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■    What to back up

■    Where to back it up

■    When to back up

■    How often to back up

■    Who should be responsible for backups

■    Where media should be stored

■    How often to test backups

■    The procedure to follow in case of data loss

This section covers some of the items that are contained in a common backup plan, including:

■    Backup media options

■    Backup utilities

■    Backup types

■    Tape rotation schedule

Backup Media Options

When you back up your network’s data, you must have something on which to store that data, which is called the backup medium. You have several options, including:

■    Small-capacity removable disks

■    Large-capacity removable disks

■    Removable optical disks

■    Magnetic tape

Let’s examine the advantages and disadvantages of each type, starting with small-capacity removable disks.

Small-Capacity Removable Disks

Small-capacity disks are magnetic media disks with a capacity of less than 500MB, which can be removed from their drives and replaced as they

get filled. They are popular because of their low cost and ease of use. Additionally, because they are inexpensive, many computers come with one or more of these drives. Table 9.1 lists some examples of this type of backup medium and their popular capacities.

9.1 Popular Small-Capacity Removable Disks

Capacity

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