Re: RAC Experiences
- From: Tim Gorman <tim@xxxxxxxxxxxxx>
- To: <oracle-l@xxxxxxxxxxxxx>
- Date: Tue, 25 May 2004 20:43:22 -0600
It's not just the "feds" who buy E10Ks. I'm working on a 64 CPU E15K
(1.2Ghz UltraSPARC-III) with 184Gb RAM; my project's partition is 36 of
those CPUs and 160Gb of that RAM. The whole thing cost US$3.2m. Storage
(EMC) purchased separately, however.
For the record, for "big 5" consulting companies, the typical ratio of
billing:salary for consultants used to be 6:1 or 7:1. Nowadays, it may have
narrowed a bit, so someone billing at $200/hr is probably making $40-50/hr
of that...
On your question about bad designs for RAC, go back to Mogens's quote of
Tom's comment that "RAC is an amplifier". Think of OPS as an amplifier,
even more so than RAC. What worked for good design with OPS and pinging
continues to hold true for RAC and cache-fusion. Cache-fusion is just
improved pinging -- it'll still ruin your day just as pinging would, in the
same way. Go back to Mr Morle's book and apply his wisdom.
on 5/21/04 6:36 PM, Ryan at ryan.gaffuri@xxxxxxx wrote:
> Its pretty much only the federal government who can afford Sun E10Ks...
> which one is spending my money on this stuff? Those are like $10 million
> each aren't they?
>
> I thought the federal government was moving away from using 'big 5'
> consulting due to the high rates. You can get the same quality people(who
> will typically make higher salaries than the ones at the top 5 anyway...)
> for far less money.
>
> $200/hour? Less than half of that would go to the developer. What a waste of
> money. Which consulting company?
>
> BTW, what are some bad designs for RAC? I have James Morle's book, but all
> his tips are from before Cache Fusion, when Parallel Server had to force
> writes to datafiles so another node can get the block. So you had to
> partition your application.
>> Don Granaman wrote:
>>
>>> BTW: Executive management's preferred "solution" to this was bigger
>>> hardware. Only after getting to a cluster of fully-loaded Sun E10Ks and
> the
>>> biggest Symmetrix that EMC could offer, with still poor performance, did
>>> they *really* push the $200/hour (each) outsourced (USA)
> designer/developers
>>> to change the code - and the way the system worked.
>>>
>>> -Don Granaman
>
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