On Friday 16 December 2005 03:19, Peter Mueller wrote: >Hi! > >Paul Bijnens wrote: >> ... >> The tapes with servo-tracks ARE able to detect EOT: that >> information is found in their servo-tracks. (I'm not sure how/if a >> damaged servo track can result in premature End Of Tape.) >> >> The helical scan type drives detect End Of Tape as a hard write >> error on the same spot. They cannot distinguish the real end of >> tape from a hard write error. Some of the drives seem to guess the >> end of tape by measuring the spindle speed of one or both the >> reels, but can only approximately indicate "near" end of tape. > >Where are the old days, when ANSI tapes had these metal patches to > indicate BOT and EOT .... ;-) > Dunno, but FYI, the DDS tapes have about 1/16" diameter holes for optical detection of BOT & EOT, about a foot back from the leader splice on either end.
I saw that when it failed and ripped the tape in two on one drive back in jurrasic times. > >Bye, Peter >WOTLmade -- Cheers, Gene People having trouble with vz bouncing email to me should use this address: <[EMAIL PROTECTED]> which bypasses vz's stupid bounce rules. I do use spamassassin too. :-) Yahoo.com and AOL/TW attorneys please note, additions to the above message by Gene Heskett are: Copyright 2005 by Maurice Eugene Heskett, all rights reserved.