Re: Best Make of Sata Drive for Linux

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Sat, Jan 1, 2011 at 5:28 PM, John Mellor <john.mellor@xxxxxxxxx> wrote:
> On Sat, 2011-01-01 at 16:43 -0800, suvayu ali wrote:
>> On Sat, Jan 1, 2011 at 3:23 PM, John Mellor <john.mellor@xxxxxxxxx> wrote:
>> > I've got a 1.5TB Western Digital Green drive, and I'm not happy with the
>> > performance of it.  There are also several discussions online about
>> > these drives having an early ageing problem with ext4 filesystems
>> > because of them unloading the heads every 5 seconds and ext4 only
>> > flushing its journal every 30 seconds.
>> >
>>
>> I have 2 1TB WD Black drives and one 300GB Velociraptor they all have
>> been working almost flawlessly. Could you please point me to what kind
>> of symptoms I might see if the above was true for my case?
>>
>> PS: Did you by any chance get the unloading of heads and ext4 flushing
>> its journals interchanged? If not, I don't see how that would be a
>> problem.
>
> No, the problem is that with 30-second journal flushes to a WD green
> drive that unloads every 5 seconds, every time Linux goes to write to
> the disk, the heads have already been unloaded.  Loading them again
> takes a relatively long time, killing the performance.  Also, if you
> look up the green drive specs, they are only good for about 100k
> load/unload operations, or a lot less than 2 months unless you do
> something about it.
>

Thanks John for the explanation and the confirmation that I'm safe. :)

-- 
Suvayu

Open source is the future. It sets us free.
-- 
users mailing list
users@xxxxxxxxxxxxxxxxxxxxxxx
To unsubscribe or change subscription options:
https://admin.fedoraproject.org/mailman/listinfo/users
Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines


[Index of Archives]     [Older Fedora Users]     [Fedora Announce]     [Fedora Package Announce]     [EPEL Announce]     [EPEL Devel]     [Fedora Magazine]     [Fedora Summer Coding]     [Fedora Laptop]     [Fedora Cloud]     [Fedora Advisory Board]     [Fedora Education]     [Fedora Security]     [Fedora Scitech]     [Fedora Robotics]     [Fedora Infrastructure]     [Fedora Websites]     [Anaconda Devel]     [Fedora Devel Java]     [Fedora Desktop]     [Fedora Fonts]     [Fedora Marketing]     [Fedora Management Tools]     [Fedora Mentors]     [Fedora Package Review]     [Fedora R Devel]     [Fedora PHP Devel]     [Kickstart]     [Fedora Music]     [Fedora Packaging]     [Fedora SELinux]     [Fedora Legal]     [Fedora Kernel]     [Fedora OCaml]     [Coolkey]     [Virtualization Tools]     [ET Management Tools]     [Yum Users]     [Yosemite News]     [Gnome Users]     [KDE Users]     [Fedora Art]     [Fedora Docs]     [Fedora Sparc]     [Libvirt Users]     [Fedora ARM]

  Powered by Linux