Date: Sat, 21 Nov 2009 11:41:11 GMT From: Denis <dynamic-wind@mail.ru> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/140752: HDD power-off procedure is not clean Message-ID: <200911211141.nALBfBGj081013@www.freebsd.org> Resent-Message-ID: <200911211150.nALBo1WP036099@freefall.freebsd.org>
next in thread | raw e-mail | index | archive | help
>Number: 140752 >Category: kern >Synopsis: HDD power-off procedure is not clean >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: change-request >Submitter-Id: current-users >Arrival-Date: Sat Nov 21 11:50:01 UTC 2009 >Closed-Date: >Last-Modified: >Originator: Denis >Release: 7.2-production >Organization: >Environment: Fujitsu-Siemens S6410 laptop Hitachi HTS545016B9A300 SATA HDD (Travelstar 5K500.B family) >Description: After power-down (halt -p) a loud enough "clink" sound is heard from the HDD suggesting it is performing emergency head unload. Such sound is NEVER heard when shutting down WinXP. I am afraid that this causes excessive stress to a modern HDD. The specification for Travelstar 5K500.B at http://www.hitachigst.com/tech/techlib.nsf/techdocs/013B2CE7D7CBD07586257609007A40A3/$file/TS5K500.B_OEMSpecification_EAmodelRev10.pdf declares that emergency head unload count is limited to 20,000. Possibly there is no emergency unload, but the sound is very unpleasant. P.S. my previous HDD died after 1 year of daily use of FreeBSD-6.3 on the same laptop. >How-To-Repeat: >Fix: Could ata driver issue Sleep or Standby command at power-down as recommended in the above document? >Release-Note: >Audit-Trail: >Unformatted:
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200911211141.nALBfBGj081013>