Date: Mon, 25 Sep 2000 18:27:17 -0500 From: "Shawn Barnhart" <swb@grasslake.net> To: "Dan Nelson" <dnelson@emsphone.com> Cc: <freebsd-questions@FreeBSD.ORG> Subject: Re: Media changer relative movement? Message-ID: <003001c02748$250dbdc0$b8209fc0@marlowe> References: <001f01c02735$406f9ba0$b8209fc0@marlowe> <20000925171823.A29921@dan.emsphone.com>
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----- Original Message ----- From: "Dan Nelson" <dnelson@emsphone.com> > In the last episode (Sep 25), Shawn Barnhart said: > > Does chio(1) offer any relative movement options when working with a > > media changer? > > Nope. As I suspected. > I had the same problem, and compiled "mtx" off of Sourceforge. It's > got its own share of problems, but does have automatic > "load/unload/next" commands, which really helps in scripts > ... and I realize I should read more than one paragraph at a time :) > Just compile MTX for FreeBSD. Heh. I didn't realize it was available for FreeBSD, but then again the last version I saw I downloaded from Leonard Zubkoff's web page and was meant specifically for Linux. Cool. Cooler yet in ports.. > The functionality exists in /dev/ch, but only partially. "chio status > -S" will show what slot a particular tape came from, but only if the > underlying hardware supports it. Ideally, /dev/ch should store > "current slot" information for autoloaders that don't support it, and > it should also provide CHIOLOAD, CHIOUNLOAD, and CHIONEXT ioctls. > Patches welcome, if you're desperate enough to code it yourself :) I'd code it myself if I could, but I lack the skills to do so. I was thinking of a perl script that could do this by capturing the output of "chio status" and Doing The Right Thing, but that'd only work if there was just one empty slot. A magazine with only two tapes, one of them loaded, would make returning the tape to the "right" slot and getting the "next" tape a little tricky. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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