any part of a 150 meter tape
160 GB
320 GB
0.15 in (0.38 cm)
492 ft (150 m)
3.25 x 5.75 x 9.51 in (8.26 x 14.61 x 24.16 cm)
5.258 lb (2.4 kg)
0.46 ips/11.6 mm/s
262 ips/6,670 mm/s
130 x Read/Write Speed
Helical Scan
38,4296
22
122,000
1,524,000
2,793
PRML
2.3 MB/s
Reed-Solomon-3 levels
250,000 hours at 30% duty cycle
(Certain restrictions and exclusions apply.
8.4 GB/hour
6.0 GB/hour
16.8 GB/hour
15 GB/hour
Autoloader
Page 5
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