Vmware Command Line Management In VSphere 5.0 For Service Console Users ESXI 6.0 V Sphere 5 And 6 Vcenter Server 60 En
User Manual: vmware ESXI - 6.0 - Command-Line Management in vSphere 5 and vSphere 6 for Service Console Users Free User Guide for VMware ESXI Software, Manual
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Technical Note Command-Line Management in vSphere 5 and vSphere 6 for Service Console Users ESXi 6.0 Starting with vSphere 5.0, the service console (also called console OS or COS) with its associated Linux installation is no longer available. If you are currently using ESX service console commands, scripts, agents, or logs, this technical note helps you transition to an off‐host implementation or to use the ESXi Shell in special cases. The focus of this document is on ESXCLI commands and vicfg- commands. Commands in the dCLI command set, available in vSphere 6.0 and later, are initially for managing vCenter services and not for host management. These commands are not discussed in this document. “Introduction” on page 1 “Transitioning Service Console Commands” on page 2 “ESXi Shell Access” on page 5 “Replacing Agents” on page 10 “Logging in vSphere 5 and Later” on page 10 “Retrieving Networking Information” on page 13 “Adding Third‐Party Extensions to Hosts” on page 13 “Reference to Replacements for Service Console Commands” on page 13 IMPORTANT Changes made to the host using the DCUI, the vSphere Client, ESXCLI, or other administrative tools are committed to permanent storage every hour or upon graceful shutdown. Changes might be lost if the host fails before they are committed. Introduction In vSphere 5.x and vSphere 6.x, VMware offers the following tools, CLIs, and APIs that replace ESX 4.x service console components. CLI or Tool Description Availability vCLI Includes ESXCLI commands, vicfgcommands, and a few other commands for managing vSphere. Install a vCLI package on a Windows or Linux system or run commands from vMA. PowerCLI PowerCLI cmdlets for managing ESXi hosts and virtual machines. Install Microsoft PowerShell on a Windows system, and install vSphere PowerCLI to run both PowerShell and PowerCLI cmdlet from the PowerCLI prompt. VMware, Inc. 1 Command-Line Management in vSphere 5 and vSphere 6 for Service Console Users CLI or Tool Description Availability vMA A Linux virtual appliance that includes the vSphere SDK for Perl and the vCLI package. Also supports the vi‐fastpass authentication component. Deploy vMA on an ESXi system and run commands against authenticated target servers from vMA. ESXi Shell commands Set of troubleshooting commands to use when vCLI cannot access your ESXi system. Includes ESXCLI commands and esxcfg- commands (deprecated). The ESXi Shell is disabled by default. You can enable the Shell for local or remote access. Transitioning Service Console Commands If you are currently managing your environment with service console commands, you can perform the same management tasks in vSphere 5.0 and vSphere 5.1 in one of the following ways. Use one of the vSphere Client interfaces. Install vCLI or PowerCLI on a management server, write scripts with those commands, and run the scripts against target hosts. See “Running vCLI or PowerCLI Commands from Remote Hosts” on page 3. For certain troubleshooting and advanced management commands, use commands from the ESXCLI command set directly the ESXi Shell. See “Using the ESXi Shell” on page 5. ESX 4.x Service Console Service console commands vSphere 5.0 and vSphere 5.1 See Off‐host management with vCLI. “Transitioning Service Console Commands” on page 2. “Reference to Replacements for Service Console Commands” on page 13 lists vCLI or ESXCLI replacements for service console commands and points to migration lists in this technical note. Install on Windows or Linux or use vMA. Service console commands Off‐host management with VMware PowerCLI cmdlets from a Windows system. Getting Started with vSphere Command‐Line Interfaces vSphere Command‐Line Interface Solutions and Examples Service console commands On‐host management in the ESXi Shell is possible if system failures or other issues prevent you from using off‐host management commands. See “ESXi Shell Local Access” on page 5 and “Remote Access to ESXi Shell Using SSH” on page 7. ESXi Shell is disabled by default Agents If you run agents in the ESX 4.x service console, you can replace them with infrastructure services in many cases. “Replacing Agents” on page 10. Running third‐party agents in the ESXi Shell is not supported. Linux networking commands. Not available in the ESXi Shell. Use ESXCLI commands instead. See “Retrieving Networking Information” on page 13. Service console logs Fine‐grained control over system logs is available. You can send logs to the local system or to a remote host. “Logging in vSphere 5 and Later” on page 10 Figure 1 illustrates the differences between CLIs in ESXi 4.1 and ESXi 5.0 and later. In ESX 4.1, a fairly large set of service console commands is available. A small set of ESXCLI commands is available in both the service console and as part of the vCLI package. The vCLI package includes, in addition to ESXCLI commands, a set of vicfg- commands and other commands for host management. ESXi 5.0 and later does not include a service console. In the ESXi Shell, you can run a much expanded set of ESXCLI commands and a small set of other commands. The same ESXCLI commands, as well as a few other commands, are included in the vCLI package for off‐host management. VMware, Inc. 2 Command-Line Management in vSphere 5 and vSphere 6 for Service Console Users Figure 1. Command-Line Interfaces in ESX 4.1 and ESXi 5.0 and later Commands running on host vCLI ESX 4.1 Service console commands ESXCLI ESXCLI Commands running on host vicfg-and other commands vCLI ESXi 5 esxcfg(deprecated) POSIX (subset) ESXCLI ESXCLI