ado@elsie.UUCP (Arthur David Olson) (03/06/87)
> I have a Vax 11/780 running 4.3BSD with an Emulex TC13 controller > (emulating a ts-11) connected to a Fuji-2444AC tape drive. > > Everything works fine except. . .Emulex swears that if the driver sets the > right bit. . .(It's always a driver problem to them.) > > Has anyone tried to do a software density select with an Emulex TC13? Me, I have a VAX 11/750 running MORE/bsd 4.3 with an Emulex TC7000 controller (emulating a tm03/tu77) connected to a Cipher M990 tape drive. Everything works fine except when a bad tapes causes a "write retries exceeded" error on the Cipher drive. It seems as if in such cases there's no interrupt getting back to the VAX to tell it there's a problem and that the write should be aborted. Even after we clear the error on the drive itself (by unloading and reloading the tape) we don't get an interrupt--and since the 4.3BSD driver is very patient about waiting for one (read: it will wait forever), the only way to make the drive useable again is to reboot. And I'm so low on Emulex's list that they don't even swear at me-- my calls to the technical types have simply gone unreturned all week. Has anyone solved the write retries problem with the TC7000/M990 combination? P.S.: Software density select works just fine with the TC7000. :-) -- UNIX is a registered trademark of AT&T Bell Laboratories. -- UUCP: ..decvax!seismo!elsie!ado ARPA: elsie!ado@seismo.ARPA DEC, VAX, Elsie & Ado are Digital, Borden & Ampex trademarks.