It appears you have not yet registered with our community. To register please click here...

 
Go Back [M] > Madshrimps > WebNews
Massive Google hard drive survey Massive Google hard drive survey
FAQ Members List Calendar Search Today's Posts Mark Forums Read


Massive Google hard drive survey
Reply
 
Thread Tools
Old 19th February 2007, 11:07   #1
Madshrimp
 
jmke's Avatar
 
Join Date: May 2002
Location: 7090/Belgium
Posts: 79,021
jmke has disabled reputation
Default Massive Google hard drive survey

Google releases data of their HDD experience:

"One of those we thought was most intriguing was that drives often needed replacement for issues that SMART drive status polling didn't or couldn't determine, and 56% of failed drives did not raise any significant SMART flags (and that's interesting, of course, because SMART exists solely to survey hard drive health); other notable patterns showed that failure rates are indeed definitely correlated to drive manufacturer, model, and age;

http://www.engadget.com/2007/02/18/m...resting-thing/
__________________
jmke is offline   Reply With Quote
Old 19th February 2007, 11:11   #2
Madshrimp
 
jmke's Avatar
 
Join Date: May 2002
Location: 7090/Belgium
Posts: 79,021
jmke has disabled reputation
Default

Quote:
We first look at the correlation between average temperature
during the observation period and failure. Figure
4 shows the distribution of drives with average temperature
in increments of one degree and the corresponding
annualized failure rates. The figure shows that failures
do not increase when the average temperature increases.
In fact, there is a clear trend showing that lower
temperatures are associated with higher failure rates.
Only at very high temperatures is there a slight reversal
of this trend.
interesting data! The colder the HDD, the higher the failure rate, sweet spot for HDD temps seems between 35-40°C; between 15-30°C the failure rate is noticeably higher


Too bad they don't include company names & drive models...
__________________
jmke is offline   Reply With Quote
Old 19th February 2007, 12:04   #3
Rutar
 
Posts: n/a
Default

that pretty much kills the business of harddrive coolers
  Reply With Quote
Old 19th February 2007, 13:13   #4
Madshrimp
 
jmke's Avatar
 
Join Date: May 2002
Location: 7090/Belgium
Posts: 79,021
jmke has disabled reputation
Default

not quite, as without active HDD cooling I see temps between 45-50, which is where the failure rate gets higher in the charts; most HDDs with active cooling are between 30-35... almost perfect
__________________
jmke is offline   Reply With Quote
Old 19th February 2007, 19:18   #5
SuAside
 
Posts: n/a
Default

My hdd's are between 28°c and 34°c with two quiet 92cm fans running at 6V. Cant really put the lower than that (or they wont start)...

As for SMART: indeed, it's not really a good diagnostic tool. I've had 2 defective hdd's lately and both were pronounced in pristine health by SMART.
  Reply With Quote
Old 20th February 2007, 09:48   #6
wutske
 
Posts: n/a
Default

okay, but SMART can't detect everything. It only detects whether your hard disk is wearing out or not. It can't predict a sudden failure.
  Reply With Quote
Old 22nd February 2007, 19:27   #7
SuAside
 
Posts: n/a
Default

Quote:
Originally Posted by HardFreak View Post
okay, but SMART can't detect everything. It only detects whether your hard disk is wearing out or not. It can't predict a sudden failure.
i wasn't talking about sudden failure and i doubt all the google ones were either.
  Reply With Quote
Old 22nd February 2007, 20:50   #8
Member
 
Sidney's Avatar
 
Join Date: Mar 2004
Posts: 15,738
Sidney Freshly Registered
Default

I am in trouble; my Hitachi 160GB SATA is running at 27°C normally and never exceeded 33°C in the last two years. I'd better put a heater there.
__________________
lazyman

Opteron 165 (2) @2.85 1.42 vcore AMD Stock HSF + Chill Vent II
Sidney is offline   Reply With Quote
Old 22nd February 2007, 20:51   #9
wutske
 
Posts: n/a
Default

Quote:
Originally Posted by lazyman View Post
I am in trouble; my Hitachi 160GB SATA is running at 27°C normally and never exceeded 33°C in the last two years. I'd better put a heater there.
You could glue it to your CPU heatsink, keeps the cpu cool and the hdd warm
  Reply With Quote
Old 22nd February 2007, 21:43   #10
Madshrimp
 
jmke's Avatar
 
Join Date: May 2002
Location: 7090/Belgium
Posts: 79,021
jmke has disabled reputation
Default

Quote:
Originally Posted by lazyman View Post
I am in trouble; my Hitachi 160GB SATA is running at 27°C normally and never exceeded 33°C in the last two years. I'd better put a heater there.
no you're not in trouble, averages are just that: averages
__________________
jmke is offline   Reply With Quote
Reply


Similar Threads
Thread Thread Starter Forum Replies Last Post
Samsung hard drive problems with Abit AX8 motherboard Angel Blue01 Hardware/Software Problems, Bugs 1 1st July 2009 10:27
Hitachi working on 4000Gb Hard Drive jmke WebNews 0 15th October 2007 14:03
Seagate Unveils Cheetah® NS - Network Storage Hard Drive jmke WebNews 0 21st June 2007 18:03
Western Digital Releases Its Largest Hard Disk Drive: 400GB jmke WebNews 0 24th July 2005 21:41
Western Digital Answers Customer Call With Entry Into Fast-growing Mobile Hard Drive jmke WebNews 0 6th October 2004 11:10
Seagate Rolls Out 400 GB SATA Drives jmke WebNews 0 15th June 2004 00:31
Q2 2004 Desktop Hard Drive Comparison: WD Raptor vs the World jmke WebNews 0 7th June 2004 19:43
1 TeraByte external hard drive becomes reality jmke WebNews 0 8th April 2004 13:04
Unused space on hard drives recovered jmke WebNews 13 10th March 2004 15:24

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


All times are GMT +1. The time now is 14:56.


Powered by vBulletin® - Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO