Been doing this for 15 years
ITGuy04 | 07/18/07
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You've never had a RAID 5 rebuild fail?
R Harris  | 07/19/07
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Umm... Not at this time and Hopefully Never
nucrash | 07/19/07
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You've never had a RAID 5 rebuild fail
RARE_AT_BEST | 10/21/08
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raid 5 failed rebuild
capsteve | 10/21/08
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Your storage system is not large enough
storagelunatic | 10/22/08
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Not only large drives!
w_c_mead | 04/13/09
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Your whole analysis is based on a faulty assumption.
ShadeTree | 07/18/07
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Well you know the saying
voska | 07/18/07
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An unrecoverable read error on rebuild...
bjbrock | 07/18/07
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And if there is a fire in your PC all your data can be destroyed.
ShadeTree | 07/19/07
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There is an old saying
Michael L Hereid Sr | 07/19/07
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data storage does increase at the rate of Moore's law
noglider@... | 07/19/07
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How does that work?
R Harris | 07/19/07
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RAID controllers, sectors, and lists
filker0 | 07/19/07
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How does that work?
storagelunatic | 10/22/08
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Isnt that what disk mainenance is for
pcguy777 | 07/19/07
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Given that Optical Disks have jumped
Species8472 | 07/20/07
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Matching defenses to threats
Yagotta B. Kidding | 07/18/07
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Charming
Yagotta B. Kidding | 07/18/07
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You are correct about 2 URE's
R Harris | 07/19/07
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What ya think of reduced error- rates on flash/RAM SSD's, genius? (Robin)
Reality Incoming | 03/17/09
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Okay..
AzuMao | 08/03/09
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not exactly
stormculture | 07/19/07
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Nothing is "100%" perfect.
Reality Incoming | 03/17/09
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Your URE failure info is per disk...
bjbrock | 07/18/07
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Alternative to RAID 5 (or RAID in general)
Thought1 | 07/18/07
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WHS is junk
ITGuy04 | 07/18/07
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does that mean....
JoeMama_z | 07/18/07
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Does it support other OS's?
ITGuy04 | 07/18/07
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junk would mean it didn't work as advertised....
JoeMama_z | 07/18/07
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does that mean....
aussieblnd@... | 07/19/07
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WHS - corruption
speculatrix | 10/23/08
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Raid 1 (Mirror)
Metawatch | 07/18/07
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One more reason...
bjbrock | 07/18/07
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Something does not compute
Patrick Jones | 07/18/07
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Stats 101
Yagotta B. Kidding | 07/18/07
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I was never good at statistics
Patrick Jones | 07/18/07
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Stats 100
stormculture | 07/19/07
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A statistics short course.
liljim@... | 07/19/07
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Simplify it
standalone.sysadmin | 10/21/08
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do you have 'good' numbers?
Linux Geek | 07/18/07
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About your numbers....
desamuelson | 07/18/07
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error note
sundby@... | 07/18/07
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The solution ...
George Mitchell | 07/18/07
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From the hardware side...
nucrash | 07/18/07
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I'm all for getting more intelligence on the drive side as well ...
George Mitchell | 07/18/07
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Yes, but what are the odds..
nucrash | 07/19/07
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RAM is not secure... The real solution
stormculture | 07/19/07
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Single sector failure != Total drive failure
CobraA1 | 07/18/07
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I guess those ESS's don't exist
nucrash | 07/18/07
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Even after reading this
nucrash | 07/18/07
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We all know that Robin is not a big RAID fan ...
George Mitchell | 07/18/07
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Just a little math correction
Ronbo13 | 07/18/07
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What is going on?
lawryll@... | 07/18/07
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Complete falsehoods
cmdrrickhunter@... | 07/18/07
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Your understanding is at odds with the facts
R Harris | 07/20/07
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Ever hear of datascrubbing
RARE_AT_BEST | 10/21/08
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.
RARE_AT_BEST | 10/21/08
|
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Consistency Checks!
Uber Dweeb | 07/19/07
|
|
Consistency Checks!
javatexan | 10/22/08
|
|
Scaremongering!!
Don Ticulate | 07/19/07
|
|
Jumping off a bridge?
filker0 | 07/19/07
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|
First BOTT, then OU and now YOU?
Old Timer 8080 | 07/19/07
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|
totally agree
Drakaran | 07/19/07
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|
How could I have made it clearer?
R Harris | 07/20/07
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|
My REALITY response
Old Timer 8080 | 07/20/07
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|
Stupidity starts working in 2007
shraven | 07/19/07
|
|
12 Tb? You're kidding right?
Drakaran | 07/19/07
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Can't see anyone using 12TB in next 2 years?
res0792v@... | 07/19/07
|
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One Mistake
DHarris@... | 07/19/07
|
|
Correct.
R Harris | 07/20/07
|
|
Just plain wrong
Greg.Freemyer@... | 07/19/07
|
|
Consider Enterprise Drives!!
Greg.Freemyer@... | 07/22/07
|
|
Correcting some poorly informed comments
Liam Newcombe | 07/19/07
|
|
To add to that
sashkashurik | 07/19/07
|
|
This whole thread is dangerous
bmorgen@... | 07/19/07
|
|
Truth is frequently dangerous
R Harris | 07/20/07
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|
how can this fail?
pcguy777 | 07/19/07
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|
Where did Mr. Harris go?
nucrash | 07/19/07
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I went to bed.
R Harris | 07/20/07
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First Line of Defense
reabd@... | 07/19/07
|
|
Raid never replaced the need for Backup
rstoebe@... | 07/19/07
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|
tapes
ernieoporto@... | 10/21/08
|
|
Why raid may work longer
hski | 07/20/07
|
|
I'm sincerely and seriously not over reacting
intrepi@... | 07/21/07
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Balderdash
Skeptical in Phila | 08/09/07
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|
Not to mention most drives
Lerianis | 04/10/09
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|
Hey, I agree. (You don't see that often in this thread).
