Krsnendu dasa wrote: > 1. What is parity? What are the parity files for and How do you use > them with the archives? > See http://en.wikipedia.org/wiki/Parchive.
Basically if one of the archive files has some corruption, and it's not too much, then the parity files will allow you to recover from that corruption. The percentage you choose depends on how much you trust your media. > 2. I chose bZ2 for my backup, to minimize disk usage. The archiving > took 680mins to backup. If I chose gzip instead how much difference > would there be? How much bigger would the archive be and how much > faster would it be. I am planning to do quite a few backups to DVD in > future, so I thought now would be the time to ask. gzip is a lot faster, but is only an extra small percentage larger (maybe 5% or so). It all depends on your data to how compressible it is (e.g. jpegs will compress to about the same size with bzip2 or gzip) so try a gzip archive and see how it compares. ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ BackupPC-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/backuppc-users http://backuppc.sourceforge.net/
