Sony AIT-SDX460, Руководство по техническим характеристикам продукции

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2. Specification
SONY AIT-1 Turbo drive SDX-460V series Ver.1.0
2-7
2.3.1. Data Capacity
The SDX-460V includes a data compression capability. When data compression is enabled the drive capacity can
increase from 2 times to 3 times. The efficiency of the data compression depends on the actual data that is being
compressed and cannot be predicted precisely prior to compression.
Format AIT-E Turbo Standard Format
Native
Capacity
20.0 Gbyte typical When using 98 meter tape AIT-E Turbo cassette (TAITE-20N)
Format AIT-1 Standard Format
25.0 Gbyte typical When using 170 meter tape AIT-1 cassette (SDX1-25C)
Native
Capacity
35.0 Gbyte typical When using 230 meter tape AIT-1 cassette (SDX1-35C)
Format AIT-1 Turbo Standard Format
Native
Capacity
40.0 Gbyte typical
When using 186 meter tape AIT-1 Turbo cassette (TAIT1-40N and
TAIT1-40C)
2.3.2. Data transfer Rate
2.3.2.1. Sustained Data Transfer Rate to and from Tape
The sustained transfer rate to and from the tape is 6 Mbyte per second with AIT-E Turbo and AIT-1 Turbo cassette.
4 Mbyte per second with AIT-1 cassette. For this sustained rate to be achieved, the drive must be streaming. There
may be some dependency on the host and application softwares for this to be achieved.
2.3.2.2. Burst Transfer Rate to and from the IDE Bus
The SDX-460V will transmit and receive data bursts to and from the IDE bus at a maximum burst rate of 100 Mbyte
per second, using Ultra DMA (mode 5) transfer.
2.3.3. Initialize Time
Initialize Time means the period from the time the drive is powered on to the time when the drive is ready and waiting
for a ATA/ATAPI command such as INQUIRY or TEST UNIT READY. Initialize Time is less than 5 seconds.
The drive will respond with BUSY status until the completion of the Initialize Time. The Initialize Time does not
include the time necessary for drive diagnostics to complete and the drive to become ready for tape insertion.
2.3.4. Load Time
Load Time means the period from the time when the operator inserts a cassette into the drive to the time when the
drive is ready. The data in the below table represents the average time for SDX-460V. The time it may take for
retrying is not reflected here.
TAITE-20N (98m) SDX1-25C (170m) SDX1-35C (230m) TAIT1-40N (186m) TAIT1-40C (186m)
Load Time 25 sec 14 sec 14 sec 25 sec 14 sec