Archive Devices

Informix has somewhat of a split personality with regard to archive devices. The tb/ontape program can use any UNIX device as an archive destination, but it's really designed to archive to tape. Actually, tape is the only option that makes sense in many cases, especially if your disk space is limited. Archiving to tape reduces your exposure to catastrophic disk crashes. If you are archiving to disk and crash a raw disk because of hardware problems, you may well also crash the disk device you are using for the archive. With tape, you spread your exposure to mechanical problems across two totally separate types of devices, most often controlled by different controller boards. In a pinch, you can archive to a UNIX file, but it takes ...

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