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XP10000 vs Symmetrix DMX800

Jorge Pons
Trusted Contributor

XP10000 vs Symmetrix DMX800

Hi

anyone have experience about those storage arrays.
I know XP1024 and I think is the better storage system...!

In this case, there will be a Windows Cluster with two hosts Proliant 740 (Xeon 8 way) with SAP and SQL Enterprise 2000, DDBB about 2´5 TB, the use will be 80% secuential.

The most important is PERFORMANCE.

Thanks in advance, Jorge
6 REPLIES
Peter Mattei
Honored Contributor

Re: XP10000 vs Symmetrix DMX800

Your comparison is not really fair :-)
The successor of the XP1024 is the XP12000 and the XP10000 is the successor of the XP128.
The XP10000 is built for customers that are looking for XP12000 availability and features but do not require the same scalability and performance! (240 disks vs. 1152 and 1 ACP vs 4 ACPs)

The XP10000 has one fixed ACP the XP1024 can have up to 4.
Random Cache performance of both is equal but you can expect not more than ¼ random backend performance (less disks, less ACP processors)

Compared to the DMX800 the XP10000 is faster and much more flexible.
The DMX has no features like Cache Partitioning, External Storage, journaled CA (Remote Copy) etc.

But anyway, sustained performance needs an appropriate number of disks. If you want to get high performance number you need to stripe your data across as many disks as possible!

Cheers
Peter
I love storage
Jorge Pons
Trusted Contributor

Re: XP10000 vs Symmetrix DMX800

Thanks Peter!

ok, the comparison is not very good.

I try to see the differences in performance, but I cant find any document about symmetrix where appear data about IOPS, bandwith, etc...

where I find this technical data about Symmetrix?

Thanks, Jorge
Peter Mattei
Honored Contributor

Re: XP10000 vs Symmetrix DMX800

OK, our figures show
DMX 800: 0.9 GB/s or 14000IOPS max
XP10000: 1.3 GB/s or 16000IOPS max

Cheers
Peter
I love storage
Jorge Pons
Trusted Contributor

Re: XP10000 vs Symmetrix DMX800

Hello Peter

Thanks for data.
I have this for XP, but I dont know the same for symmetrix, If you have any data...

Thanks, Jorge

Max Random Performance Cache = 700,000 IOPS

Max Random Cache Hit (single port) = 35,000 IOPS
Max Data Bandwidth = 8.5 GB/s
Max Control Bandwidth = 3.6 GB/s

Vincent Fleming
Honored Contributor

Re: XP10000 vs Symmetrix DMX800

http://www.emc.com/products/systems/symmetrix/symmetrix_DMX800/pdf/DMX800.pdf

DMX800 max data bandwidth: 8-16GB/s
Message bandwidth: 0.6-1.2GB/s

...but they say nothing of IOPS.

Bandwidth is great, but being able to use it is even better.

So, their data bandwidth is the same or more, but their control bandwidth is far less than XP10000.

What really matters is real-world performance. Unfortunately, EMC never has published performance measurements of Symmetrix or DMX. I wonder why? If it's so fast, where's the benchmarks?

Regards,

Vince
No matter where you go, there you are.
Chan 007
Honored Contributor

Re: XP10000 vs Symmetrix DMX800

I am not sure, but many place use SAP with EMC array I think SAP recommends this I suppose.

Check SAP site/EMC for any particalar reason.

Even I prefer XP(HDS) than EMC.

Cheers...007