6.0
Table Of Contents
- vSphere Command-Line Interface Concepts and Examples
- Contents
- About This Book
- vSphere CLI Command Overviews
- Introduction
- List of Available Host Management Commands
- Targets and Protocols for vCLI Host Management Commands
- Supported Platforms for vCLI Commands
- Commands with an esxcfg Prefix
- ESXCLI Overview
- Connection Options for vCLI Host Management Commands
- Connection Options for DCLI Commands
- vCLI Host Management Commands and Lockdown Mode
- Managing Hosts
- Managing Files
- Managing Storage
- Introduction to Storage
- Examining LUNs
- Detaching Devices and Removing a LUN
- Working with Permanent Device Loss
- Managing Paths
- Managing Path Policies
- Scheduling Queues for Virtual Machine I/O
- Managing NFS/NAS Datastores
- Monitoring and Managing SAN Storage
- Monitoring and Managing Virtual SAN Storage
- Monitoring vSphere Flash Read Cache
- Monitoring and Managing Virtual Volumes
- Migrating Virtual Machines with svmotion
- Configuring FCoE Adapters
- Scanning Storage Adapters
- Retrieving SMART Information
- Managing iSCSI Storage
- iSCSI Storage Overview
- Protecting an iSCSI SAN
- Command Syntax for esxcli iscsi and vicfg-iscsi
- iSCSI Storage Setup with ESXCLI
- iSCSI Storage Setup with vicfg-iscsi
- Listing and Setting iSCSI Options
- Listing and Setting iSCSI Parameters
- Enabling iSCSI Authentication
- Setting Up Ports for iSCSI Multipathing
- Managing iSCSI Sessions
- Managing Third-Party Storage Arrays
- Managing NMP with esxcli storage nmp
- Path Claiming with esxcli storage core claiming
- Managing Claim Rules
- Managing Users
- Managing Virtual Machines
- vmware-cmd Overview
- Listing and Registering Virtual Machines
- Retrieving Virtual Machine Attributes
- Managing Virtual Machine Snapshots with vmware-cmd
- Powering Virtual Machines On and Off
- Connecting and Disconnecting Virtual Devices
- Working with the AnswerVM API
- Forcibly Stopping Virtual Machines with EXCLI
- Managing vSphere Networking
- Introduction to vSphere Networking
- Retrieving Basic Networking Information
- Network Troubleshooting
- Setting Up vSphere Networking with vSphere Standard Switches
- Setting Up Virtual Switches and Associating a Switch with a Network Interface
- Retrieving Information About Virtual Switches
- Adding and Deleting Virtual Switches
- Checking, Adding, and Removing Port Groups
- Managing Uplinks and Port Groups
- Setting the Port Group VLAN ID
- Managing Uplink Adapters
- Adding and Modifying VMkernel Network Interfaces
- Setting Up vSphere Networking with vSphere Distributed Switch
- Managing Standard Networking Services in the vSphere Environment
- Setting the DNS Configuration
- Adding and Starting an NTP Server
- Managing the IP Gateway
- Setting Up IPsec
- Managing the ESXi Firewall
- Monitoring VXLAN
- Monitoring ESXi Hosts
- Index
Getting Started with vSphere Command-Line Interfaces
40 VMware, Inc.
Device Identifiers
Dependingonthetypeofstorage,theESXihostusesdifferentalgorithmsandconventionstogeneratean
identifierforeachstoragedevice.
SCSIINQUIRYidentifiers.ThehostusestheSCSIINQUIRYcommandtoqueryastoragedeviceand
usestheresultingdata,inparticularthePage83information,togenerateauniqueidentifier.SCSI
INQUIRYdeviceidentifiersareuniqueacrossallhosts,persistent,andhaveoneofthefollowingformats:
naa.<number>
t10.<number>
eui.<number>
TheseformatsfollowtheT10committeestandards.SeetheSCSI‐3documentationontheT10committe
WebsiteforinformationonPage83.
Path‐basedidentifier.IfthedevicedoesnotprovidetheinformationonPage83oftheT10committee
SCSI‐3documentation,thehostgeneratesanmpx.<path>name,where<path>representsthefirstpathto
thedevice,forexample,mpx.vmhba1:C0:T1:L3.ThisidentifiercanbeusedinthesamewayastheSCSI
inquiryidentifiers.
Thempx.identifieriscreatedforlocaldevicesontheassumptionthattheirpathnamesareunique.
However,thisidentifierisneitheruniquenorpersistentandcouldchangeaftereveryboot.
Typically,thepathtothedevicehasthefollowingformat:
vmhba<adapter>:C<channel>:T<target>:L<LUN>
vmbh<adapter>isthenameofthestorageadapter.Thenamereferstothephysicaladapteronthe
host,nottheSCSIcontrollerusedbythevirtualmachines.
C<channel>isthestoragechannelnumber.SoftwareiSCSIadaptersanddependenthardware
adaptersusethechannelnumbertoshowmultiplepathstothesametarget.
T<target>isthetargetnumber.Targetnumberingisdeterminedbythehostandmightchangeifthe
mappingsoftargetsthatarevisibletothehostchange.Targetsthataresharedbydifferenthosts
mightnothavethesametargetnumber.
L<LUN>istheLUNnumberthatshowsthepositionoftheLUNwithinthetarget.Thenumberis
providedbythestoragesystem.IfatargethasonlyoneLUN,theLUNnumberisalwayszero(0).
Legacy Identifiers
InadditiontotheSCSIINQUIRYormpxidentifiers,ESXigeneratesanalternativelegacyname,calledVML
name,foreachdevice.UsethedeviceUIDinstead.
Examining LUNs
ALUN(LogicalUnitNumber)isanidentifierforadiskvolumeinastoragearraytarget.
Target and Device Representation
IntheESXicontext,thetermtargetidentifiesasinglestorageunitthatahostcanaccess.Thetermsdeviceand
LUNdescribealogicalvolumethatrepresentsstoragespaceonatarget.ThetermsdeviceandLUNmeana
SCSIvolumepresentedtothehostfromastoragetarget.
Different
storagevendorspresenttheirstoragesystemstoESXihostsindifferentways.Somevendorspresent
asingletargetwithmultipleLUNsonit.Othervendors,especiallyiSCSIvendors,presentmultipletargets
withoneLUNeach.