Date: Sun, 24 Oct 2010 01:18:54 +0000 From: Alexander Best <arundel@freebsd.org> To: Dag-Erling =?iso-8859-15?Q?Sm=F8rgrav?= <des@des.no> Cc: freebsd-hackers@freebsd.org, mav@freebsd.org, Tijl Coosemans <tijl@coosemans.org>, Oliver Fromme <olli@lurza.secnetix.de> Subject: Re: Summary: Re: Spin down HDD after disk sync or before power off Message-ID: <20101024011854.GB78293@freebsd.org> In-Reply-To: <86r5fj7gin.fsf@ds4.des.no> References: <201009161742.24228.tijl@coosemans.org> <201009161619.o8GGJAmv035378@lurza.secnetix.de> <20101018155944.GA12425@freebsd.org> <868w1r92rf.fsf@ds4.des.no> <20101021122110.GA65490@freebsd.org> <86zku77mj6.fsf@ds4.des.no> <20101021130730.GA72290@freebsd.org> <86r5fj7gin.fsf@ds4.des.no>
next in thread | previous in thread | raw e-mail | index | archive | help
On Thu Oct 21 10, Dag-Erling Smørgrav wrote: > Alexander Best <arundel@freebsd.org> writes: > > no need to get upset. you asked where i found the information regarding the > > wear impact of spinning down disks and i gave you the answer. > > I am upset by your claim that "doing spin downs upon reboot might be > even worse than not doing spindowns upon shutdown", because you should > know better, and following your advice could damage people's hardware. well...since currently hdds don't spindown during shutdown the current behavior is in fact damaging hardware. i don't quite understand why this hasn't been fixed yet. the patch is available and known to work. it won't cause any problems with SCSI devices like mav's current implementation, since the spindown code is limited to ATA devices. instead of talking and talking somebody should drop the changes into HEAD! cheers. alex > > DES > -- > Dag-Erling Smørgrav - des@des.no -- a13x
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20101024011854.GB78293>