l i n u x - u s e r s - g r o u p - o f - d a v i s
Next Meeting:
July 7: Social gathering
Next Installfest:
Latest News:
Jun. 14: June LUGOD meeting cancelled
Page last updated:
2007 Apr 10 17:51

The following is an archive of a post made to our 'vox-tech mailing list' by one of its subscribers.

Report this post as spam:

(Enter your email address)
Re: [vox-tech] ECC memory --- is it worth it? (semi-OT)
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [vox-tech] ECC memory --- is it worth it? (semi-OT)

Quoting Bill Broadley (bill@cse.ucdavis.edu):

> My point is that while ECC isn't really necessary to help diagnose bad
> dimms with linux because the behavior of linux makes it readily apparent
> that you have some serious problem.  ECC is necessary to improve uptimes
> if you want to survive the random bit flips which can occur at the
> mentioned 1 bit per GB per month.

You have a small point, but only for trivial values of "survive":  The
lion's share of those bit flips will turn out to be harmless for any of
sundry reasons.  (I'd specualate that some non-zero percentage of
prematurely deceased httpd instances owed to that, for example -- but
those just respawn.)

> So if you have a few GB around, and want to have multi-month uptimes
> without corruptions of data and possibly your filesystem get ECC
> memory.

If that were a concern meriting real-world concern in situations where
the RAM _doesn't_ give unmistakeable signs of defects, my data would have
gone to mush a decade ago.  Frankly, HD defects are a many orders of
magnitude more significant threat.
vox-tech mailing list

LUGOD Group on LinkedIn
Sign up for LUGOD event announcements
Your email address:
LUGOD Group on Facebook
'Like' LUGOD on Facebook:

Hosting provided by:
Sunset Systems
Sunset Systems offers preconfigured Linux systems, remote system administration and custom software development.

LUGOD: Linux Users' Group of Davis
PO Box 2082, Davis, CA 95617
Contact Us

LUGOD is a 501(c)7 non-profit organization
based in Davis, California
and serving the Sacramento area.
"Linux" is a trademark of Linus Torvalds.

Sponsored in part by:
Sunset Systems
Who graciously hosts our website & mailing lists!