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Determining SCSI Target IDs
In order to assign SCSI drives to a virtual machine, you need to know which controller
the drive is on and what the SCSI target ID of the controller is. This section can help
you determine these values without opening your computer and physically looking at
the SCSI target ID settings on the drives.
On a standard Linux system, or for a VMware Console Operating System that has SCSI
controllers assigned to the console operating system rather than the VMkernel,
information on attached SCSI devices, including SCSI target IDs is available in the boot
log (usually /var/log/messages), or from examining /proc/scsi/scsi.
Information about the SCSI controllers assigned to the VMkernel and about the
devices attached to these controllers is available in the /proc/vmware/scsi
directory once the VMkernel and the VMkernel device module(s) for the SCSI
controller(s) have been loaded.
Each entry in the /proc/vmware/scsi directory corresponds to a SCSI controller
assigned to the VMkernel. For example, assume you issued a vmkload_mod
command with the base name vmhba and a single SCSI controller was found. To
identify the controller, type this command:
ls -l /proc/vmware/scsi
The output of the ls command is:
total 0
dr-xr-xr-x 2 root root 0 Jun 22 12:44 vmhba0
Each SCSI controller's subdirectory contains entries for the SCSI devices on that
controller, numbered by SCSI target ID and LUN (logical unit number). Run cat on
each target ID:LUN pair to get information about the device with that target ID and
LUN. For example, type this command:
cat /proc/vmware/scsi/vmhba0/1:0
The following information is displayed:
Vendor: SEAGATE Model: ST39103LW Rev: 0002
Type: Direct-Access ANSI SCSI revision: 02
Size: 8683 Mbytes
Queue Depth: 28
Partition Info:
Block size: 512
Num Blocks: 17783240
- 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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