chip@ateng.ateng.com (Chip Salzenberg) (01/18/89)
I've got a Tecmar external tape drive working with Xenix/386 2.3.1. Sorta. I can't keep it streaming! I've tried afio with large block sizes and large -c values, and it's no help. What can I do? -- Chip Salzenberg <chip@ateng.com> or <uunet!ateng!chip> A T Engineering Me? Speak for my company? Surely you jest! "It's no good. They're tapping the lines."
jbayer@ispi.UUCP (Jonathan Bayer) (01/18/89)
In article <1989Jan17.151821.26311@ateng.ateng.com> chip@ateng.ateng.com (Chip Salzenberg) writes: >I've got a Tecmar external tape drive working with Xenix/386 2.3.1. > >I can't keep it streaming! I've tried afio with large block sizes and >large -c values, and it's no help. What can I do? This seems to be a limitation of the OS. We are using an Everex external tape drive with the same problem. It seems that the tape driver has an internal buffer which it uses. It fills up the buffer and then writes it to the tape. While filling up the buffer it is not writing. BTW, while reading it does stream. Try making a very large tar tape, and then scan the tape with "tar -tvf /dev/rct0" (or whatever your tape device is). It will read the tape continously. JB -- Jonathan Bayer Beware: The light at the end of the Intelligent Software Products, Inc. tunnel may be an oncoming dragon 19 Virginia Ave. ...uunet!ispi!jbayer Rockville Centre, NY 11570 (516) 766-2867 jbayer@ispi