Determine what storage devices you need
Before backing up, determine what and how many storage devices you need.
Ask the following interrelated questions to determine what storage devices you need. For example,
the speed and type of storage devices partly determine the number of storage devices that you need.
- What type of storage devices do you need?
The transaction volume and the size of your database are major factors in determining the type of storage devices that you need.
- What is the availability requirement for each device?
Is it important for your storage devices to allow random and sequential access? If so, you cannot use tape storage devices.
- How many storage devices do you
need?
The number of storage devices that you need depends on the storage devices you have, how much transaction activity occurs on the database server, how fast throughput is, how much time you can allow for backups, and other similar factors.