Table of Contents
Advertisement
Function
Chapter 3
This chapter describes basic terms and functions needed for operations using snapshot.
Figure 3-1: Snapshot Components
BV (Base-Volume)
An original volume from which replication is made.
SV (Snapshot-Volume)
A virtual volume that saves BV image at a certain time by the instruction of snapshot
creation.
The created snapshot-volume is accessed using a link-volume. (The snapshot-volume cannot
be allocated to a server directly.)
A one-to-one relationship of BV and SV is referred to as a pair.
LV (Link-Volume)
LV is a virtual volume that establishes connection with BV or SV and implements indirect
access. LV that a server can access can be linked with a different SV. This enables access to
any snapshot.
A list of BV or SV volumes (link permit volume) that LV can access is referred to as a link
control list (LCL).
10400422-002 02/2013
3-1
©2013 Overland Storage, Inc.
Advertisement
Table of Contents
