Sorry to resurrect an ancient question, but I stumbled on this while looking for examples of Redundant Acronym Syndrome (RAS, or RAS Syndrome). While @chaos's answer is correct, it is lacking in justification, and I find it less than satisfying.
As we know, RAID stands for Redundant Array of Independent / Inexpensive Disks. An array of disks is a thing, so RAID is a noun, and you are free to use it like one. Array, meaning that once context establishes that we're talking about RAID, and you need a noun to refer to it, you can use "RAID" and "array" interchangeably, choosing whichever feels better in the moment.
I prefer to avoid "RAID array," but I find it less egregious than things like "PIN Number" because array isn't the last word in the acronym. If it were instead called Redundant Independent Disk Array, then I would object more strenuously to "RIDA array."
Like many nouns, you can also use RAID as an adjective to qualify related nouns (dog is clearly a noun, but when used in dog walker, it's an adjective):
- RAID volume: the logical software entity recognized by your operating system, representing (a portion of) the storage space offered by the array
- RAID controller: the circuits and/or software responsible for translating reads and writes for a RAID volume into corresponding reads and writes for the individual disks, as well as handling parity, repair, etc.
- RAID enclosure: a box, if present, enclosing all of the disks in the array, usually including a RAID controller and presenting itself to the connected computer as a single disk.
- RAID setup: the entire system (hardware components, connections, drivers, configuration settings, volume layout)
In the case of your actual question, @chaos's answer is correct: you configure the OS to boot from a RAID volume. Note that a single RAID array may comprise multiple volumes, so volume is not an appropriate way to refer to the set of physical disks. For that, I think array is the right choice, with RAID and disk array as the preferred backups. I do not have a strong objection to RAID array if that feels better in situ.
automated teller machine
predatesAsynchronous Transfer Mode
by some 20 years if not more, according to for example Google Ngram Viewer.