Logics | 08/22/07
|
|
Have faith in technology!
fraser_donald | 12/13/07
|
|
Staggering Ignorance
meh130@... | 02/23/08
|
|
RAID6 should last a while
kaufi.at | 03/13/08
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RE: Why RAID 5 stops working in 2009
1djk1 | 07/07/08
|
|
RE: Why RAID 5 stops working in 2009
ZDNET_guest666 | 07/28/08
|
|
RAID 6 math... you have it wrong.
ericjgarland | 10/20/08
|
|
Thanks for a great comment - and . . .
R Harris | 10/22/08
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RE: Why RAID 5 stops working in 2009
ernieoporto@... | 10/21/08
|
|
The writer obviously is looking for shock value
RAIDMAN1234 | 10/21/08
|
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RE: Why RAID 5 stops working in 2009
jch12 | 10/21/08
|
|
How real are UREs anyways?
cmdrrickhunter@... | 10/21/08
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Discs mean time between failure
Lerianis | 04/10/09
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|
High Availability vs. Data Protection
dbisping | 10/21/08
|
|
Scrub your RAID arrays
Mace Moneta | 10/21/08
|
|
RAID needs to be smarter to continue to work
dritchey | 10/21/08
|
|
How about people need to be smarter in order for RAID 5 to work?
RARE_AT_BEST | 10/21/08
|
|
Learn more about modern RAID controllers...
cbreaker | 10/21/08
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EXACTLY!
RARE_AT_BEST | 10/21/08
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|
And then learn about SSDs
pheible | 10/22/08
|
|
People get paid to write this?
RFC3251 | 10/21/08
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RE: Why RAID 5 stops working in 2009
RFC3251 | 10/21/08
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|
URE rates are at block level maybe?
Sandro Tolaini | 10/22/08
|
|
URE rates are at teh BIT level
r_p_m | 10/22/08
|
|
RE: Why RAID 5 stops working in 2009
AriBurton | 10/22/08
|
|
RE: Why RAID 5 stops working in 2009
ffOpiR | 10/22/08
|
|
Actual testing on different R5 implementations?
quux | 10/22/08
|
|
The problem is actually Seagate
seagatesux | 10/22/08
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RE: The problem is actually Seagate
seagatesux | 10/22/08
|
|
Woeful misunderstanding of Raid 6
tom.dean@... | 10/22/08
|
|
Yes! A correct answer, Tom.
metajam | 10/22/08
|
|
No, he doesn't
RFC3251 | 10/22/08
|
|
Hmmm?
tom.dean@... | 10/22/08
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Not you 
RFC3251 | 10/22/08
|
|
The Viability of the (URE) of 10^14 spec is presumptive of drive size.
mrjava66 | 10/22/08
|
|
The calculations are not correct
freeman.sm@... | 10/22/08
|
|
Do you think hardware or software will replace it?
zboyles | 10/22/08
|
|
RE: Why RAID 5 stops working in 2009
Arghtastic | 10/22/08
|
|
Typical Robin
croberts | 10/22/08
|
|
RE: Why RAID 5 stops working in 2009
mvachhar | 10/22/08
|
|
RE: Why RAID 5 stops working in 2009 (circa 1967-68)
El Condor | 10/22/08
|
|
WRONG and MISLEADING:The read error rate is per drive
d7a7z7e7d | 10/22/08
|
|
Error Rate is per drive
fukawi2 | 10/22/08
|
|
Doesn't RAID-6 square the time between failures?
guspaz | 10/23/08
|
|
RE: Why RAID 5 stops working in 2009
docbillnet | 10/23/08
|
|
RE: Why RAID 5 stops working in 2009
waxnet | 10/23/08
|
|
No more whinning, solutions please.
MV_z | 10/24/08
|
|
Raid 0+1 ?
onephatcat@... | 10/24/08
|
|
More than half of the solution
jml5@... | 10/24/08
|
|
RE: Why RAID 5 stops working in 2009
ripfree | 10/24/08
|
|
RE: Why RAID 5 stops working in 2009
maferious | 10/26/08
|
|
Intelligent Controllers and System Admins
ttmcmurry | 10/29/08
|
|
after more thought
ttmcmurry | 11/04/08
|
|
youre talking about different kind of URE
flashcoder | 04/14/09
|
|
Noise level
ashepard@... | 10/31/08
|
|
ZFS is the solution to this.
Orvar | 03/31/09
|
|
Not patentable, so Microsoft is never going to include it
Lerianis | 04/10/09
|
|
ZFS IS the solution to this problem.
Orvar | 05/25/09
|
|
This doesn't sound like a realistic situation
Lerianis | 04/10/09
|
|
Easy fix for hidden URE
flashcoder | 04/14/09
|
|
RE: Why RAID 5 stops working in 2009
murphtron | 05/06/09
|
|
RE: Why RAID 5 stops working in 2009
fabio479 | 05/07/09
|
|
Other potential mitigation methods...
matthew_of_cambridge | 05/08/09
|
|
Increasing the ECC length helps -
Robin Harris | 06/24/09
|
|
RE: Why RAID 5 stops working in 2009
Hatsepsut | 07/11/09
|
|
It's 2009, and it's now clear that you were wrong
sayotte | 07/29/09
|
|
RE: Why RAID 5 stops working in 2009
drkhos | 08/31/09
|
|
RE: Why RAID 5 stops working in 2009
jamiehallan | 11/04/09
|
|
RE: Why RAID 5 stops working in 2009
max@... | 11/12/09
|
|
A loss of the data that failed to be read, yes.
AzuMao | 11/13/09
|
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