Hardware equipment and software environment for the z/VM virtualization tests

To perform our z/VM virtualization performance tests, we needed to create a customer-like environment. We configured the hardware and software for both the client and the server and we configured the Trade workload software.

Server hardware

Host
One LPAR on a 16-way IBM® System z9® Enterprise Class (EC), Model 2094-S18, equipped with:
  • 8 physical CPUs, dedicated
  • 20 GB central memory
  • 2 GB expanded memory
  • OSA Express 2 Ethernet card
  • 2 FICON® Express Channels
  • 5 FCP Channels 2 Gb/sec
  • 1 CEX2C Crypto card
Network setup
  • Web Servers and client workstations on a 1 Gb Ethernet LAN
  • All Linux® guests also used a z/VM® HiperSockets guest LAN, 24 K frame size
Storage server setup
IBM System storage DS8000®, Disk Drive Modules = 73 GB each/15000 RPMs

For the operating system and applications on 15 Linux guest systems:

  • 30 ECKD mod9 spread over one rank/LCU
  • 2 FICON paths
For the database data disks:
  • 5 SCSI disks over 5 FCP channels/ranks. 1 channel per database system. 10 GB each from the same DS8000 as the ECKD disks.

Server software

Table 1. Server software used
Product Version/Level
IBM DB2 Universal Database Enterprise Server 8.2, fixpack 4
IBM HTTP Server 6.0.2.0
SUSE Linux Enterprise Server SLES9, SP3, 64-bit
Trade 6.02
WebSphere® Application Server 6.0.2.1, 31-bit
z/VM 5.2.0
z/VM guests setup:
15 Linux guests
Table 2. z/VM guests setup
Hostname lnweb(1-5) lnwas(1-5) lnudb(1-5)
Function Web Server WebSphere Application Server DB2® UDB Server
Number of virtual CPs 1 2 1
Defined memory 1 GB 2 GB 2 GB
Crypto enabled Yes No No

Client hardware

  • 1 x 2.4 GHz H20 Intel Blade with 4 GB RAM (works as the Trade workload generator)
  • IBM eServer™ xSeries model x335, 2x2.8 GHz, Intel Xeon 2 GB, 72 GB (works as a Trade controller and to gather the Trade statistics from the workload generators)

Client Software

Table 3. Client software Used
Product Version/Level
H20 Intel Blade
Microsoft Windows XP SP2
WebSphere Studio Workload Simulator controller level - PQ76210
xSeries model x335
Red Hat Enterprise Linux RHEL 4 AS (Trade client)
WebSphere Studio Workload Simulator engine level - iwl-0-03309L