On Thu, Sep 17, 2009 at 02:09, Xavier <[email protected]> wrote: > On Wed, Sep 16, 2009 at 10:09 PM, Roman Kyrylych > <[email protected]> wrote: >> Hi all! >> >> I wanted to bring this long time ago when I discovered the problem >> with my old Seagate Momentus 5400.3, but then forgot >> since my new WD Scorpio Blue is less affected by this. >> >> But recently I noticed a couple of reports about the issue on forums and IRC, >> so I'm bringing this here. >> >> The problem is that on some HDDs (and/or with some BIOSes?) >> HDD head parking is done too often. >> This can be seen with Load_Cycle_Count in smartctl output >> being increased quickly (more than once per minute), >> and heard as relatively frequent clicks during low IO load. >> More at >> http://ata.wiki.kernel.org/index.php/Known_issues#Drives_which_perform_frequent_head_unloads_under_Linux >> >> Basically, if Load_Cycle_Count divided by Power_On_Hours is more than 30-60 >> and your HDD is powered for many hours every day >> - your HDD may reach the limit in a couple of years. >> >> More info specifically about WD Green HDDs: >> http://kerneltrap.org/mailarchive/linux-kernel/2008/4/10/1396844/thread >> https://lists.ubuntu.com/archives/kernel-bugs/2008-April/035194.html >> (you can find wdidle3 with google, it's not accessible from WD site). >> >> I want to stress that this is _not_specific to WD Green drives. >> >> The problem is easy to fix, but that's if you _know_ about it. >> I think most of users are not aware of it. >> >> Now to the point of this message and why it is on this mailing list. >> What is the best way to handle this? >> >> There is a nice script which automatically tunes HDD options >> to fix this depending on HDD and/or laptop model. >> http://git.kernel.org/?p=linux/kernel/git/tj/storage-fixup.git >> >> Would it be okay if we package it and put it in core & install CD? >> Would it be enough to put this information in Official Install Guide? >> Would it be better to not care that much about this, >> and only mention it in some wiki page plus link in (Post-)Install Guide? >> >> I am really not sure what is the best way here. >> I'd like to hear your feedback on this. >> > > +1 for spreading more the noise about this. > This was the opinion I expressed in this old thread : > http://bbs.archlinux.org/viewtopic.php?id=39258 >
Anyone else has some opinion about how to handle this? -- Roman Kyrylych (Роман Кирилич)
