Mogens with eloquence. One of the most significant issues with Grid is the ability to transfer entire IT environments to support it. We're talking about = centralization of all resources so that servers, disks, networks, databases, routers, = etc. become "services" that can be utilized at a moments notice. The fact = of reality is that will never occur in most IT environments. The concept sounds good the costs are extremely high. Thank You Stephen P. Karniotis Compuware Corporation Direct: (313) 227-4350 Toll Free: (800) 462-7740 ext. 74350 Mobile: (248) 408-2918 Email: Stephen.Karniotis@xxxxxxxxxxxxx=20 Web: www.compuware.com=20 -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx = [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Mogens N=F8rgaard Sent: Monday, August 16, 2004 4:56 PM To: oracle-l@xxxxxxxxxxxxx Subject: Grid ... Was: Is RAC DOA? Fundamentally, it's always a problem when a lot of bright people don't=20 understand immediately what a vendor means by a certain word. It's either because it's so incredibly revolutionary in its entire=20 concept that the bright people, who usually understand most of what=20 comes out from this vendor, are left by the wayside. Or it's because=20 it's not what the vendor claims it is. So let's say that the Grid idea is completely, utterly revolutionary,=20 and that most of us - for the first time in our Oracle-lives - don't=20 understand it. The amazing thing is that all Oracle-employees seem to=20 understand it (although they all have different ways of explaining what = it is and what it really consists of). This proves that Oracle's=20 employees are way, way smarter (not just smarter) than people not=20 employed by Oracle. I'm not saying this is not the case. I'm just saying it's an amazing=20 fact in itself. I've argued before, that the general feeling inside=20 Oracle is that people outside of its firewalls are not, uhm, the=20 Einsteins of the World. In fact, I've noticed that the second people=20 walk out of Oracle's door to start a new job outside of Oracle, they=20 immediately become rather dim. Something happens in that door, Mladen! The Grid is not a product, it's a concept. Well, that's nice. And I'm=20 sure saying that transportable tablespaces and RAC and various queueing = stuff allows you to construct a grid is true. But it becomes a sort of=20 circular argumentation. I'm pretty sure that just as we see the Oracle=20 RAC folks making fun of OPS today, a couple of years from now some=20 Oracle folks will make fun of the Grid they are telling people to=20 believe in today. You can't buy something called a "grid" from Oracle. You can buy = various=20 technologies from Oracle which allows you to put something together=20 which Oracle will then declare to be "a grid". So the vision is to deliver computing resources like water or=20 electricity is being delivered today, where various producers can=20 supplement each other. I do find fault with this comparison, which in my view is one of the=20 worst over-simplifications ever done by the S&M people of the World. Imagine a world (Planet) where you're told that the current (sorry, = joke=20 un-intended) electricity you're using is out-dated. You will need to go = to the newer version of electricity, which happens to be 342 Volts and=20 42 Amps - and the plugs in your wall will need to be "upgraded" to a = new=20 model with seven different sized and shaped thingies to fit into each = other. Imagine a Planet where you're informed that Water version 1 is not=20 really the future. Instead, Water version 2 will be delivered beginning = of next Summer, and version 1 will no longer be supported. Version 2=20 will require a few changes in your house: First of all, you'd better = get=20 used to the fact, that only hot water will be delivered. No cold water=20 anymore - but we suggest you buy an extra cold-water server for this=20 purpose in case you still require this out-dated service. Second, since = you will no longer need to have special handles for hot and cold water, = it is suggested to change all your appliances to new, more sturdy types = that can take all the hot water (which, by the way, comes with a much=20 higher pressure, so better check the state of your pipes). IT is not like that. One day it might be, but I really cannot imagine=20 how it can be that. Requires much vodka. Shifting resources is not a simple task, and many things have to be=20 considered. I'm sure Oracle is busy finding out how to address a lot of = these mysterious and wonderful possibilities. But it's stretching it a=20 byte and a bit declaring this to be a ready-to-buy thing. When the explanation for something apparently very technical is filled=20 with S&M buzzwords there's a reason. Mogens MacGregor, Ian A. wrote: > I'm a bit confused here. Hereogeneous means of different origin. I thought inside a cluster things had to be the same. They had to be homogeneous; i.e., of the same origin. I also thought the problem with Oracle is that you need to create a single large cluster instead of allowing you to have multiple clusters which can communicate with each other. So with the Orcle grid software, when you learn of hardware = vendor going out of the machine business, and you can buy scores or hundreds = of machines on the cheap. You have to pass. >=20 >=20 > Ian MacGregor > Stanford Linear Accelerator Center > ian@xxxxxxxxxxxxxxxxx >=20 > -----Original Message----- > From: Daniel Fink [mailto:Daniel.Fink@xxxxxxx]=20 > Sent: Monday, August 16, 2004 11:46 AM > To: oracle-l@xxxxxxxxxxxxx > Subject: Re: Is RAC DOA? >=20 > Extend that question into the realm of 'grid' computing. RAC requires = a heterogeneous environment within the cluster. This means that a RAC = cluster is not really grid friendly. It is only able to 'shift' processing requirements within itself and cannot take advantage of that = underutilized server sitting next to it in the data center. I asked this question of = an Oracle employee recently and the response was that RAC does indeed fit = into Oracle's grid strategy, but there are not any plans to enable a = homogenous RAC system. Am I missing something? >=20 > Daniel >=20 >=20 >=20 > Jesse, Rich wrote: >=20 >>I'll add that until <buzzword>hetergeneous clusters</buzzword> are supported, your availability is only good until your next patch = (Oracle, OS, or 3rd party). When you patch one, you most likely need to patch all = at the same time. In the case of Oracle patches, it's mandatory at least thru = 9.2. >>Rich >> >>-----Original Message----- >>Sent: Monday, August 16, 2004 10:48 AM >>Subject: RE: Is RAC DOA? >> >> >>One slight quibble, regarding increased availability. >> >>[snip] >> >>mwf >=20 >=20 > ---------------------------------------------------------------- > Please see the official ORACLE-L FAQ: http://www.orafaq.com > ---------------------------------------------------------------- > To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx put 'unsubscribe' in the subject line. > -- > Archives are at //www.freelists.org/archives/oracle-l/ > FAQ is at //www.freelists.org/help/fom-serve/cache/1.html > ----------------------------------------------------------------- > ---------------------------------------------------------------- > Please see the official ORACLE-L FAQ: http://www.orafaq.com > ---------------------------------------------------------------- > To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx > put 'unsubscribe' in the subject line. > -- > Archives are at //www.freelists.org/archives/oracle-l/ > FAQ is at //www.freelists.org/help/fom-serve/cache/1.html > ----------------------------------------------------------------- >=20 ---------------------------------------------------------------- Please see the official ORACLE-L FAQ: http://www.orafaq.com ---------------------------------------------------------------- To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx put 'unsubscribe' in the subject line. -- Archives are at //www.freelists.org/archives/oracle-l/ FAQ is at //www.freelists.org/help/fom-serve/cache/1.html ----------------------------------------------------------------- The contents of this e-mail are intended for the named addressee only. = It contains information that may be confidential. 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