Specifications - NEC N8151-53 User Manual

Specifications

The Built-In AIT has the following specification:
Performance
Memory capacity
Bit error rate
Data transfer rate
Initialize time
Load time
Unload time
Rewind time
104 Specification
• 50 GB (in compression mode: 100 GB)
when using AIT2 Data Cartridge: tape length 230 m
• 36 GB (in compression mode: 72 GB)
when using AIT2 Data Cartridge: tape length 170 m
• 35 GB (in compression mode: 70 GB)
when using AIT1 Data Cartridge: tape length 230 m
• 25 GB (in compression mode: 50 GB)
when using AIT1 Data Cartridge: tape length 170 m
The compression mode value presumes the compression
ratio is 2:1. The actual value depends on patterns in the
data.The memory capacity requirement is conservative, and
may be somewhat smaller depending on memory usage
conditions.
10 -17 or less
Internal transfer rate: 6 Mbytes/second (AIT-2)
Internal transfer rate: 4 Mbytes/second (AIT-1)
The internal transfer rate depends on the system environ-
ment of the host machine.
IDE transfer rate
Ultra DMA mode 5:
Ultra DMA mode 4:
PIO transfer mode 4: 16.6 Mbytes/second
PIO transfer mode 0: 3.33 Mbytes/second
Note: The mode used depends on the connected host. Also,
the internal transfer rate may change depending on
the selected mode.
Less than 5 seconds
Average 14 seconds
Average 20 seconds
Average 105 seconds
If the Built-In AIT is set to perform retries, the times above
may be longer.
100 Mbytes/second
66.6 Mbytes/second