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Comparison between rp4440 and rp7410

 
yc_2
Regular Advisor

Comparison between rp4440 and rp7410

Hi,

My company is planning to get new hardware to replace the current N-class system with MCSG. Environment is to run Oracle Financial & RDBMS in 1 st node and Informix RDBMS in 2 nd node with MCSG.

We are looking at rp7410 initially but the sales recommended rp4440. They said that rp4440 (CPU 1GHz) is using latest technology (PA-8800) and rp7410 (CPU 875MHz) is using old technology (PA-8700).

Configuration for rp4440 is:
(1) 2xDual core PA-8800 1GHz CPU (total 4 CPU)
(2) Memory 8GB

Configuration for rp7410 is:
(1) 4xPA-8700 (875MHz) CPU
(2) Memory 8GB

How to go about comparing the two model of servers?


Thanks in advance,
YC
16 REPLIES 16
Naveej.K.A
Honored Contributor

Re: Comparison between rp4440 and rp7410

hi

hope this link would be of some help

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=514369

with best wishes
Naveej
practice makes a man perfect!!!
Hemanth Gurunath Basrur
Honored Contributor

Re: Comparison between rp4440 and rp7410

Joseph Loo
Honored Contributor

Re: Comparison between rp4440 and rp7410

hi,

check out the links for a descripion of the processors, i.e. PA-8800 and PA-8700

http://www.cpus.hp.com/technical_references/parisc.shtml

and also the links others have send you.

regards.
(p.s. dual core, go for it, dude)
what you do not see does not mean you should not believe
Thayanidhi
Honored Contributor

Re: Comparison between rp4440 and rp7410

7410 4440
Both are 8CPU capable
pa8700 (+) pa8800
15PCI slots 6PCI slots
Npar support not supported
Both are 64GB Max
8.5GB/s bandwidth 12.8Gb/s
10U rack space 4U rack space
4 Internal disk 2 Internal disk

check in
www.hp.com/go/hp9000

TT
Attitude (not aptitude) determines altitude.
John Carr_2
Honored Contributor

Re: Comparison between rp4440 and rp7410

YC

I think everyone has explained the differences but my question would be which server is fastest as both appear to be same spec apart from CPU's

my other consideration in choosing which system to purchase would be peformance/cost

hopefully someone can add to this.

:-) John.
yc_2
Regular Advisor

Re: Comparison between rp4440 and rp7410

Thanks everyone.

Wonder why the cost of rp7410 (PA8700+) is much more than rp4440 (PA8800)?

Is there any hidden information that HP doesn't want to disclose?

PS: These questions were asked by my management.


Rgds,
YC
Joseph Loo
Honored Contributor

Re: Comparison between rp4440 and rp7410

hi,

r they offering you 2 cell boards on both the servers? ask them first, as cell boards do cost quite a fair bit, i.e.

(1) rp4440 -> 1xPA8800 and 4GB on each cell board
(2) rp7410 -> 2xPA8700 and 4GB on each cell board

also, i believe each licence, i.e. MirrorUX, Online JFS and OS are charged based on CPUs.

regards.
(p.s. some points for us would be nice)
what you do not see does not mean you should not believe
Anil Kumar_4
Occasional Contributor

Re: Comparison between rp4440 and rp7410

Hi YC,

1. Check/Ask the estimated OLTP/TPC perf of both the systems.

2. Check/Ask the SPEC perf of both the processors PA-8700+ and PA-8800 and compare 1 core to 1 core perf.

2. Check the System, Memory and I/O bandwdith

4. Check # of I/O slots and speed (PCI, PCI-X)etc...

All this will give you the information and data to make a conscious choice as far as perf is concerned.

Then put the price and get the price-to-perf ratio (your internal yardstick)to decide.
"How much are you willing to spend, to get what?" will answer your doubts.

Regards

Anil
Anil Kumar_4
Occasional Contributor

Re: Comparison between rp4440 and rp7410

Hi YC,

Part II :

1. apart from the reqd load today, does the server have enough in-box capability to handle your future load ?

2. Support roadmap for PA-8800 will be better and longer for future upgrades.

3. can you then inbox upgrade to PA-8900 in future (it may not be possible in pa-8700+ servers)

These additonal info should help you further to decide with confidence.

