RE: RAC newbie question
Date: Mon, 6 Oct 2008 14:44:14 -0400
From: Andrew Kerber [mailto:andrew.kerber_at_gmail.com] Sent: Monday, October 06, 2008 2:41 PM
To: Terrian, Thomas J Mr CTR DLA J6DIB
Cc: Mercadante, Thomas F (LABOR); oracle-l_at_freelists.org Subject: Re: RAC newbie question
I would not go with a 9 node cluster, applications very often do not scale that well and it would not be at all unknown for a 9 node cluster to actually be slower than a 2 node cluster.
On Mon, Oct 6, 2008 at 1:35 PM, Terrian, Thomas J Mr CTR DLA J6DIB <Tom.Terrian.ctr_at_dla.mil> wrote:
Are these three production databases? YES
Any development or staging to worry about? YES, they are on other
machines on one cluster.
Does any individual database have a higher profile than the others? Not
sure what you are asking.
Does it need to be alone for political/business reasons? Good question,
right now each program manager wants his own cluster. We are looking to
see if it may be better for the organization to just set up one production cluster. Do any of these databases hold a warehouse? Are any a reportingonly
database? NO, OLTP.
-----Original Message----- From: Mercadante, Thomas F (LABOR)
Sent: Monday, October 06, 2008 2:26 PM To: Terrian, Thomas J Mr CTR DLA J6DIB; oracle-l_at_freelists.org Subject: RE: RAC newbie question Tom, Are these three production databases? Any development or staging to worry about? Does any individual database have a higher profile than the others? Does it need to be alone for political/business reasons? Do any of these databases hold a warehouse? Are any a reporting only database? The above in my mind are reasons to separate things a little bit. Being asked these questions now seems like putting the cart before the horse. A plan should have been developed before the arrival of the equipment! LOL!! If your answer's to the above is that all things being equal, all three databases are equal to each other, then I would make one big cluster I think. You could then build it slowly - add one cluster at a time - and learn as you do. Just my 2 cents. I'm sure someone is going to violently disagree with me. Hope this helps. Tom -----Original Message----- From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Terrian,
Thomas J Mr CTR DLA J6DIB Sent: Monday, October 06, 2008 2:10 PM To: oracle-l_at_freelists.org Subject: RAC newbie question I am curious on your thoughts on this.......we have 3 unrelated databases and 9 boxes to put them on. Would you recommend one 9 node cluster and put them on that one or three 3 node clusters (one for each database)? We are looking at the pros/cons of each. Does anyone have any thought either way? -- http://www.freelists.org/webpage/oracle-l -- http://www.freelists.org/webpage/oracle-l
-- Andrew W. Kerber 'If at first you dont succeed, dont take up skydiving.' -- http://www.freelists.org/webpage/oracle-lReceived on Mon Oct 06 2008 - 13:44:14 CDT