Intel 7xx Servers, 170 Servers, AS/400 RISC Server manual BladeCenter S and JS12 Express

14.5.1.3.2 BladeCenter S and JS12 Express

The IBM i operating system is now supported on a JS12 Express in a BladeCenter S. The system is limited to 12 SAS DASD and the following charts try to characterize the performance we achieved during experiments with the Commercial Performance Workload in the IBM lab. Using a JS22 Express in a BladeCenter H connected to a DS4800, we limited the resources in order to get a comparison to the SAS DASD used in the BladeCenter S.

					BladeCenter S - 12 internal SAS DASD
				BladeCenter H fibre chanbnel attached DS4800 using 12 DDMs
			P6 M25 with 12 internal SAS DASD on the 572C(no cache) and 57B8 (cache) IOAs
	10
	1
(Seconds)	0.1
Time
Response	0.01
	0.001
	0	2000	4000	6000	8000	10000	12000	14000	16000	18000	20000
						Transactions/Minute
	BladeCenter S JS12 12 BladeCenter SAS DASD IBM i operating system miroring 16GB Memory 1.8 Processors i5 .2 VIOS
	BladeCenter H JS22 12 DS4800 DASD RAID1 done on the DS4800 16GB Memory 1.8 Processors i5 .2 VIOS
	M25 572C 12 SAS Dasd Mirrored 16 GB memory 2 processors
	M25 57B8 12 SAS DASD Mirrored 16 GB memory 2 Processors

					BladeCenter S - 12 internal SAS DASD
				BladeCenter H fibre chanbnel attached DS4800 using 12 DDMs
			P6 M25 with 12 internal SAS DASD on the 572C(no cache) and 57B8 (cache) IOAs
Time (Seconds)	0.031
	0.021
Response
Average DASD	0.011
	0.001
	0	500	1000	1500	2000	2500	3000	3500	4000	4500	5000	5500	6000
						ASP Throughput (OP/S)
	BladeCenter S JS12 12 BladeCenter SAS DASD IBM i operating system miroring 16GB Memory 1.8 Processors i5 .2 VIOS
	BladeCenter H JS22 12 DS4800 DASD RAID1 done on the DS4800 16GB Memory 1.8 Processors i5 .2 VIOS
	M25 572C 12 SAS Dasd Mirrored 16 GB memory 2 processors
	M25 57B8 12 SAS DASD Mirrored 16 GB memory 2 Processors

IBM i 6.1 Performance Capabilities Reference - January/April/October 2008
© Copyright IBM Corp. 2008	Chapter 14 DASD Performance	227