Tool to verify a data cartridge

We backup Informix data using ontape -s, and we have a question: How can we make sure that every data cartridge will perform a successful restore? There are some utility to verify this data cartridges without perform a restore? Thanks Marco mailto:marcorvr@hotmail.com

Marco: What you need to get a hold of is a tool called archecker. It ships with version 7.30 of the product and this version(4.4) will validate both the 7.2 and 7.3 ontape archives. I have cut out some of the more interesting parts of some notes I have. Please be aware that this tool is undocumented with version 7.3, it will be documented with onbar for version 9.2 & 8.3. Purpose ------ The archecker is designed to validate a level 0 archive without impacting the production system, ensuring that all data required to restore a system exists on the archive tapes in the correct format. Features -------- - Checks a level 0 archive after the archive has completed - Verification need not be done on the machine hosting the OnLine system. - Minimal system resources are required, even for large archives. - Restartable at tape level. - Detects missing pages and indicates affected table(s). - Can also verify data in similar fashion to oncheck -cd. - Progress monitor Sample configuration file: ---------------------------- AC_STORAGE /tmp AC_MSGPATH ./msg.log AC_TAPEDEV /dev/rmt/0 AC_TAPEBLOCK 16 Valid Configuration file parameters ----------------------------------- AC_STORAGE The name of a directory where temporary files are kept. The amount of space required is determined by two factors: the number of chunks and the number of tables. To give you a guide, a 50GB OnLine system should take about 20MB (your mileage may vary). DEFAULT: your current directory. AC_MSGPATH Pathname of archecker's message log. All error and status messages will be placed in this file. DEFAULT: ./msg.log AC_TAPEDEV Name of the tape device. DEFAULT: none AC_TAPEBLOCK The size of the tape block in KB. It must match the blocksize used for the archive, otherwise an error will indicate the correct blocksize to use. DEFAULT: none Recommend syntax for ontape: archecker -tdsv Verbose Option -------------- With the verbose option on, dots are to the screen--one for every 25MB of data read from the tape. Each line of dots represents 1GB of data. When the tape is changed, the time is recorded. Hope this helps, ---jmiller Marco Rojas wrote: > We backup Informix data using ontape -s, and we have a question: How can we > make sure that every data cartridge will perform a successful restore? There > are some utility to verify this data cartridges without perform a restore? > > Thanks > > Marco > mailto:marcorvr@hotmail.com