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C H A P T E R 1 2 VMware ESX Server Resource Management
387
If the problem is VMkernel swapping, then check and make sure VMware Tools is
installed. Place the swap file in a different physical drive than the virtual disks. You may
also consider adding more physical memory to the server, or possibly migrating some
virtual machines onto another ESX Server.
Improving Slow Performance on Virtual Machines
If slow performance is isolated on just a few virtual machines, then you should first
check their resource utilization before examining the service console.
Note:
Determine if the guest operating system is doing a lot of paging (swapping).
• In a Linux guest operating system, run the vmstat command. For more
information, see the vmstat(8) man page.
• In a Windows guest operating system, open the Control Panel. Double-click
Administrative Tools, then double-click Performance. Check the value for
pages/second.
If a virtual machine is paging a lot, then increase the minimum memory so that
excessive paging is eliminated. If you’re close to the maximum memory size, then also
increase that resource setting.
Optimizing Performance on the Service Console
If the problem is with CPU resources, then increase the CPU minimum of the service
console and see if that solves the problem.
You can also improve performance by not connecting unnecessarily through the
remote console. For example, unless you are performing an action in a virtual
machine, close the remote console. Having a remote console window open, without
any activity, still uses CPU resources in the service console.
To optimize performance, you can use other third-party software, such as Virtual
Network Computing (VNC) viewer or Microsoft Terminal Services to connect to your
virtual machine, without consuming CPU resources in the service console.
- Administration Guide 1
- VMware, Inc 2
- 3145 Porter Drive 2
- Palo Alto, CA 94304 2
- Table of Contents 3
- Introduction to VMware ESX 13
- Virtualization 14
- Virtual machine 1 18
- Virtual machine 2 18
- Physical resources 18
- Service Console 19
- Using VMware ESX Server 21
- Working With ESX Server 25
- Administrator (root user) 26
- VMware Tools 37
- LSI Logic SCSI Adapter 51
- Operating System 53
- Virtual Machines 56
- Exporting Virtual Machines 64
- Preparing to Use the Remote 66
- Management Software 66
- Windows Clients 67
- Linux – RPM Installer 67
- Linux – Tar Installer 67
- Machine’s Power State Changes 69
- Issues to Consider 70
- Configuring Virtual Machines 71
- Modifying the SMBIOS UUID 73
- Interface 79
- Using the Status Monitor 85
- VMware ESX Server 86
- Deleting a Virtual Machine 96
- Using Common Controls 97
- Configuring a Virtual Machine 98
- Using Disk Modes 143
- Disks on page 123 144
- VMware Management Interface 145
- Managing ESX Server Resources 147
- Configuring VMware ESX Server 148
- Management Interface 149
- Logging Out of the VMware 149
- VMware Remote Console 151
- Editing a Virtual Machine’s 153
- Configuration File Directly 153
- Using the VMware Management 155
- Interface File Manager 155
- Machines 160
- Machines Are Registered 165
- Backing Up Virtual Machines 166
- Using the VMware Remote 171
- Using the Remote Console 172
- VMware Tools Settings 176
- Cutting, Copying and Pasting 181
- CHAPTER 5 185
- Console 186
- Managing the Service Console 187
- Finding and Viewing Files 191
- Authenticating Users 199
- Default Permissions 201
- Using Devices With ESX Server 203
- Administering ESX Server 207
- Modifying VMware ESX Server 208
- Updating the Startup Profile 210
- Changing Network Connections 211
- Configuring Physical Adapters 214
- Changing Users and Groups 216
- Configuring Security Settings 221
- Configuring the SNMP Agent 223
- Adapter Bindings 230
- Configuring a Swap File 233
- Changing Advanced Settings 234
- Viewing VMkernel Messages 240
- Viewing Service Console Logs 242
- Seeing How Memory Is Utilized 245
- Options for Virtual Machines 249
- Using SNMP with ESX Server 257
- Running ESX Server 258
- Destinations on page 274 262
- Configuring SNMP 266
- Using VMkernel Device Modules 275
- VMkernel Device Modules 276
- During Bootup 280
- Storage and File Systems 283
- VMFS Volumes 285
- Labelling VMFS Volumes 286
- VMFS Accessibility 286
- Using vmkfstools 288
- -b --blocksize #[gGmMkK] 289
- Advanced vmkfstools Options 292
- ) on the first partition 297
- Accessing Raw SCSI Disks 300
- Determining SCSI Target IDs 303
- Sharing the SCSI Bus 305
- Understanding Storage Arrays 307
- Scanning for Devices and LUNs 308
- Choosing QLogic Adapters 309
- Using Persistent Binding 312
- Specifying Paths 318
- In Case of Failover 319
- Configuration for Clustering 321
- What Is Clustering? 322
- Clustering Hardware 323
- Clustering Virtual Machines 324
- ESX Server Machine 327
- Server Machines 334
- Network Load Balancing 343
- LinuxCluster.scr and load it 351
- Networking 353
- Virtual Machine 354
- CHAPTER 11 Networking 355
- Using MAC Addresses 356
- Specific Speed 359
- Promiscuous Mode 360
- Networks 361
- Using Virtual Switches 365
- Creating a Virtual Switch 366
- Using Beacon Monitoring 368
- Troubleshooting 371
- VMware ESX Server Resource 373
- Management 373
- Improving Performance 378
- CPU Resource Management 380
- Admission Control Policy 381
- Using Hyper-Threading 385
- Managing Virtual Machine CPU 386
- Resources 386
- RUN RUN 265.143 3.105 393
- 02002000 72 124.758 393
- Memory Resource Management 395
- Allocating Memory Dynamically 398
- Using Your NUMA System 410
- Automatic NUMA Optimizations 412
- Manual NUMA Optimizations 412
- Sizing Memory on the Server 416
- Virtual Machine Memory 417
- Memory Sharing 417
- Memory Overcommitment 418
- More Information 419
- Managing Network Bandwidth 420
- Managing Disk Bandwidth 424
- Configuration File Options 425
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