Hitachi MK-97DF8018-00 - Manual (Page 13)

SnapShot Overview 1–1
Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide
1
SnapShot Overview
Snapshot creates virtual copies of data volumes within Hitachi
Simple Modular Storage systems. These copies can be used for
recovery from logical errors. They are identical to the original
volume at the point in time they were taken.
This guide provides instructions for planning and designing,
configuring and testing, and using and monitoring SnapShot. In
this chapter, see:
ˆ Copy-on-Write SnapShot Software
ˆ Hardware and Software Configuration
ˆ How SnapShot Works