HP StorageWorks Command Console V2.5 User Guide (AA-RV1UA-TE, March 2005)

Glossary
142 Command Console V2.5 User Guide
striping A RAID technique in which host data is stored in pieces called
strips. One strip is stored on each member device in the virtual
disk. Together, the strips across the member devices form a
stripe.
subsystem for the
HSxxx controller
A controller and an array of physical devices attached to a host.
supported device A device tested as functionally compatible with a controller in
an approved hardware and software configuration.
surviving controller The controller in a dual-redundant pair of HS-series controllers
that assumes service to its companion's devices when the
companion controller fails.
target A SCSI bus device. When one device addresses another device
on a SCSI bus, it uses the target device's target ID to uniquely
identify it.
target ID The physical address a bus initiator uses to connect with a bus
target. Each bus target is assigned a unique target address. Also
used to refer to a SCSI device ID itself.
TCP/IP An acronym for Transmission Control Protocol/Internet
Protocol. This popular Internet network protocol uses IP
addressing, where each network node has a unique network
address. The Client uses the TCP/IP to communicate with
Agent.
transfer rate Date transfer speed over a SCSI bus. The transfer rate depends
on the bus speed and width. Transfer rates are usually expressed
in units of megabytes per second.
Some controllers allow you to set the maximum transfer rate on
either their host or device bus. This feature allows you to limit
the rate in special situations, such as those that require long bus
cabling.
unit See virtual disk.
volume See virtual disk.
volume set See virtual disk.