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Console Operating System and VMkernel
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Loading and Unloading the VMkernel
The VMkernel Loader
The program vmkloader loads or unloads the VMkernel. With no flags, it loads the
VMkernel specified by <vmkernel-binary>. If the VMkernel is already loaded, the
load fails.
If the unload option (-u) is specified, the <vmkernel-binary> argument is
ignored and the VMkernel is unloaded as long as no virtual machines are currently
running on the VMkernel. If there are virtual machines running, then the unload fails. If
the force option is specified (-f), vmkloader unloads the VMkernel even if there is a
virtual machine running.
If you have a SCSI adapter or RAID controller shared between the console operating
system and the virtual machines, you cannot unload the VMkernel.
Options
-f
Unload the VMkernel even if a virtual machine is currently running on it.
-n <num>
Force the VMkernel and all virtual machines to run on only <num> processors, even if
the physical machine has more than <num> processors.
-s
Force the VMkernel and all virtual machines to run on only a single processor, even if
the physical machine is a multiprocessor computer. This is the same as specifying the
option -n 1.
-u
Unload the VMkernel
Example Uses of vmkloader
The following are some example uses of vmkloader.
vmkloader /usr/lib/vmware/vmkernel
loads the VMkernel binary /usr/lib/vmware/vmkernel.
vmkloader -u
unloads the VMkernel if there are no virtual machines running.
vmkloader -uf
unloads the VMkernel even if there are virtual machines running.
- VMware ESX Server 1
- VMware, Inc 2
- 3145 Porter Drive 2
- Palo Alto, CA 94304 2
- Table of Contents 3
- Welcome to VMware ESX Server 13
- What’s New in Version 1.5 15
- System Requirements 17
- Legacy Devices 21
- Technical Support Resources 22
- Installing, Configuring and 25
- Upgrading ESX Server 25
- ESX Server 26
- Before You Begin 28
- Installing VMware ESX Server 28
- Your Server 33
- 7. Click Perform Action 54
- GSX Server Virtual Machines 71
- Preparing to Use the Remote 79
- Management Software 79
- Linux – RPM Installer 81
- Linux – Tar Installer 81
- Remote Console on page 114 82
- Workstation 84
- Using the VMware Management 94
- Interface 94
- Management Interface 99
- Running VMware ESX Server 105
- Management Interface window 105
- Using Disk Modes 108
- Monitoring System Status 109
- Using the Remote Console 114
- VMware Tools Settings 117
- Cutting, Copying and Pasting 119
- Using SNMP with ESX Server 125
- Configuring SNMP Security 132
- Name Data type Description 139
- Backing Up Virtual Machines 140
- Operating Systems 144
- Guest Operating System 147
- Guest Operating Systems 149
- To enable expert mode, 154
- To enable expert mode, … 156
- Service 167
- Console Operating System and 169
- VMkernel 169
- Operating System 171
- The VMkernel Loader 173
- VMkernel Device Modules 174
- Machines 179
- Configuring Virtual Machines 181
- Using VMkernel Devices 182
- Modifying the SMBIOS UUID 187
- Enabling Repeatable Resumes 191
- Authenticating Users 193
- Default Permissions 194
- Using vmkfstools 199
- Naming VMFS File Systems 205
- Determining SCSI Target IDs 208
- Sharing the SCSI Bus 210
- Using Storage Area Networks 212
- Networking 215
- Promiscuous Mode 222
- Sharing Network Adapters and 224
- Virtual Networks 224
- Performance Tuning for Heavy 228
- Network Loads 228
- Resource Management 231
- CPU Resource Management 234
- Multiprocessor Systems 235
- Memory Resource Management 239
- Admission Control 240
- Dynamic Allocation 240
- Memory Reclamation 241
- Memory Sharing 242
- Sizing Memory on the Server 249
- Virtual Machine Memory 250
- Memory Overcommitment 251
- More Information 252
- Network Bandwidth Management 253
- Disk Bandwidth Management 257
- Configuration File Options 258
- Glossary 261
- Appendix A: I/O Adapter 265
- Compatibility Guide 265
- Linux Driver Compatibility 267
- VMware Certification 267
- Adaptec SCSI Adapters 268
- Emulex Fibre Channel Adapters 272
- QLogic Fibre Channel Adapters 272
- Compaq RAID Controllers 272
- Mylex DAC960 RAID Controllers 273
- Intel Gigabit Ethernet NICs 277
- The OpenSSL Toolkit License 280
- License Issues 280
- Original SSLeay License 281
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