HP SAN Virtualization Services Platform User Manual

Page 77

Advertising
background image

SFP

Small form-factor pluggable. The 2 Gbps or faster form factor of the removable
optical transceiver used by the Data Path Module, HBAs, and most Fibre Channel
switches. It uses the LC-type connector.

snapclone

A VSM service that creates physical copies of VSM virtual disks without using
host resources.

snapshot

Either of the following:

A VSM service that creates multiple low-capacity, read-write snapshots of
virtual disks and makes the snapshots available to any number of hosts, for
purposes such as data recovery, backup and testing, while the original virtual
disk stays online and continues to be updated.

A read-write entity that makes PiT data available to any host as a logical
drive.

SNMP

Simple Network Management Protocol. The protocol used by the Data Path
Module to report exception conditions to third-party network management
applications.

SSH

Secure Shell. A protocol and application for communicating with a remote
computer system. SSH is a more secure alternative to using telnet to communicate
with the Data Path Module.

storage pool

In VSM, a set of back-end LUs or stripe sets from which you can create virtual
disks and allocate them to hosts. SVSP storage pools enable you to classify
storage elements into classes of service and provide different classes of service
to different hosts.

stripe set

In VSM, a set of back-end LUs across which VSM stripes data, optionally used
to build storage pools.

SVSP domain

Consists of all SVSP components and the storage they manage.

synchronous
mirroring

A mode of data mirroring in which the updates on the mirror site are synchronized
between destinations.

system software
image

A software component, capable of being updated, that contains the operating
environment for the Data Path Module, including the SVSP VSM agent for the
Data Path Module.

target

Receives commands from the initiator, and after execution, returns
acknowledgement to the initiator.
See also

initiator

.

target device

A device that contains one or more target ports.

target port

A Fibre Channel port capable of presenting one or more SCSI LUNs to servers.
A target is also known as the destination of a server's I/O request.

task

In VSM, a process that carries out a data moving task on a group.

temporary virtual
disk

A virtual disk created when a PiT is created on another virtual disk. The temporary
virtual disk holds any modifications redirected from the original virtual disk after
the PiT is created.

HP StorageWorks SAN Virtualization Services Platform 3.0 Virtualization Services Manager Demo

Mode user guide

77

Advertising