QuickSpecs
HP StorageWorks Ultrium Half-Height Tape Drives
Technical Specifications
Capacity | Native | 100 GB | 100 GB | 200 GB |
| Compressed | 200 GB | 200 GB | 400 GB |
| (assumes 2:1 data |
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| compression) |
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| Buffer Size | 16 MB | 64 MB | 64 MB |
Performance | Sustained transfer | 7.5 MB/s | 16 MB/s | 24 MB/s |
| rate, native |
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| Sustained transfer | 15 MB/s | 32 MB/s | 48 MB/s |
| rate, compressed |
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| (assumes 2:1 data |
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| compression) |
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| Burst transfer rate | 80 MB/s (with Ultra2 | 160 MB/s (with Ultra3 | 160 MB/s (with Ultra3 |
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| SCSI wide) | SCSI wide) | SCSI wide) |
| Data rate matching | |||
| range |
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| Data access time | 142s typical for a 100 | 64 s typical for a 100 | 64 s typical for a 200 |
| (from BOT) | GB tape (native) | GB tape (native) | GB tape (native) |
| Average load time | 25 s | 17 s | 17 s |
| Average unload time13 s | 16 s | 16 s | |
| Rewind time from | 284 s (100 GB tape) | 121s (100 GB tape) | 121 s (200 GB tape) |
| EOT |
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| Rewind tape speed | 2.05 m/s | 5.0 m/s | 5.0 m/s |
Reliability | MTBF | 250,000 hours | 250,000 hours | 250,000 hours |
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| at 100% duty cycle | at 100% duty cycle | at 100% duty cycle |
| Uncorrected Error | 1x1017 bits read | 1x1017 | 1x1017 |
| Rate |
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Media |
| LTO Ultrium1 | LTO Ultrium 1 | LTO Ultrium 1 |
Compatibility |
| with 4K Cartridge | with 4K Cartridge | with 4K Cartridge |
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| Memory | Memory | Memory; |
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| LTO Ultrium 2 |
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| with 4K Cartridge |
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| Memory |
Tape Format | Recording method | |||
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| serpentine | serpentine | serpentine |
| Recording format | LTO Ultrium 1 | LTO Ultrium 1 | LTO Ultrium 2 |
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| LTO Ultrium 1 (for 100 |
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| GB tape) |
| Data compression | LTO DC dual mode | LTO DC dual mode | LTO DC dual mode |
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| compression (an | compression (an | compression (an |
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| enhanced version of | enhanced version of | enhanced version of |
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| ALDC) | ALDC) | ALDC) |
| Error | |||
| detection/correction |
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| Read channel | Peak Detect | Partial Response | Partial Response |
| technology |
| Maximum Likelihood | Maximum Likelihood |
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| (PRML) | (PRML) |
| Data encoding | RLL 1,7 | RLL 1,7 | RLL 0,13/11 |
| method |
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Interface | Interface type | Wide Ultra2 SCSI | Wide Ultra3 SCSI | Wide Ultra3 SCSI |
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| (LVDS) | (LVDS) | (LVDS) |
| SCSI connector | Internal: | Internal: | Internal: |
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| External: | External: | External: |
DA - 12128 Worldwide QuickSpecs — Version 7 — 3/17/2006 | Page 19 |