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<H1><IMG src="images/l_logdr.gif" height=28
width=28 align=left border=0 NOSAVE> Enabling and disabling read-ahead cache
mode</H1>

<p> <img src="images/hstraid1.gif" width="37" height="32">
  &nbsp;This action is not supported on HostRAID controllers.

<P>Use this action to set the read-ahead cache mode to Enabled or Disabled. If
the read-ahead cache mode is set to Adaptive, you cannot use this action. </P>
<P><B><IMG height=17 src="images/note.gif" width=15> Note:</B> You <B>can
</B>override the Adaptive setting, but not through the HP Storage Manager.
Instead, use the Command Line Interface (CLI) included on the <I>HP Storage Manager Support</I> CD. </P>
<OL>
  <LI>In the <A href="cusegui4.htm">Logical devices view</A>, click<IMG height=20
  src="images/s_logdr1.gif" width=28 align=absBottom>(logical device).<BR>
    <BR>
  <LI>Right-click <B>Configure read cache <img src="images/menuarow.gif" width="46" height="10">
    enabled or disabled.<BR>
    <BR>
    </B>
  <LI>Click <B>Yes</B> to confirm. </LI>
</OL>
<H2>More information</H2>
<UL>
  <LI><A href="cracache.htm">Understanding enabled and disabled read-ahead cache
  mode</A>
  <LI><A href="cadaptiv.htm">Understanding adaptive read-ahead cache mode</A>
  </LI></UL>
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