Project Directory Management

Backups

It is the responsibility of the project manager to arrange for the disk to be backed up. He/she should decide what should be backed up, how often it should be backed up, and by whom.

Unfortunately, Unix does not handle backups too gracefully. In particular, there may be a problem with backups which require more than one tape. Since an exabyte tape has a capacity of 5GB, you may wish to make several backups, each containing less than 5GB. To check the size of directories, use the du command. The -k option gives the size in kilobytes, and the -s option gives a summary of the space used, without listing individual files. For a directory caltemp, the usage is du -ks caltemp.

Details of tape managements and scripts for backing up disks are available in How to back up your Unix project disk at FNAL These directions were written by John Krane, and are also available on d0cha as ~jkrane/d0_kback/d0_kback.doc. They are an updated version of the directions on his home page.

This page is maintained by Tommy