Question

Following a recent outage, a systems administrator is conducting a study to determine a suitable bench stock on server hard drives.

Which of the following metrics is MOST valuable to the administrator in determining how many hard drives to keep-on hand?

A. TTR
B. ALE
C. MTBF
D. SLE
E. RPO

Answer 1

The most valuable metric to the administrator is MTBF (Mean Time Between Failures), which measures the expected time between failures of server hard drives.

Step-by-step explanation:

The metric that is most valuable to the administrator in determining how many hard drives to keep on hand is MTBF (Mean Time Between Failures).

MTBF is a measure of the expected time between failures of a system, in this case, server hard drives. By knowing the MTBF of the hard drives, the administrator can estimate the frequency of failures and determine the appropriate number of spare hard drives to have in the bench stock.

For example, if the MTBF of a particular hard drive is 500,000 hours, the administrator might decide to keep a certain number of spare hard drives to cover a certain time period, such as one year. This helps ensure that there are enough replacement drives available to minimize downtime in case of failures.