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From: Bruce Cran <brucec@FreeBSD.org>
Date: Fri, 12 Nov 2010 11:22:59 +0000 (UTC)
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X-FreeBSD-CVS-Branch: RELENG_8
Subject: cvs commit: src/share/man/man4 ada.4 src/sys/cam cam_xpt.c
 src/sys/cam/ata ata_da.c
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brucec      2010-11-12 11:22:59 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_8)
    share/man/man4       ada.4 
    sys/cam              cam_xpt.c 
    sys/cam/ata          ata_da.c 
  Log:
  SVN rev 215173 on 2010-11-12 11:22:59Z by brucec
  
  MFC r214279:
  
  Mostly revert r203420, and add similar functionality into ada(4) since the
  existing code caused problems with some SCSI controllers.
  
  A new sysctl kern.cam.ada.spindown_shutdown has been added that controls
  whether or not to spin-down disks when shutting down.
  Spinning down the disks unloads/parks the heads - this is much better than
  removing power when the disk is still spinning because otherwise an
  Emergency Unload occurs which may cause damage to the actuator.
  
  The FLUSH_CACHE + STANDBY_IMMEDIATE commands are issued following the
  procedure documented in Fujitsu's MHW series product documentation under
  section 1.10.1, "Recommended power-off sequence".
  
  PR:     kern/140752
  Submitted by: olli
  
  Revision    Changes    Path
  1.1.2.5     +3 -0      src/share/man/man4/ada.4
  1.2.2.18    +63 -1     src/sys/cam/ata/ata_da.c
  1.217.2.29  +1 -1      src/sys/cam/cam_xpt.c