Generally, you want to use *stcbn if it is available. The reason is the drive will stay at the point between closes and reports the location block on open. Remember these are smart drives like Magstar and can skip to a block as requested. Typically, a backup product does that. However, I will defer to rest if they have a better answer.
-----Original Message----- From: bbullock [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 06, 2002 4:16 PM To: [EMAIL PROTECTED] Subject: IBM 3583 Library question. We are hooking a new IBM 3583 tape library up to a Solaris host to be a remote site TSM server. The Ultrium drives have various /dev/?st... devices through which we can access them. The no-brainer was to use the driver that tells the drive to compress the data, but I'm not sure between these 2 options: /dev/rmt/*stc <- compression and "Rewind on Close" /dev/rmt/*stcn <- compression but "No Rewind on Close" I can't find anything in the TSM or library documents on which to use. Does TSM get confused if a tape were to be mounted and it was not at the beginning? Kind of seems like we would reduce tape and drive wear by using the "no rewind" device drives, and writes might happen quicker it the tape is not rewound... Any suggestions would be helpful. (the listserv archive site is currently inaccessible.) Thanks, Ben Micron Technology Inc.
