Exabyte EXB-8505 8mm manual Reselection Phase Timeout, Data transfer rates, Type

6Functional Specifications

	Data Transfer Rate
		The maximum obtainable data transfer rates for the tape drive
		depend on what mode it is operating in. Table 6-6shows the data
		transfer rates for each of the four formats.
Table 6-6Data transfer rates
Type of			Rate achieved for these formats . . .
transfer
		8500ca	8500a	8200c	8200
Sustained		up to 1	up to 500	up to 500	up to 262.5
transfer rate		MBytes/secb	KBytes/sec	KBytes/secb	KBytes/sec
Synchronous			up to 5.0 MBytes/sec
burst
Asynchronous			up to 2.5 MBytes/sec
burst

aEXB-8505 and EXB-8505XL only

bAssumes a 2:1 compression ratio

Notes:

When compression is enabled, the tape drive can increase the sustained transfer rate of up to five times. Compression throughput and capacity ratios depend on the type of data.

The maximum burst data transfer rate is limited by the performance of the SCSI host bus adapter, the SCSI bus interface controller, and the tape drive’s buffer control hardware.

Reselection Phase Timeout

If the initiator fails to respond to a device reselection sequence, the tape drive times out after 250 msec. The tape drive continues to repeat the reselection process until it is reset or the initiator finally responds.

6-6	EXB-8205 and EXB-8505	510504
	(Standard and XL)