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Chapter 1VMware vSphere 4 OverviewVMware vSphere 4 is the new major version of VMware’s flagship virtualization platform, VMware Infrastructure 3. A b

10 | CHAPTER 1 VMware VSphere 4 OVerViewdi S t r i b u t e d Po w e r Ma n a g e M e n tVMware DPM enables you to reduce energy consumption in the

infraStructure SerViceS | 11VMware vStorageVMware vStorage includes a number of advanced features to efficiently manage and use storage in virtualized

12 | CHAPTER 1 VMware VSphere 4 OVerViewvStorage VMFS Volume Grow The VMFS Volume Grow capability in vSphere allows you to dynamically expand

infraStructure SerViceS | 13VMw a r e Pa r a V i r t u a l i z e d ScSiEarly versions of ESX supported virtual SCSI adapters that emulated BusLogic

14 | CHAPTER 1 VMware VSphere 4 OVerViewThe performance benefits of the PVSCSI driver are visible for virtual machines issuing more than 2,000 I/O re

infraStructure SerViceS | 15iSCSI support improvements In vSphere 4, VMware has rewritten the entire iSCSI software initiator stack for both sof

16 | CHAPTER 1 VMware VSphere 4 OVerViewVi r t u a l ne t w o r k ad a P t e r SVMware supports three types of virtual network adapters for virtua

infraStructure SerViceS | 17not need any additional networking hardware and are implemented in software based on the configuration you specify. Virtua

18 | CHAPTER 1 VMware VSphere 4 OVerViewBidirectional Traffic ShapingvNetwork Standard Switches allow you to set up traffic shaping for egress or tran

applicatiOn SerViceS | 19stack, such as NetQueue, that can saturate even 10 Gbps links for both transmit and receive-side network I/O. You will also

2 | CHAPTER 1 VMware VSphere 4 OVerViewIn the following sections, we’ll provide a closer look at each type of infrastructure service.VMware vCompute

20 | CHAPTER 1 VMware VSphere 4 OVerViewmove virtual machines off a vSphere server for any scheduled hardware maintenance with-out the need for any

applicatiOn SerViceS | 21VMw a r e St o r a g e VMo t i o nStorage VMotion allows you to migrate virtual machine disks for running virtual machines

22 | CHAPTER 1 VMware VSphere 4 OVerViewVMw a r e hi g h aV a i l a b i l i t yVMware High Availability (HA) extends high availability for any app

applicatiOn SerViceS | 23VMw a r e Fa u l t to l e r a n c eVMware Fault Tolerance (FT) provides zero downtime and zero data loss availability for

24 | CHAPTER 1 VMware VSphere 4 OVerViewSecuritySecurity services help you secure your virtual infrastructure from vulnerabilities. They also enable

applicatiOn SerViceS | 25conjunction with the virtualization layer, they are expected to provide higher levels of security to virtual machines compar

26 | CHAPTER 1 VMware VSphere 4 OVerViewVMw a r e eSX a n d eSXi Sc a l a b i l i t yvSphere 4 extends the scalability of the virtualization platf

ManageMent SerViceS | 27Management ServicesVMware vSphere management services include the tools and interfaces available to virtual infrastructure ad

28 | CHAPTER 1 VMware VSphere 4 OVerViewvSphere Command-Line Interfaces vSphere provides two key command-line interfaces (CLIs) to automate com

ManageMent SerViceS | 29vCenter Server 4 also includes a new inventory search field to simplify locating virtual machines, hosts, data stores, network

infraStructure SerViceS | 3In the next sections, we will discuss each of these vCompute services in detail.VMw a r e eSX a n d eSXiVMware ESX and E

30 | CHAPTER 1 VMware VSphere 4 OVerViewof host compliance checks based on host configuration settings, such as networking, DNS, and NTP settings. In

ManageMent SerViceS | 31Table 1.1: Built-in Cluster Compliance ChecksCluster Requirement Cluster Compliance CheckVMware DRS Validate that VMotion N

32 | CHAPTER 1 VMware VSphere 4 OVerViewany vCenter instance. Note that a user needs to have valid permissions to be able to see a vCenter Server in

ManageMent SerViceS | 33ce n t r a l i z e d li c e n S i n gIn vSphere 4, VMware has redesigned the licensing facility. License reporting and manag

34 | CHAPTER 1 VMware VSphere 4 OVerViewPhysical-to-virtual conversion•uIntelligent placement on the right vSphere host•uYou can find and analyze p

VMware ManageMent SOlutiOnS | 35vSphere Host Update UtilityvSphere also includes the vSphere Host Update Utility to enable you to remotely upgrade ES

36 | CHAPTER 1 VMware VSphere 4 OVerViewVMware vCenter Chargeback to automate tracking and chargeback for the cost of IT •uservices VMware vCenter

VMware ManageMent SOlutiOnS | 37VMware vCenter ChargebackVMware vCenter Chargeback enables you to track how virtual infrastructure is being used by d

38 | CHAPTER 1 VMware VSphere 4 OVerViewimplementation to automate your failover plans. You can also test these workflows completely so that you know

VSphere cOMpatibility guideS | 39vSphere for Midsize and Enterprise BusinessesVMware provides the following vSphere editions for mid-size and enterpr

4 | CHAPTER 1 VMware VSphere 4 OVerViewRecently, AMD and Intel have introduced newer processors that also support memory manage-ment virtualization.

40 | CHAPTER 1 VMware VSphere 4 OVerViewThe systems, storage, and I/O devices compatibility guides list the hardware that’s compatible with various

infraStructure SerViceS | 5physical to machine memory address translations, which used to be maintained inside shadow page tables within ESX. Offloadi

6 | CHAPTER 1 VMware VSphere 4 OVerViewAdvanced Memory ManagementVMware vSphere uses several advanced memory management features to efficiently use t

infraStructure SerViceS | 7You need to be careful when assigning the minimum settings or reservations because they guarantee resources to a virtual m

8 | CHAPTER 1 VMware VSphere 4 OVerViewVirtual machines using virtual hardware version 7 features are not compatible with ESX/NOTE ESXi releases pri

infraStructure SerViceS | 9run on different servers. You can use this to avoid a single point of failure and increase avail-ability for application c