All the best.
Anil
Wim Rombauts
Honored Contributor

Re: Comparison between rp4440 and rp7410

Hi,

It is generally so thatnew technology comes at a better price.

There is a difference in concept between the rp7410 and the rp4440

In the beginning, there was the rp5470 and the rp7410, whereas the rp7410 was in fact twice the rp5470 in one box, with the ability to use hardware partitions and so on. The rp7410 is just bigger and (i think) has more redundancies.

Now the rp5470 has been replaced by the rp4440, but the rp7410 has also been replaced : there is a rp7410-16 server that also contains PA-8800processors.

If you look at performance, 1 rp4440 with 4 dual core PA-8800 processors at 1GHz outperforms an rp7410 with 8 PA-8700 processors by aprox 50%. That's the effect of new technologie. If you onl need 2 processor modules in an rp4440, you are only at 50% of it's capacity. I would certainly go for that. If you expect to need much more CPU power than that, I would go for an rp7410-16.

I had the choice to add a PA-8700+ processor to an rp5470 system and by a small testserver, or by a new rp4440 production server and move the rp5470 to test. I have chosen for the last. It was cheaper after al.
Brian Hackley
Honored Contributor

Re: Comparison between rp4440 and rp7410

YC,

The only think I would worry about is the built-in Gigabit card+scsi interface on the rp7410 A6794-60001 should not be used for high volume of Gigabit network. Its not the best for disk performance either, so I would stay away from that card. The architecture of this card on the rp7410 is the reason. Details at http://www.docs.hp.com/hpux/onlinedocs/2004/rp7410_core_io_perf.pdf
Obtain a PCI Gigabit card instead. Example: A6825A (RJ45) or A6847A (SC fiber) to get near-link speed performance.
The rp4440 does not come with a built-in or combo network card and does not support the A6794-60001 so it does not see this issue. It can used either of the A6825A/A6847A Gigabit cards referenced above.

Hope that helps,
-> Brian Hackley

Ask me about telecommuting!
yc_2
Regular Advisor

Re: Comparison between rp4440 and rp7410

Hi,

For rp4440, it comes with 2 network interface ( refer to http://www.hp.com/products1/servers/rackoptimized/rp4440/specifications.html):

(1) 10/100BT management LAN
(2) 10/100/1000BT LAN

I intend to use (1) for heart bit of MCSG and (2) for standby (secondary or failed over) LAN interface. The production (primary) LAN interface will be a FC network card.

Is there any issue with the above arrangement?

Would appreciate any comment.


Rgds,
YC
Brian Hackley
Honored Contributor

Re: Comparison between rp4440 and rp7410

YC,

My apologies! The rp4440 comes with a 10/100/1000BaseTX lan interface A6825A as the "built in" network card.

The "management" lan is used for the "Console LAN" and is not seen by HP-UX.

You would need to order a second A6825A card for MC/Serviceguard LAN failover.

Best regards,
-> Brian Hackley
Ask me about telecommuting!
Ted Buis
Honored Contributor

Re: Comparison between rp4440 and rp7410

The rp7410 uses cell based technology, and has two cell boards. The rp7410 has almost 2X the I/O slots, but is 10U in the rack versus 4U for the rp4440-8. It can do hard partitioning and the rp4440-8 cannot (ever). At the moment the rp4440-8 is not support with vpars either. If you don't ever plan to partition the systems, then the rp4440-8 is a better buy, if don't need the I/O. The number of I/O slots may not be a factor, particularily with the new combo cards putting dual 2Gbit FC, or 2Gbit FC/GigE, or 2 GigE on a single card. The rp4440-8 uses an Itanium 2 bus, so it has more CPU bandwidth than the rp7410. If you need partitioning, take a look at the rp7420-16 that also uses the pa-8800. The rp7410-8 is basically a two year old product, while the rp4440-8 and rp7420-8 were new as of February of this year.
Mom 6
yc_2
Regular Advisor

Re: Comparison between rp4440 and rp7410

Hi,

Can I use the management LAN interface from the system for Heart-Bit of MCSG?
Brian Hackley
Honored Contributor

Re: Comparison between rp4440 and rp7410

YC,

No, MC/SG cannot use the "mangement LAN". It is not seen by HPUX and is only used for System Console functions.

So you need to order another NIC to run MC/SG heartbeat on a dedicated network.

Hope that helps,
-> Brian
Ask me about telecommuting!