Re: onarchive with no-rewind-tapes

Juan R. Guzman (jguzman@transre.com) wrote: : wally wrote: : > : > Has there anyone experience with onarchive using a no-rewind-tape-device : > as backup medium? : > I' ve configured a No-Rewind-Tape in the .arc file. : > Labeling this device with "define/volume" enforced a rewind and destroyed : > a foregoing cpio-Archive. Is there a solution for saving files and OnLine : > 7 !!! on the same tape??? - Informix-Hotline has no answer : > Thanks, : > Robert : > (e-mail: wally@datasystems.co.at) : I spoke with some Informix people some time ago about putting more than : one database on one tape using dbexport. They told me that it doesn't : matter which device you use (rewind or no-rewind), their software : (dbexport and ontape) always does a rewind. I don't believe this is the case. Ontape requires that you use a rewind on close tape device. If you don't use this type of device, you'll have major problems if your ontape archive spans multiple tapes. Ontape does not ever explicitly attempt to rewind a tape. But if your archive fits on a single tape, or portion thereof, you could probably share the tape with non-informix stuff. Make sure you use a no-rewind on open and close device. However, it's probably not supported, your mileage may vary, etc, etc, blah blah blah. Onarchive does its own thing with the tapes. It controls, through the use of ioctl() calls, the movements of the tape. Onarchive will assume that it owns any tape you use with it, as discovered by the original poster. Offhand I don't know what would happen with dbexport and a no-rewind tape device. ---------------------------------------------------------------------------- Bill Glidden Sr. Advanced Support Engineer E-mail: glidden@informix.com Advanced Support (813) 615-0625 Informix Software, Inc. ----------------------------------------------------------------------------