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Re: Metalink and availability

Michael Ebert

2006-05-25

Replies:


87.6 hours downtime per year = 3.65 days per year = 99% uptime = Two 9s.
Four 9s = 99.99% uptime = 53 mins downtime per year.

Dr. Michael Ebert
DB2 & Oracle Database Administrator
aMaDEUS Data Processing
Erding / Munich, Germany





"Jared Still" <jkstill@gmail.com>

Please respond to jkstill@gmail.com

Sent by: oracle-l-bounce@freelists.org
25-05-06 18:33

To
MFontana@verio.net
cc
jeremiah@ora-600.net, "Oracle-L Freelists" <oracle-l@freelists.org>
Subject
Re: Metalink and availability





Four 9's?

That's 87.6 hours of downtime per year.

No particulary something to brag about.

--
Jared Still
Certifiable Oracle DBA and Part Time Perl Evangelist
On 5/23/06, Michael Fontana <MFontana@verio.net> wrote:
Hey, wait a minute.

I just had 4 oracle senior SE's assure me that if I implemented RAC and
Grid
I would have four nines of uptime (or better), and that it was very
easily done.

I guess Oracle doesn't eat it's own dogfood?
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