Tandberg Data 600 manual Maximum Data Transfer Rate, Head Life and Mtbf

Product Specifications SDLT 600 Product Manual

3.1.7Maximum Data Transfer Rate

Table 3-7shows the maximum sustained (and burst) data transfer rates for the SDLT 600 tape drive.

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.

NOTE: Cable lengths and cable type may limit attainable transfer rate; for details,

refer to: SDLT 600 Design and Integration Guide (81-81196-01).

3.1.8Head 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.

NOTE: 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.

3-6 March 2004 81-81184-02 REV A01