The IBM eServer BladeCenter JS20 - IBM Redbooks

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Application subnet The primary reason you install BladeCenter JS20s is to support applications. Many applications have requirements to communicate with other systems. You use one or more application subnets for this purpose. The primary application subnet is implemented using a VLAN provided by the LAN Switch I/O Modules installed in I/O module bay 1 of each BladeCenter chassis. The same LAN Switch I/O Module is used to support the SoL subnet and VLAN. Where different BladeCenter JS20s participate in different applications and there is a requirement to separate application traffic, you may need to define multiple application subnets and VLANs. Each BladeCenter JS20 is connected to the appropriate application subnet based on the applications that are installed on the blade server. If application communication requirements with other systems are complex, you can install an additional pair of Gigabit Ethernet interfaces on each BladeCenter JS20. You do this using the Gigabit Ethernet Expansion Card in conjunction with compatible I/O modules installed in I/O module bays 3 and 4. 4.1.2 High-performance, low-latency network requirements Distributed memory parallel applications may require the installation of a high-performance, low-latency interconnection network between BladeCenter JS20s. This requirement can be supported through the use of an optional Myrinet network. To install a Myrinet network, you must install a Myrinet Expansion Card on each BladeCenter JS20 that requires connectivity to the high-performance, low-latency interconnection network. You must also install an Optical Pass-Thru I/O Module in I/O module bay 4 of each BladeCenter chassis that contains blade servers equipped with Myrinet Expansion Cards. Then connect the Optical Pass-Thru I/O Module to external Myrinet switches to complete the Myrinet network infrastructure. This is illustrated in Figure 4-2. 58 The IBM Eserver BladeCenter JS20
Blade Server Myrinet Expansion Card Blade Server Myrinet Expansion Card Break-out Cables Blade Server Myrinet Expansion Card ... Optical Pass-Thru Module I/O Module Bay 4 External Myrinet Switch Figure 4-2 Myrinet network infrastructure The Myrinet network infrastructure can be used to support application programming interfaces such as the message passing interface (MPI) that are often used by distributed memory parallel applications. You can define IP addresses for each Myrinet network interface. You can also use the Myrinet network infrastructure to support any application communication based on IP protocols. For example, you can use this capability to support a clustered file system such as IBM General Parallel File System (GPFS). You can define a dedicated IP subnet for use with the Myrinet network infrastructure that is distinct from the other IP subnets that are identified in 4.1.1, “Minimal network requirements” on page 54. 4.1.3 Multiple BladeCenter environments Blade Server Myrinet Expansion Card Blade Server Myrinet Expansion Card Blade Server Myrinet Expansion Card Large configurations of BladeCenter JS20s require the installation of multiple BladeCenter chassis. To support the network requirements identified previously, you need to install external LAN switches to interconnect the BladeCenter chassis with each other. Chapter 4. Planning considerations 59
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The IBM Eserver BladeCenter JS20 Le
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Note: Before using this information
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Chapter 4. Planning considerations
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vi The IBM Eserver BladeCenter JS20
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6-8 Language selection . . . . . .
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x The IBM Eserver BladeCenter JS20
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Trademarks The following terms are
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worked actively with Linux adoption
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xvi The IBM Eserver BladeCenter JS2
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2 The IBM Eserver BladeCenter JS20
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for e-commerce and On Demand Busine
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Page 26 and 27: 2.1 Overview of the BladeCenter inf
Page 28 and 29: Attention: Nonredundant power is no
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Page 32 and 33: Figure 2-4 KVM Management Module Th
Page 34 and 35: 2.1.4 I/O modules You use the keybo
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Page 40 and 41: 2.2 BladeCenter JS20 The BladeCente
Page 42 and 43: 2.2.1 Base features There are two m
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Page 46 and 47: Expansion cards You can install any
Page 48 and 49: 2.3.1 Review of POWER and PowerPC A
Page 50 and 51: In 1993, IBM announced the POWER2 p
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Page 88 and 89: 5.1 Management Module configuration
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Page 96 and 97: 5.3.2 Setting the boot sequence Set
Page 98 and 99: Figure 5-7 Viewing firmware levels
Page 100 and 101: 4. After you download all the PKT f
Page 102 and 103: 5.4.3 BladeCenter JS20 firmware (BI
Page 104 and 105: 1. Download the firmware update pac
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Page 108 and 109: e. Leave the values for User Define
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Page 114 and 115: 6. As soon as you type 8, the Open
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Page 120 and 121: 6.1 Installing Linux Both Red Hat E
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To build your own zImage.initrd, fo
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6.2.1 BOOTP DHCP is an extension to
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6.3.1 Red Hat Kickstart Red Hat pro
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6.3.2 SuSE AutoYaST SLES provides a
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► System Set the general system i
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The syntax for mkzimage_cmdline is
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3. We select the install option and
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7.1 Minimal NIM installation Follow
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4. In the next window (Figure 7-4),
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3. In the Configure NIM Environment
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7.3 Adding machine information With
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3. In the next window (Figure 7-12)
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7.4 Preparing the NIM master With a
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1. On the first panel, select the d
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4. As illustrated in Figure 7-19, w
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8.1 IBM Director IBM Director is a
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8.1.1 Setting up an IBM Director Se
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8. Enter the database connection in
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2. With the sources copied to the h
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As CSM was being developed, the Ext
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This is the interface that will be
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version packaged with CSM. And you
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You can verify what user IDs you co
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► PowerMethod: Should always be b
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The csmsetupyast command uses an XM
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RHEL Red Hat Enterprise Linux RISC
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Online resources ► CSM for Linux:
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How to get IBM Redbooks Help from I
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eth0 62 eth1 62 F Fibre Channel Exp
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T translation lookaside buffer (TLB
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The IBM Eserver BladeCenter JS20 Le
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