I think that using tar might be preferable. Using split you would have files with numbered extensions, but reassembling the file may be difficult.
You would need to append each successive disk to the end of the file you are restoring.
tar stands for tape archiver. The dar program (disk archiver) may be better suited for backing up to dvd's. It will also allow you to use compression.
An archive that large would take up 22 dvd discs. If you have a small error in any one of them, the archive is lost. You may want to purchase a large external hard drive to make the backups instead. You might also consider not using such a large file. Before I did a fresh install, I backed up my documents using both tar and split. I was backing up to a usb drive with fat32 filesystem. Because of the filesize limit, I piped the output of tar to split to create the files on the usb disk. I was able to restore by CATing the split files together with the output piped into tar. Using pipes, I didn't have to create a very large archive at all. The data saved wasn't 100GB in size, but it was around 10GB. I used par2 to create redundancy files in case some of the files became corrupted.
Last edited by jschiwal; 06-05-2006 at 08:54 AM.