Re: onlog -d [device] gives "bad tape: tape format not recognized"

TheBiggestPotatoeYouHaveEverSeen <TBP@Nospam.Nothere.Co.Uk> wrote in message news:<0F5Sb.13066$JL4.106295@newsfep4-glfd.server.ntli.net>... > Jonathan Leffler wrote: > > ron wuthrich wrote: > > > >> Am trying to use the informix onlog utility to read log files from a > >> tape. > >> I've tried different approaches, but here's a typical: > >> > >> ism_op -unmount /dev/rmt/0cbn #to unmount > >> mt -f /dev/rmt/0cbn rewind # to rewind > >> onlog -d /dev/rmt/0cbn # to read tape> >> > >> onlog prompts to mount the tape, then gives the error listed in the > >> subject. informix storage manager and onbar logs both indicate > >> successful writes to the tape for the logical logs, so I believe it is > >> being written to ok. using onbar to create logs. working in informix > >> 7.34 dynamic server on solaris intel. tape device agrees with the > >> LTAPEDEV parameter in onconfig. LTAPEBLK set to 1024. > > > > > > > > Is that a non-rewind device? Bad idea...Informix programs open the > > device, read the first block, close it (expecting it to rewind), reopen > > it and complain when they don't get the same data again. That's why > > you're told to use a rewind device. > > > > OK - actually, I don't know that this is your problem. Nevertheless, it > > could be. > > > > > It is true that having TAPEDEV and / or LTAPEDEV set to a on-rewind > device can cause issues. > > However, ism requires the devices to be non-rewind and that is probably > why you went that route. > > Still, reading the logs backed up using onbar is ... apparently a > feature request ;)) Call support and quote Bug 115798, they should be > able to tell you how to do it. Yes, we were compelled to use a no-rewind device. I believe I have located someone in the outfit here with informix support access... we will refer to your bug# and see what happens. Thanks