One highly desirable aspect of tar is that when you load files onto a tape with tar and then restore them onto another system, the original users and groups are retained.įbackup has a lot of functionality associated with it, such as specifying whether the backup is full or incremental, different levels of backup, files and directories to be included or excluded, support for a graph file which specifies files to be included and excluded, and other advanced features. When sending files to another UNIX user, I would strongly recommend tar, but tar is as slow as molasses, so you won't want to use it for your full or incremental backups. You can append files to the end of a tar tape, which you can't do with fbackup. tar is the oldest UNIX backup method and therefore runs on all UNIX systems. This is the most widely used format for exchanging data with other UNIX systems. You will find that many applications are shipped on tar tapes. tar is the most popular generic backup utility. Tar is widely considered the most portable of the backup and restore programs. Here is a brief overview of backup programs I'll cover in upcoming sections: Advanced backup tools, however, can make tasks such as centralized backup and overall management of backup much easier.The last section in this chapter covers backup of Virtual Partitions (vPars) and can be applied to hard partitions (nPartitions) as well. I won't cover any advanced backup programs such as HP's OmniBack. In this chapter I'll give an overview of several backup commands. Secondly, a backup program is used to back up the balance of data on the system. You can create a bootable recovery archive across a network with make_net_recovery.
The first is to use the make_tape_recovery command of Ignite-UX to create a bootable backup tape of their root volume ( make_tape_recovery is covered in Chapter 9). Most HP-UX system administrators employ a dual backup strategy.
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