Re: tbtape questions

On 5 Oct 1994, Mike Plunkett wrote: > rcline@netcom.com (robert j cline ii) writes: > > Frank Dauns (dauns@andrews.edu) wrote: > > > > : Secondly is there anyway to verify that the tapes written by tbtape are > > : valid & correct without having to do a restore ? > > > > > In regards to verify the tapes, I have not found a way to do that > > without a restore. > > > > I was thinking, perhaps a Unix utility would serve as a physical > verification of the tape, such as dd or cpio. > > It would not verify logical structure, of course. We would still > have to trust Informix to do that properly. I wouldn't expect any > problem, though. Tape problems are almost always physical. > > You can give yourself some peace of mind, but not "prove" anything by running tblog and grepping the output for information you expected. For example "Your tblog statement ..." | grep "log number" will provide you with a series of lines showing the log file numbers that have been backed up to that tape. You might also devise some means of finding the time of first and last commits or something that might make you feel better. Of coure, it won't verify structure or anything else and reading from tape the process isn't particularly fast. Good luck -- Con Woodall Colorado St. U.; Veterinary Teach. Hosp.; cwoodall@vth1.vth.colostate.edu