Dell PowerVault DP600 - Manual (Page 11)

11
To determine which storage method to use, you must consider the relative importance of your
organization's protection requirements.
• How much data your organization can afford to lose. Realistically, not all data is equally
valuable. Organizations must weigh the impact of loss against the costs of protection.
• How quickly recovered data must be available. Recovery of data that is critical to ongoing
operations is typically more urgent than routine data. On the other hand, organizations should
identify servers providing essential services during working hours that must not be disrupted
by recovery operations.
• How long your organization must maintain data. Long-term storage might be necessary
for business operations, depending on the type and contents of the data. An organization
might also be subject to legal requirements for data retention, such as the Sarbanes-Oxley
Act and the Data Retention Directive.
• How much your organization can spend on data protection. When considering how much
to invest in data protection, organizations must include the cost of hardware and media, as
well as the personnel costs for administration, management, and support.
You can use DPM to back up data to both disk and tape, giving you the flexibility to create
focused, detailed backup strategies that result in efficient and economic data protection. When
you need to restore a single file or an entire server, recovery is fast and simple: you identify the
data, and DPM locates the data and retrieves it (although your assistance might be needed if the
tape has been removed from the library).