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Quickspecs – HP Ultrium 215 User Manual

Page 19

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Capacity

Native

100 GB

100 GB

200 GB

Compressed
(assumes 2:1 data
compression)

200 GB

200 GB

400 GB

Buffer Size

16 MB

64 MB

64 MB

Performance

Sustained transfer
rate, native

7.5 MB/s

16 MB/s

24 MB/s

Sustained transfer
rate, compressed
(assumes 2:1 data
compression)

15 MB/s

32 MB/s

48 MB/s

Burst transfer rate

80 MB/s (with Ultra2
SCSI wide)

160 MB/s (with Ultra3
SCSI wide)

160 MB/s (with Ultra3
SCSI wide)

Data rate matching
range

6-7.5 MB/s (native)

6.7-16 MB/s (native)

8-24 MB/s (native)

Data access time
(from BOT)

142s typical for a 100
GB tape (native)

64 s typical for a 100
GB tape (native)

64 s typical for a 200
GB tape (native)

Average load time

25 s

17 s

17 s

Average unload time13 s

16 s

16 s

Rewind time from
EOT

284 s (100 GB tape)

121s (100 GB tape)

121 s (200 GB tape)

Rewind tape speed 2.05 m/s

5.0 m/s

5.0 m/s

Reliability

MTBF

250,000 hours
at 100% duty cycle

250,000 hours
at 100% duty cycle

250,000 hours
at 100% duty cycle

Uncorrected Error
Rate

1x10

17

bits read

1x10

17

1x10

17

Media
Compatibility

LTO Ultrium1
with 4K Cartridge
Memory

LTO Ultrium 1
with 4K Cartridge
Memory

LTO Ultrium 1
with 4K Cartridge
Memory;
LTO Ultrium 2
with 4K Cartridge
Memory

Tape Format

Recording method

8-channel linear
serpentine

8-channel linear
serpentine

8-channel linear
serpentine

Recording format

LTO Ultrium 1

LTO Ultrium 1

LTO Ultrium 2
LTO Ultrium 1 (for 100
GB tape)

Data compression

LTO DC dual mode
compression (an
enhanced version of
ALDC)

LTO DC dual mode
compression (an
enhanced version of
ALDC)

LTO DC dual mode
compression (an
enhanced version of
ALDC)

Error
detection/correction

Reed-Solomon

Reed-Solomon

Reed-Solomon

Read channel
technology

Peak Detect

Partial Response
Maximum Likelihood
(PRML)

Partial Response
Maximum Likelihood
(PRML)

Data encoding
method

RLL 1,7

RLL 1,7

RLL 0,13/11

Interface

Interface type

Wide Ultra2 SCSI
(LVDS)

Wide Ultra3 SCSI
(LVDS)

Wide Ultra3 SCSI
(LVDS)

SCSI connector

Internal: 68-pin LVDS
External: 68-pin HD

Internal: 68-pin LVDS
External: 68-pin HD

Internal: 68-pin LVDS
External: 68-pin HD

QuickSpecs

HP StorageWorks Ultrium Half-Height Tape Drives

Technical Specifications

DA - 12128 Worldwide QuickSpecs — Version 7 — 3/17/2006

Page 19