On Thu, 13 Dec 2001 at 12:22pm, Adolfo Manuel Pach�n Rodr�guez wrote > I've an Linux RH 7.1 system with an HP-24DAT SCSI. I want to have one > tape per day, in a week. I don't understand the dumpcycle theorie. Can > someone help me? > I don't quite understand what you're asking, but here's a simple explanation of the broad theory. 'dumpcycle' determines the maximum number of days you want between full backups of a particular filesystem. runspercycle is the number of times you will run amdump in one dumpcycle. So, e.g., if you want a full backup of each filesystem at least once a week, and you'll run amdump every weeknight, then you want:
dumpcycle 1 week runspercycle 5 tapecycle is the number of tapes you have. It needs to be at least equal to runspercycle. It really should be at least one or two greater, to account for bad runs requiring an amflush. The bigger your tapecycle, the longer your history. In the above example, if you wanted a two week history of backups (with two extra for mishaps), you'd want tapecycle 12 HTH. -- Joshua Baker-LePain Department of Biomedical Engineering Duke University
