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
50 VMware, Inc.
SeeTable 4‐1,“SupportedPathPolicies,”onpage 48.
3 (Optional)IfyouspecifiedtheVMW_PSP_FIXEDpolicy,youmustmakesurethepreferredpathisset
correctly.
aFirstcheckwhichpathisthepreferredpathforadevice.
esxcli <conn_options> storage nmp psp fixed deviceconfig get -d naa.xxxx
bIfnecessary,changethepreferredpath.
esxcli <conn_options> storage nmp psp fixed deviceconfig set --device naa.xxx --path
vmhba3:C0:T5:L3
Thecommandsetsthepreferredpathtovmhba3:C0:T5:L3
Setting Policy Details for Devices that Use Round Robin
ESXihostscanusemultipathingforfailover.Withcertainstoragedevices,ESXihostscanalsouse
multipathingforloadbalancing.Toachievebetterloadbalancingacrosspaths,administratorscanspecifythat
theESXihostshouldswitchpathsundercertaincircumstances.Differentsettableoptionsdeterminewhenthe
ESXihostswitchespathsand
whatpathsarechosen.Onlyalimitednumberofstoragearrayssupportround
robin.
Youcanuseesxcli nmp roundrobintoretrieveandsetroundrobinpathoptionsonadevicecontrolledby
theroundrobinPSP.Specifyoneoftheoptionslistedin“ConnectionOptionsforvCLIHostManagement
Commands”onpage 18
inplaceof<conn_options>.
Novicfg-commandexistsforperformingtheoperations.TheESXCLIcommandsforsettingroundrobin
pathoptionshavechanged.ThecommandssupportedinESXi4.xarenolongersupported.
To view and manipulate round robin path selection settings with ESXCLI
1 RetrievepathselectionsettingsforadevicethatisusingtheroundrobinPSP.
esxcli <conn_options> storage nmp psp roundrobin deviceconfig get --device na.xxx
2Setthepathselection.Youcanspecifywhenthepathshouldchange,andwhetherunoptimizedpaths
shouldbeincluded.
Use--bytesor--iopstospecifywhenthepathshouldchange,asinthefollowingexamples:
esxcli <conn_options> storage nmp psp roundrobin deviceconfig set --type "bytes" -B 12345
--device naa.xxx
Setsthedevicespecifiedby--devicetoswitchtothenextpatheachtime12345byteshavebeensent
alongthecurrentpath.
esxcli <conn_options> storage nmp psp roundrobin deviceconfig set --type=iops --iops
4200 --device naa.xxx
Setsthedevicespecifiedby--devicetoswitchafter4200I/Ooperationshavebeenperformedona
path.
UseuseanotospecifythattheroundrobinPSPshouldincludepathsintheactive,unoptimizedstate
intheroundrobinset(1)orthatthePSPshoulduseactive,unoptimizedpathsonlyifnoactive
optimizedpathsareavailable(0).Ifyoudonotincludethisoption,thePSPincludes
onlyactive
optimizedpathsintheroundrobinpathset.
Scheduling Queues for Virtual Machine I/O
Bydefault,vSphereprovidesamechanismthatcreatesschedulingqueuesforeachvirtualmachinefile.Each
filehasindividualbandwidthcontrols.ThismechanismensuresthattheI/Oforaparticularvirtualmachine
goesintoitsownseparatequeueanddoesnotinterferewiththeI/Oofothervirtualmachines.
Thiscapability
isenabledbydefault.Youcanturnitoffbyusingtheesxcli system settings kernel set
-s isPerFileSchedModelActiveoption
.