161 lines
2.6 KiB
HTML
161 lines
2.6 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<HTML
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><HEAD
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><TITLE
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>What is a snapshot?</TITLE
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><META
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NAME="GENERATOR"
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CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK
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REL="HOME"
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TITLE="EVMS User Guide"
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HREF="index.html"><LINK
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REL="UP"
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TITLE="Creating snapshots"
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HREF="evmscreatesnap.html"><LINK
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REL="PREVIOUS"
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TITLE="Creating snapshots"
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HREF="evmscreatesnap.html"><LINK
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REL="NEXT"
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TITLE="Creating snapshot objects"
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HREF="createactivsnap.html"></HEAD
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><BODY
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CLASS="sect1"
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BGCOLOR="#FFFFFF"
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TEXT="#000000"
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LINK="#0000FF"
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VLINK="#840084"
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ALINK="#0000FF"
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><DIV
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CLASS="NAVHEADER"
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SUMMARY="Header navigation table"
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><TR
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COLSPAN="3"
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ALIGN="center"
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>EVMS User Guide</TH
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></TR
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><TR
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><TD
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WIDTH="10%"
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ALIGN="left"
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VALIGN="bottom"
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HREF="evmscreatesnap.html"
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ACCESSKEY="P"
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>Prev</A
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></TD
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><TD
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WIDTH="80%"
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ALIGN="center"
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VALIGN="bottom"
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>Chapter 11. Creating snapshots</TD
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><TD
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WIDTH="10%"
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ALIGN="right"
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VALIGN="bottom"
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><A
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HREF="createactivsnap.html"
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>Next</A
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></TD
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></TR
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></TABLE
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><HR
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ALIGN="LEFT"
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WIDTH="100%"></DIV
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><DIV
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CLASS="sect1"
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><H1
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CLASS="sect1"
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><A
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NAME="whatissnapshotting"
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></A
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>11.1. What is a snapshot?</H1
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><P
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>A snapshot represents a frozen image of a volume.
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The source of a snapshot is
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called an "original."
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When a snapshot is created, it looks exactly like the original
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at that point in time.
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As changes are made to the original, the snapshot remains the
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same and looks exactly like the original at the time the snapshot was
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created.
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</P
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><P
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> Snapshotting allows you to keep a volume online while a backup is created.
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This method is much more convenient than a data backup where a volume
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must be taken offline to perform a consistent backup.
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When snapshotting, a snapshot of the volume is created and the backup
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is taken from the snapshot, while the original remains in active use.
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</P
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></DIV
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><DIV
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CLASS="NAVFOOTER"
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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><A
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HREF="evmscreatesnap.html"
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ACCESSKEY="P"
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>Prev</A
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></TD
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>Home</A
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>Next</A
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></TD
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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>Creating snapshots</TD
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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>Up</A
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></TD
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><TD
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WIDTH="33%"
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ALIGN="right"
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VALIGN="top"
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>Creating snapshot objects</TD
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></TR
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></TABLE
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></DIV
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></BODY
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></HTML
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> |