PARISC (PA8800/8900) to Integrity -- Any Sizing/Substitution Rules? (134 Views)
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Honored Contributor
Alzhy
Posts: 4,373
Registered: ‎01-22-2002
Message 1 of 9 (134 Views)

PARISC (PA8800/8900) to Integrity -- Any Sizing/Substitution Rules?

Does HP offer any Server Sizing Tool for Enterprises moving from PA8800/8900 Systems to Integrity? Considering all Storage will Remain the same, all tools, etc.... recompiles of code, native Integrity versions of software used -- Is there a rule of thumb like -- 2.5 PA8800/8900 cores == 1 Itanium Core or something?

We're on the planning stages for a possible migration to Integrity (Montecito/Dual-Core) Systems. We've currently 1 SuperDome and 1 RP8420 with a total of 96 1000Mhz PA8800 processors - and we want to make sure we are head on correct with an Integrity replacement.


The load is mainly Oracle, Cobol & C/C++/JAVA apps with heavy CPU-intensive logic checks plus some graphics (PDF/PS, etc processing)...

Thanks!

Hakuna Matata.
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Geoff Wild
Posts: 7,170
Registered: ‎06-04-2001
Message 2 of 9 (134 Views)

Re: PARISC (PA8800/8900) to Integrity -- Any Sizing/Substitution Rules?

We are in the process of something similar...

Moving from a bunch of rp7410's to 2 rx8640's....

Basically, I think it's like 2 to 1....

First and foremost - buy some cpu's in ICAP - that way you can spin them up if you need them.

For us, the biggest savings will be on Oracle licenses as well as some OE's.

Rgds...Geoff
Proverbs 3:5,6 Trust in the Lord with all your heart and lean not on your own understanding; in all your ways acknowledge him, and he will make all your paths straight.
Honored Contributor
Alzhy
Posts: 4,373
Registered: ‎01-22-2002
Message 3 of 9 (134 Views)

Re: PARISC (PA8800/8900) to Integrity -- Any Sizing/Substitution Rules?

Thanks Geoff.. But the rp7410s sport slower PA8700+ CPUs (750/875Mhz?).... whilst PA8800/8900 are faster...
Hakuna Matata.
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TwoProc
Posts: 2,202
Registered: ‎01-11-1999
Message 4 of 9 (134 Views)

Re: PARISC (PA8800/8900) to Integrity -- Any Sizing/Substitution Rules?

Good question Nelson,

I hope you get answers, as I'll be in the same boat next year...
"[That boy] is about as sharp as a sack of wet mice" - Foghorn Leghorn
Honored Contributor
Tim Nelson
Posts: 3,727
Registered: ‎06-01-2000
Message 5 of 9 (134 Views)

Re: PARISC (PA8800/8900) to Integrity -- Any Sizing/Substitution Rules?

One thing that we have used for inter HP system comparison are the tpc benchmarks. They may not hold water compared to other manufacturers but should compare from HP to HP.

If tpc.org does not have it then your HP vendor should be able to slip you some stats.

Honored Contributor
Sameer_Nirmal
Posts: 2,108
Registered: ‎02-21-2004
Message 6 of 9 (134 Views)

Re: PARISC (PA8800/8900) to Integrity -- Any Sizing/Substitution Rules?

You might want to check out the HP 9000 Evaluation Program white paper available at
http://h71028.www7.hp.com/ERC/downloads/HP_PARISC_Final-jr.pdf
Honored Contributor
Sameer_Nirmal
Posts: 2,108
Registered: ‎02-21-2004
Message 7 of 9 (134 Views)

Re: PARISC (PA8800/8900) to Integrity -- Any Sizing/Substitution Rules?

Honored Contributor
Sameer_Nirmal
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Registered: ‎02-21-2004
Message 8 of 9 (134 Views)

Re: PARISC (PA8800/8900) to Integrity -- Any Sizing/Substitution Rules?

Honored Contributor
Geoff Wild
Posts: 7,170
Registered: ‎06-04-2001
Message 9 of 9 (134 Views)

Re: PARISC (PA8800/8900) to Integrity -- Any Sizing/Substitution Rules?

Nelson,

Here's some info I can share with you from our account rep as we are going through the same process - albeit from 7410's to 8640's.

What are SAPs?

http://www.sap.com/solutions/benchmark/measuring/index.epx

Rgds...Geoff


[quote]
based on the sizing tables it's in the range of about 2.50.
The value however depends some on caching, and also the total number of CPUs in the server, etc, etc.

(I based this on a comparison of SAPs on an rp7410-8 with PA 8700 875 MHz single core chips vs an rx8640 1.6 GHz Itaniumn II dual cores with 8M and also 24M caching.)

Here's the raw data:

rp7410 PA8700 875 MHz 1 CPU = 492 SAPs, 8 CPUs = 3606 SAPs

rx 8640 Itanium II 1.6 GHz 18 M cache 4 cores = 5040 SAPs , 32 cores = 33,940 SAPs
rx 8640 Itanium II 1.6 GHz 24 M cache 4 cores = 5320 SAPs, 32 cores = 35,800 SAPs

So bascially lowest end rx value: 33,940 / 32 = 1060 SAPs per core

highest end rx value: 5320 / 4 = 1330 SAPs per core

Lowest end rp value: 3606/8 =451
Highest end rp value: 492/1 = 492

So ...apples to apples....

Lowest to Lowest: 1060/451 = 2.35

Highest to Highest: 1330/492 = 2.70

Mid range answer about 2.50

[/quote]



Proverbs 3:5,6 Trust in the Lord with all your heart and lean not on your own understanding; in all your ways acknowledge him, and he will make all your paths straight.
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