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HP StorageWorks 4400 Enterprise Virtual Array user ... - BUSINESS IT

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Snapclone A virtual disk that can be manipulated while the data is being copied. Only an<br />

Active member of a virtual disk family can be snapcloned.<br />

The Snapclone, like a snapshot, reflects the contents of the source virtual disk at<br />

a particular point in time. Unlike the snapshot, the Snapclone is an actual clone<br />

of the source virtual disk and immediately becomes an independent Active<br />

member of its own virtual disk family.<br />

snapshot A temporary virtual disk (Vdisk) that reflects the contents of another virtual disk<br />

at a particular point in time. A snapshot operation is only done on an active<br />

virtual disk. Up to seven snapshots of an active virtual disk can exist at any point.<br />

The active disk and its snapshot constitute a virtual family.<br />

See also active virtual disk, virtual disk copy, and virtual disk family.<br />

SSN Storage System Name. An <strong>HP</strong> Command View EVA-assigned, unique 20-character<br />

name that identifies a specific storage system.<br />

storage carrier See carrier.<br />

storage pool The aggregated blocks of available storage in the total physical disk array.<br />

storage system The controllers, storage devices, enclosures, cables, and power supplies and<br />

their software.<br />

Storage System<br />

Name<br />

See SSN.<br />

Switch An electronic component that switches network traffic from one connection to<br />

another.<br />

TB Terabyte. A term defining either:<br />

A data transfer rate.<br />

A measure of either storage or memory capacity of 1,099,5111,627,776<br />

(2 40 ) bytes.<br />

See also TBps.<br />

TBps Terabytes per second. A data transfer rate of 1,000,000,000,000 (10 12 ) bytes<br />

per second.<br />

TC Termination Code. An <strong>Enterprise</strong> Storage System controller 8-character<br />

hexadecimal display that defines a problem causing controller operations to halt.<br />

See also IDX and param.<br />

Termination Code See TC.<br />

termination event Occurrences that cause the storage system to cease operation.<br />

terminator Interconnected elements that form the ends of the transmission lines in the<br />

enclosure address bus.<br />

topology An interconnection scheme that allows multiple Fibre Channel ports to<br />

communicate. Point-to-point, arbitrated loop, and ed fabric are all Fibre Channel<br />

topologies.<br />

transceiver The device that converts electrical signals to optical signals at the point where<br />

the fiber cables connect to the FC elements such as hubs, controllers, or adapters.<br />

<strong>HP</strong> <strong>StorageWorks</strong> <strong>4400</strong> <strong>Enterprise</strong> <strong>Virtual</strong> <strong>Array</strong> <strong>user</strong> guide 121

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