Date: Sun, 24 Mar 1996 20:28:31 -0800 (PST) From: "JULIAN Elischer" <julian@ref.tfs.com> To: gwh@spiders.com (Gene W Homicki) Cc: freebsd-hardware@freebsd.org, freebsd-scsi@freebsd.org Subject: Re: HP C1553A autochanger. Message-ID: <199603250428.UAA01179@ref.tfs.com> In-Reply-To: <199603241905.OAA18062@charlotte.spiders.com> from "Gene W Homicki" at Mar 24, 96 02:05:50 pm
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probably the 'changer device' is on a second LUN you will need to add an entry to scsiconf.c for the device (in the registration table, and add the flag SCSI_MORE_LUNS (or however it's spelled) to tell the scsi system to look for another LUN on the device.. then you will also need to configure in the 'ch' device which is the changer device. (see the LINT config file). (I see you've done that) The ioctls to control the changer wre defined in <sys/chio.h>. there are no programs that presently do this so the driver hasn't been TESTED for a few generations, though it compiles fine.. it was last seen running correctly under OSF1 when the scsi system was shared between the two OS's but it has changed under FreeBSD a LOT (understatement) You may need to do debugging to get it going... sorry but i don't have such a changer to rest it on... > > > Hey all, > > I have an HP C1553A DDS-2 6 Tape autolaoder/changer. In the > docs for the drive, it specifies that that it can ork in changer mode, > which "SCSI Medium Changer" commands can be sent. > > When the machine boots up, its recognized as a SCSI tape drive, but > not as a changer device (I have the ch driver compiled into the kernel > and I'm running 2.1R). > > The drive works just fine in "stacker" mode, but I'd be much much > happier if I could randomly access cartridges. If anyone has > experience with these drives and/or can give me a pointer to docs to > get it working, I'd appreciate it. > > > --Gene > > -- > Gene W. Homicki gwh@spiders.com > Objective Consulting, Inc. http://www.spiders.com/ > Internet Presence Design voice: +1 914.353.3511 >
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