Dell IP4700 Service Guide - Page 119
Glossary, BTU British Thermal, cache, CRU customer, replaceable unit, DAE Disk Array, Enclosure
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Glossary The terms defined here are important to installing and maintaining a storage system. BBU bind BTU (British Thermal Unit) cache CRU (customerreplaceable unit) B See SPS (standby power supply) In the context of a disk-array storage system, the procedure by which you format one or more disk modules into one LUN (logical unit) - usually as one of several types of RAID group. A standard measure of a device's heat output. C See storage-system caching. A hardware component, such as a disk module, that anyone can install or replace. DAE (Disk Array Enclosure) disk drive module D A storage device that includes an enclosure, up to 10 disk modules, one or two Fibre Channel link control cards, and one or two power supplies. Another name for disk module. IP4700 Installation and Service Guide g-1
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