Exabyte EXB-8505 8mm - Manual (Page 96)

8200 Format
If the tape is written in 8200 format, the tape drive can perform
forward file-search operations at 10 times the nominal tape speed and
backward file-search operations at 7.5 times the nominal tape speed.
Rewind Tape Speed
Table 6-4 lists maximum rewind times for the tape drives for four
sizes of EXATAPE 8mm data cartridges. Rewind time starts when the
initiator issues a REWIND (01h) command and ends when the tape
drive returns a Command Complete message (for a non-immediate
rewind). All times listed in the table assume the following:
The tape is positioned at LEOT when you issue a REWIND
command.
The drum has not stopped rotating.
Tape tension has not been released.
Size of
EXATAPE
a
Length
m (ft)
Typical rewind time
(seconds)
15m 15 (49) 50
54m 54 (177) 100
112m 112 (367) 170
160m XL
b
160 (524) 240
a
EXATAPE data cartridges are recommended for use with all Exabyte products and
are available for purchase from Exabyte Corporation.
b
160m XL media is intended for use in the EXB-8205XL and EXB-8505XL only.
Reposition Time
Reposition time starts when the initiator issues a command that stops
the tape drive’s motion control system and ends when the tape is
repositioned, at nominal speed, so that the next byte of data can be
transferred. Reposition time is independent of any interface delays.
Reposition time for the tape drive ranges from 1.2 sec to 1.5 sec.
Table 6-4 Typical rewind times
6-4 EXB-8205 and EXB-8505 510504
(Standard and XL)
6 Functional Specifications