Re: ASM vs Hardware RAID vs ASM + Hardware RAID
Date: Mon, 7 Dec 2009 16:45:54 -0800
Message-ID: <a9c093440912071645y7e6b4aacv8b7a7ed486000133_at_mail.gmail.com>
Currently the Intel Nehalem is only available in "EP" format - the 2 socket version. The "EX" version that supports 4+ sockets will be coming out early next year. I'd guess after Nehalem-EX is out the DL5x0 lineup will have that processor.
I'd guess a 2 socket Intel Nehalem-EP 5500 would easily satisfy your performance requirements. If you are an HP shop then I'd recommend looking at HP ProLiant DL180 G6. It comes in both a 12LFF or 25SFF drive (large/small form factor) chassis. There is also the DL370 G6 (but thats 4U, not 2U).
Couple differences between the AMD Istanbul 6-core and the Intel Nehalem-EP is that AMD only takes DDR2 memory while Intel takes DDR3 which is faster, but the Istanbul has larger L1/L2/L3 caches. The DDR3 and QPI on the Nehalem are quite fast. I havent done any Oracle benchmarks to compare them but the Nehelam-EP stuff is very fast.
On Mon, Dec 7, 2009 at 2:27 PM, Ray Feighery <rjfeighery_at_gmail.com> wrote:
> On upgrading the server: There does not seem to be a HP DL 580 G6
> model available, or any 4-socket box from HP that has the 5500
> (Nehalem), although there is a 585 G6 with the AMD Opteron™ 8400
> Series processors. Not sure how they measure up. From a pure compute
> point of view, a 2-socket box with quad-core 5500 would still give a
> 2x improvement.
> I hear what you are saying about Sun; we were a Solaris/Sun-only
> company for years, but changed to Linux/HP and never regretted it.
> Maybe it is time to reassess, but I like having only a few vendor
> relationships to manage.
> It's certainly something I will cost.
>
> ASM seems to be generally thought of as a Good Thing. I like the idea
> behind hardware mirroring and ASM striping. Basically, I will need to
> decide on some hardware and then test a few different configurations.
-- Regards, Greg Rahn http://structureddata.org -- http://www.freelists.org/webpage/oracle-lReceived on Mon Dec 07 2009 - 18:45:54 CST