Tandberg Data SDLT 600, Руководство по эксплуатации продукта

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Product Specifications SDLT 600 Product Manual
3-6 March 2004 81-81184-02 REV A01
3.1.7 Maximum Data Transfer Rate
Table 3-7 shows the maximum sustained (and burst) data transfer rates for the SDLT 600 tape drive.
N
OTE
: Cable lengths and cable type may limit attainable transfer rate; for details,
refer to: SDLT 600 Design and Integration Guide (81-81196-01).
3.1.8 Head Life and MTBF
The projected mean time between failures (MTBF) for the overall SDLT 600 tape drive system is
250,000 hours, not including the heads. Head life is a minimum of 30,000 tape motion hours and an
average of 50,000 media motion hours.
N
OTE
: The manufacturer does not warrant that predicted MTBF is representative
of any particular unit installed for customer use. Actual figures vary from
unit to unit.
Table 3-7. Maximum Data Transfer Rates
Configuration Native Compressed* Burst Max**
SCSI Ultra 160 (MSE LVD mode) 36 MB/sec 72 MB/sec 160 MB/sec
SCSI Ultra 160 (SE mode) 36 MB/sec 40 MB/sec 40 MB/sec
Fibre Channel (1 Gbps) 36 MB/sec 72 MB/sec 100 MB/sec
Fibre Channel (2 Gbps) 36 MB/sec 72 MB/sec 200 MB/sec
* The compression rates shown assume an industry standard 2:1 compression ratio. Actual compression ratios achieved
depend on the redundancy of data files being recorded. For non-compressible (expanding) data, this results in a reduction
in capacity and transfer rate for the data. Fully random data is the worst case for compressibility.
** The SCSI bus limits burst speeds, not the design of SDLT 600 tape drive or Super DLTtape II media.