Computer hardware maintenance deals with repairing and replacing broken and failing computer hardware. Preventative maintenance plays a role as well. Many medium and
large companies rely on computer maintenance to ensure that their equipment is able to cope with demand.
Computer hardware is generally reliable, and most computer problems are related to software issues. However, computer hardware can become damaged over time, and
computer hardware maintenance is necessary for keeping computers up and running. Many companies stand to lose a considerable amount of money if their computers stop running, so maintenance is often a top priority.
Most hardware breaks without warning, so having backup parts is necessary for large servers. Hard drives, in particular, are vulnerable to suddenly stopping, and maintenance experts can ensure that lost data is recovered as quickly as possible.
Computer maintenance sometimes deals with consulting. A maintenance expert might offer advice about RAID arrays, which allow a file system to recover gracefully.