System Administration Guide, Volume 1

Choosing Which Media to Use

You typically back up Solaris systems using:

You can perform backups using diskettes, but this is time-consuming and cumbersome.

The media you choose depends on the availability of the equipment that supports it and of the media (usually tape) that you use to store the files. Although you must do the backup from a local system, you can write the files to a remote device.

The table below shows typical media used for backing up file systems and shows the storage capacity for each. Capacity depends on the type of drive and the data being written to the tape.

Table 47-1 Media Storage Capacities



1/2-inch reel tape 

140 Mbytes (6250 bpi) 

2.5-Gbyte 1/4 inch cartridge (QIC) tape 

2.5 Gbytes 

DDS3 4-mm cartridge tape (DAT) 

12 - 24 Gbytes 

14-Gbyte 8-mm cartridge tape 

14 Gbytes 

DLTTM 7000 1/2-inch cartridge tape

35 - 70 Gbytes