Re: For IFMX GURU : ONTAPE RESTORE Q

Adrian Flynn <adrianf.flynn@bt.com> offerred: +We did discover that ontape opens TAPEDEV twice during the restore +and we have a PERL script that forks and execs the uncompress +(redirecting it to TAPEDEV) and also starts the ontape -r. Essentially +doing something like the following to perform a restore: + +Process 1 + +(uncompress -c archive.Z > $TAPEDEV; uncompress -c archive.Z > $TAPEDEV) + +where the TAPEDEV onconfig parameter is set to the value of $TAPEDEV +(named pipe) and archive.Z is the the compressed level-0 archive +written by another script. + +Process 2 + +ontape -r + +continue as normal. Ah, quite clever (also quite unsupported by Informix, but no matter). Does the first uncompress have to complete before the second one picks up, or will ontape's closing of it's end of the pipe cause the first uncompress to terminate? Dave ** Dave Kosenko <davek@summitdata.com> ** Director of Training Services (732) 469-4070 ** Summit Data Group (an Informix Authorized Education Center) ** Find my advice useful? Let me teach you everything I know about ** Informix. Sign up for OFFICIAL Informix training at SDG. ** For details, see http://www.summitdata.com/training