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RAID Jargon - RAID to ROC

I hope you find this glossary useful. Even I get confused sometimes by the new words that vendors throw at me.

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Acronym (click for examples) Description Related info

DVRAID Digital Video RAID is a proprietary RAID technology from ATTO Technology that is "optimized for digital content creation environments that require protection in the event of a disk failure without the performance penalty traditionally seen with parity RAID." SSDs in IPTV, movie creation and tv

MAID MAID (Massive Array of Idle Disks) is a whimsical term from COPAN Systems used for disk to disk backup systems. how the backup market moved from tape to disk - timeline of key events

RAIC RAIC - redundant array of independent chips - was coined in the 1990s by Solid Data Systems SSD history

RAID Redundant Array of Inexpensive Disks. In the 1980's when this term was originated, by IBM, you could buy 2 types of disk drives, either low cost drives such as used in the average PC, or high speed high performance drives as used in digital video effects systems or mainframes. Because of the larger market for PC disks, they eventually became the technology drivers and effectively killed off the higher cost alternatives. However the original concept remains valid. You can create a disk array which looks electronically just like a bigger ordinary disk, by attaching a bunch of disks working in parallel and connected to a RAID controller interface.

The combined system can be programmed to provide desirable characteristics such as faster data throughput (for example a 4 disk wide system could have a data throughput capability 4 times faster than a single disk). RAID can also provide fault tolerance, because redundant disks can be added into the array and the data split up in such a way that there is no loss of performance or data ability if any single disk fails. However, RAID doesn't speed up access time, which is why some applications also use solid state disks.

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RAIGE RAID Across Independent Gigabit Ethernet) is a creation of Pivot3 although some of concepts sound similar to how Google implements its internal storage infrastructure.

RAIN Redundant Array of Independent Nodes is an Adaptec creation

RAISE Redundant Array of Independent Silicon Elements is a term invented by SandForce. Their SSD controller uses this protection scheme inside 1.8" and 2.5" SSDs.

ROC RAID on Chip storage chips

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