A RAID array is an array of multiple hard drives which provide data security through redundancy and can also provide increased I/O performance in certain usage scenarios.
When one disk in a mirrored RAID array fails it is necessary to replace that disk with another one. The machine generally must be powered down in order to perform hardware maintenance, although some machines support ho...
Subscriber exclusive content
A Red Hat subscription provides unlimited access to our knowledgebase of over 48,000 articles and solutions.