Specifications

GL–4 Compaq StorageWorks HSG80 Array Controller ACS Version 8.5 Maintenance and Service Guide
command line
interpreter
The configuration interface to operate the controller software.
configuration file A file that contains a representation of a storage subsystem’s configuration.
container 1) Any entity that is capable of storing data, whether it is a physical device or
a group of physical devices. (2) A virtual, internal controller structure
representing either a single disk or a group of disk drives linked as a
storageset. Stripesets and mirrorsets are examples of storageset containers the
controller uses to create units.
controller A hardware device that, with proprietary software, facilitates communications
between a host and one or more devices organized in an array. HS family
controllers are examples of array controllers.
copying A state in which data to be copied to the mirrorset is inconsistent with other
members of the mirrorset.
See also normalizing.
copying member Any member that joins the mirrorset after the mirrorset is created is regarded
as a copying member. Once all the data from the normal member (or
members) is copied to a normalizing or copying member, the copying member
then becomes a normal member.
See also normalizing member.
CSR An acronym for control and status register.
DAEMON Pronounced “demon.” A program usually associated with a UNIX system that
performs a utility (housekeeping or maintenance) function without being
requested or even known of by the user. A daemon is a diagnostic and
execution monitor.
data center cabinet A generic reference to large DIGITAL subsystem cabinets, such as the
SW600-series and SW800-series cabinets in which STORAGEWORKS
components can be mounted.
data striping The process of segmenting logically sequential data, such as a single file, so
that segments can be written to multiple physical devices (usually disk drives)
in a round-robin fashion. This technique is useful if the processor is capable of
reading or writing data faster than a single disk can supply or accept the data.
While data is being transferred from the first disk, the second disk can locate
the next segment.