svn commit: r40755 - head/en_US.ISO8859-1/books/faq

Eitan Adler eadler at
Sat Jan 26 19:35:25 UTC 2013

Author: eadler
Date: Sat Jan 26 19:35:24 2013
New Revision: 40755

  Old ATA devices don't solicit many questions these days.
  Noted by:	rpaulo, imp
  Approved by:	bcr (mentor, implicit)


Modified: head/en_US.ISO8859-1/books/faq/book.xml
--- head/en_US.ISO8859-1/books/faq/book.xml	Sat Jan 26 19:35:22 2013	(r40754)
+++ head/en_US.ISO8859-1/books/faq/book.xml	Sat Jan 26 19:35:24 2013	(r40755)
@@ -2700,41 +2700,6 @@ kern.timecounter.hardware: TSC -> i82
-	<question id="udma-icrc">
-	  <para>What are <errorname>UDMA ICRC</errorname> errors, and
-	    how do I fix them?</para>
-	</question>
-	<answer>
-	  <para>The &man.ata.4; driver reports <errorname>UDMA
-	    ICRC</errorname> errors when a DMA transfer to or from a drive
-	    is corrupted.  The driver will retry the operation a few
-	    times.  Should the retries fail, it will switch from DMA to
-	    the slower PIO mode of communication with the device.</para>
-	  <para>The problem can be caused by many factors, although
-	    perhaps the most common cause is faulty or incorrect
-	    cabling.  Check that the ATA cables are undamaged and rated
-	    for the Ultra DMA mode in use.  If you are using
-	    removable drive trays, they must also be compatible.  Be
-	    sure that all connections are making good contact.  Problems
-	    have also been noticed when an old drive is installed on the
-	    same ATA channel as an Ultra DMA 66 (or faster)
-	    drive.  Lastly, these errors can indicate that the drive is
-	    failing.  Most drive vendors provide testing software for
-	    their drives, so test your drive, and, if necessary, back up
-	    your data and replace it.</para>
-	  <para>The &man.atacontrol.8; utility can be used to show and
-	    select the DMA or PIO modes used for each ATA device.  In
-	    particular, <command>atacontrol mode
-	    <replaceable>channel</replaceable></command> will show the
-	    modes in use on a particular ATA channel, where the primary
-	    channel is numbered 0, and so on.</para>
-	</answer>
-      </qandaentry>
-      <qandaentry>
 	<question id="lock-order-reversal">
 	  <para>What is a <errorname>lock order

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