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Subject: RE: Google's study about hard drive failure
Date: Fri, 2 Mar 2007 03:58:16 -0700
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Thread-Topic: Google's study about hard drive failure
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From: "Shin Irie" <shin.irie@onstor.com>
To: "dl-cstech" <dl-cstech@onstor.com>

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Another study by Carnegie Mellon University (CMU).

Disk failures in the real world:
What does an MTTF of 1,000,000 hours mean to you?
http://www.cs.cmu.edu/~bianca/fast07.pdf


And, do not miss this great podcast. I got these two articles from this
my favorite podcast. It is really interesting.

Hard Drive Unreliability
Security Now! Podcast
Episode #81
http://www.grc.com/SecurityNow.htm


I think you would like it.


--
Irie



> _____________________________________________=20
> From: 	Shin Irie =20
> Sent:	Friday, March 02, 2007 10:02 AM
> To:	dl-cstech
> Subject:	Google's study about hard drive failure
>=20
> Interesting article from Google, based on the statistics of their
> large data center.
>=20
> Failure Trends in a Large Disk Drive Population
> http://labs.google.com/papers/disk_failures.pdf
>=20
> I think most interesting part is this.
> Surprisingly, we found that temperature and activity levels were much
> less correlated with drive failures than previously reported.
>=20
> --
> Irie
>=20

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<TITLE>RE: Google's study about hard drive failure</TITLE>
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<P><FONT COLOR=3D"#0000FF" SIZE=3D2 FACE=3D"Arial">Another study by =
Carnegie Mellon University (CMU).</FONT>
</P>

<P><I><FONT SIZE=3D2 FACE=3D"Arial">Disk failures in the real =
world:</FONT></I>

<BR><I><FONT SIZE=3D2 FACE=3D"Arial">What does an MTTF of 1,000,000 =
hours mean to you?</FONT></I>

<BR><A HREF=3D"http://www.cs.cmu.edu/~bianca/fast07.pdf"><U><FONT =
COLOR=3D"#0000FF" SIZE=3D2 =
FACE=3D"Arial">http://www.cs.cmu.edu/~bianca/fast07.pdf</FONT></U></A><I>=
</I>
</P>
<BR>

<P><FONT COLOR=3D"#0000FF" SIZE=3D2 FACE=3D"Arial">And, do not miss this =
great podcast. I got these two articles from this my favorite podcast. =
It is really interesting.</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">Hard Drive Unreliability</FONT>

<BR><FONT SIZE=3D2 FACE=3D"Arial">Security Now! Podcast</FONT>

<BR><FONT SIZE=3D2 FACE=3D"Arial">Episode #81</FONT>

<BR><A HREF=3D"http://www.grc.com/SecurityNow.htm"><U><FONT =
COLOR=3D"#0000FF" SIZE=3D2 =
FACE=3D"Arial">http://www.grc.com/SecurityNow.htm</FONT></U></A>
</P>
<BR>

<P><FONT COLOR=3D"#0000FF" SIZE=3D2 FACE=3D"Arial">I think you would =
like it.</FONT>
</P>
<BR>

<P><FONT SIZE=3D2 FACE=3D"Arial">--</FONT>

<BR><FONT SIZE=3D2 FACE=3D"Arial">Irie</FONT>
</P>
<BR>
<BR>

<P><SPAN LANG=3D"en-us"><FONT SIZE=3D2 FACE=3D"MS UI =
Gothic">_____________________________________________ </FONT></SPAN>

<BR><B><SPAN LANG=3D"ja"><FONT SIZE=3D2 FACE=3D"MS UI Gothic">From: =
&nbsp;</FONT></SPAN></B><SPAN LANG=3D"ja"></SPAN><SPAN LANG=3D"en-us"> =
<FONT SIZE=3D1 FACE=3D"Tahoma">Shin Irie&nbsp; </FONT></SPAN>

<BR><B><SPAN LANG=3D"ja"><FONT SIZE=3D2 FACE=3D"MS UI =
Gothic">Sent:&nbsp;&nbsp;</FONT></SPAN></B><SPAN =
LANG=3D"ja"></SPAN><SPAN LANG=3D"en-us"> <FONT SIZE=3D1 =
FACE=3D"Tahoma">Friday, March 02, 2007 10:02 AM</FONT></SPAN>

<BR><B><SPAN LANG=3D"ja"><FONT SIZE=3D2 FACE=3D"MS UI =
Gothic">To:&nbsp;&nbsp;&nbsp;&nbsp;</FONT></SPAN></B><SPAN =
LANG=3D"ja"></SPAN><SPAN LANG=3D"en-us"> <FONT SIZE=3D1 =
FACE=3D"Tahoma">dl-cstech</FONT></SPAN>

<BR><B><SPAN LANG=3D"ja"><FONT SIZE=3D2 FACE=3D"MS UI =
Gothic">Subject:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT></SPAN><=
/B><SPAN LANG=3D"ja"></SPAN><SPAN LANG=3D"en-us"> <FONT SIZE=3D1 =
FACE=3D"Tahoma">Google's study about hard drive failure</FONT></SPAN>
</P>

<P><SPAN LANG=3D"en-us"><FONT SIZE=3D2 FACE=3D"Arial">Interesting =
article from Google, based on the statistics of their large data =
center.</FONT></SPAN>
</P>

<P><SPAN LANG=3D"en-us"><I><FONT SIZE=3D2 FACE=3D"Arial">Failure Trends =
in a Large Disk Drive Population</FONT></I></SPAN>

<BR><SPAN LANG=3D"en-us"></SPAN><A =
HREF=3D"http://labs.google.com/papers/disk_failures.pdf"><SPAN =
LANG=3D"en-us"><U><FONT COLOR=3D"#0000FF" SIZE=3D2 =
FACE=3D"Arial">http://labs.google.com/papers/disk_failures.pdf</FONT></U>=
</SPAN></A><SPAN LANG=3D"en-us"><I></I></SPAN>
</P>

<P><SPAN LANG=3D"en-us"><FONT SIZE=3D2 FACE=3D"Arial">I think most =
interesting part is this.</FONT></SPAN>

<BR><SPAN LANG=3D"en-us"><I><FONT SIZE=3D2 FACE=3D"Arial">Surprisingly, =
we found that temperature and activity levels were much less correlated =
with drive failures than previously reported.</FONT></I></SPAN></P>

<P><SPAN LANG=3D"en-us"><FONT SIZE=3D2 FACE=3D"Arial">--</FONT></SPAN>

<BR><SPAN LANG=3D"en-us"><FONT SIZE=3D2 =
FACE=3D"Arial">Irie</FONT></SPAN>
</P>

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