Owner's manual

small computer
system interface
See SCSI.
Snapclone A virtual disk that can be manipulated while the data is being copied. Only an
Active member of a virtual disk family can b e snapcloned.
The Snapclone, like a snapshot, reflects the c ontents of the source virtual disk at
a particular point in time. Unlike the snapshot, the Snapclone is an a ctual clone
of the source virtual disk and immediately becomes an independent Active
member of its own virtual disk family.
snapshot A temporary virtual disk (Vdisk) that reflects the contents of another virtual disk
at a particular point in time. A snapshot op eration is only done on an active
virtual disk. Up to seven snapshots of a n active virtual disk can exist at any
point. The active disk and its snapshot constitute a virtual family.
See also active virtual disk, virtual disk copy,andvirtual disk family.
SSN Storage System Name. An HP Command View EVA-assigned, unique
20-character name that identifies a specific storage system.
storage carrier See carrier.
storage pool The aggregated blocks of available storage in the total physical disk array.
storage system The controllers, storage devices, enclosures, c ables, and power supplies and
their software.
Storage System
Name
See SSN.
switch An electro-mechanical device that initiates an action o r completes a circuit.
TB Terabyte. A term defining either:
• Adatatransferrate.
• A measure of either storage or memory capacity of 1,099,5111,627,776
(2
40
)bytes.
See also TBps.
TBps Terabytes per second. A data transfer rate of 1,000,000,000,000 (10
12
) bytes
per second.
TC Termination Code. An Enterprise Storage System controller 8-character
hexadecimal display that defines a problem causing controller operations to halt.
See also IDX and param.
Termination Code See TC.
termination event Occurrences that cause the storage system to cease operation.
terminator Interconnected elem ents that form the ends of the transmission lines in the
enclosure address bus.
topology An interconnection scheme tha t allows multiple Fibre Channel ports to
communicate. Point-to-point
, arbitrated loop, and switched fabric are all Fibre
Channel topologies.
transceiver The device that converts electrical signals to optical s ignals at the point where the
fiber cables connect to the FC elements such a s hubs, controllers, or adapters.
uninitialized sys-
tem
A state in which the storage system is not ready for use.
See also initialization.
UNRECOVERABLE
Condition
A d rive enclosure EMU condition report that occurs when one or more elem
ents
inside the enclosure have failed andhavedisabledtheenclosure.Theenclosure
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Glossary