HP SAN Virtualization Services Platform User Manual
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SVSP
An HP StorageWorks product that works with SAN storage systems to provide
local replication capabilities within the SVSP domain, providing local point-in-time
(PiT) copies of data, using snapshots of data, based on changes to virtual disks.
CLI
Command line interface. The Data Path Module provides a CLI through the local
administrative console (serial port console), telnet, or SSH.
Continuous Access
SVSP
An HP StorageWorks product that works with SAN storage systems to provide
asynchronous data replication (remote mirroring) between SVSP domains to
support disaster tolerance requirements. Data replication can be bidirectional,
meaning that an SVSP domain can be both a source and a destination.
crash consistent
The state of the media behind a logical unit after a server crash. Pending writes
are lost.
cross-connected
A property of a high-availability configuration in which both Data Path Modules
connect to a dual fabric SAN, allowing either Data Path Module to access both
controllers of a dual-controller storage array.
Data Path Module
A SAN-based device, separate from the core Fibre Channel switching
infrastructure, that provides storage virtualization services across heterogeneous
hosts, storage, and SAN fabrics. The device runs a VSM fabric agent,
communicates with a VSM server, is able to process virtual disk information,
present virtual disks to servers as LUNs, and handle their I/Os by routing them
to storage systems managed by the VSM server.
default boot set
The boot set that becomes the active boot set when the system is started, unless
the user selects a different boot set. Applies to the DPM.
DPM
See
Data Path Module
.
DPM group
An entity that contains one primary and one secondary Data Path Module. Data
Path Modules can only present virtual disks to hosts after they have been added
to DPM groups.
entity
A virtual object defined as part of VSM’s virtualized configuration of a SAN.
EVA
HP StorageWorks Enterprise Virtual Array. A high-performance, high-capacity,
and high-availability storage solution for the high-end enterprise class marketplace.
Each EVA storage system consists of a pair of HSV virtualizing storage controllers
and the disk drives they manage.
fabric
A network of one or more Fibre Channel switches that transmit data between
any two N_ports attached to the member switches.
fabric agent
In VSM, a virtualization agent that runs on a DPM. The fabric agent receives
virtual disk information from a VSM server, sets the mapping tables of the DPM,
and enables the DPM to route I/O data from hosts to storage systems.
FC
Fibre Channel. A serial data transfer architecture developed by a consortium of
computer and mass storage system manufacturers that requires very high
bandwidth. Fibre Channel provides high reliability transport protocols.
See also
and
.
front-side path
A path between the host (host bus adapter) and the Data Path Module.
Glossary
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