vicfg-and other commands Using vSphere Client Interfaces Most tasks you perform in the ESX Service Console can be performed by one of the graphical user interfaces to ESXi or vCenter Server systems. The interfaces allow you to manage your infrastructure, and to perform operations on multiple hosts at the same time. Install the vSphere Client on the Windows system of your choice and connect to an ESXi or vCenter Server system. Perform management operations using the client. Use the vSphere Web Client from one of the supported browsers. The vSphere Web Client is a new interface and supports primarily operations on virtual machines. vSphere 5 documentation explains how to perform tasks by using one of the client UIs. Online help is available from both client UIs. Running vCLI or PowerCLI Commands from Remote Hosts If you have scripts that use ESX 4.x service console commands or run commands in the ESX 4.x service console directly, running vCLI commands or PowerCLI cmdlets from the host on which you installed those packages gives the best results. Running off‐host is highly recommended because it facilitates scripting. You can use vCLI even if hosts are in lockdown mode by targeting the vCenterServer system and specifying the target ESXi host with the --vihost parameter, for example: esxcli --server--vihost [ ] storage nfs list If you do not specify additional authentication parameters, the vCLI infrastructure prompts for a username and password for the vCenter Server system specified by --server. vCLI Command Set The vCLI command set includes common system administration commands which you can run against ESXi systems from any machine with network access to those systems. You can also run most vCLI commands against a vCenter Server system and target any ESXi system that vCenter Server system manages. Install the vCLI command set on a supported versions of Windows or Linux. The user running a command against a server must be authenticated for that server. The vCLI package includes several command sets. VMware, Inc. 3 Command-Line Management in vSphere 5 and vSphere 6 for Service Console Users Command Set ESXCLI vCLI commands Description Extensible command framework for managing many aspects of vSphere. Run esxcli --help to see all top-level namespaces. You can run --help at any level of the hierarchy. The esxcli command set in the ESXi Shell and the esxcli vCLI command set support the same functionality. When running vCLI commands, you must specify the target server and authentication options. vicfg- (esxcfg-) vCLI commands Set of commands for managing many aspects of vSphere. For each vicfg- vCLI command, the package includes an esxcfg- vCLI command that is equivalent of the vicfg- vCLI command. Important: esxcfg- vCLI commands are not always equivalent to corresponding esxcfgservice console or ESXi Shell commands. vicfg- commands will be deprecated in future releases. Use esxcli commands instead where possible. Management commands A small set of management commands is available. Commands include vifs for file migration, vmware-cmd for managing virtual machines, and vmkfstools for VMFS file management. The following documentation helps you work with vCLI commands. Getting Started with vSphere Command‐Line Interfaces gives overviews of available commands and includes instructions for installing vCLI on Widows or Linux and detailed information about connection options. vSphere Command‐Line Interface Concepts and Examples presents usage examples for many commands, such as setting up software and hardware iSCSI, adding virtual switches, setting up Active Directory authentication, and so on. The document includes the same example with the vicfg- command and the ESXCLI command where supported. vSphere Command‐Line Interface Reference is a reference to both vicfg- commands and ESXCLI commands. The vicfg- command help is generated from the POD available for each command, run pod2html for any vicfg- command to generate individual HTML files interactively. The ESXCLI reference information is generated from the ESXCLI help. Running ESXCLI Commands Against ESXi 4.x Hosts When you run an ESXCLI vCLI command, you must know the commands supported on the target host specified with --server or as a vMA target. If you run commands against ESXi 4.x hosts, ESXCLI 4.x commands are supported. If you run commands against ESXi 5.0 hosts, ESXCLI 5.0 commands and most ESXCLI 5.1 commands are supported. Commands that are new in ESXCLI 5.1 are not supported. If you run commands against ESX 5.1 hosts, ESXCLI 5.0 commands and all ESXCLI 5.1 commands are supported. VMware partners might develop custom ESXCLI commands that you can run on hosts where the partner VIB has been installed. Run esxcli --server --help for a list of namespaces supported on the target. You can drill down into the namespaces for additional help. IMPORTANT ESXCLI on ESX 4.x hosts does not support targeting a vCenter Server system. You can therefore not run commands with --server pointing to a vCenter Server system even if you install vCLI 5.0 or vCLI 5.1. PowerCLI Cmdlet Set VMware offers a comprehensive set of PowerCLI cmdlets. You can install the PowerCLI package on a Windows system on which Microsoft PowerShell is installed and use PowerCLI cmdlets to manage hosts and virtual machines. PowerCLI cmdlets and vCLI commands overlap in functionality. The PowerCLI focus is on virtual machine management. The vCLI focus is on host management. See the vSphere PowerCLI documentation set, available in the VMware Administration Automation Products section of http://www.vmware.com/support/pubs. VMware, Inc. 4 Command-Line Management in vSphere 5 and vSphere 6 for Service Console Users Using the ESXi Shell Each ESXi host includes an ESXi Shell, which is disabled by default. Administrators can use that shell to perform troubleshooting and advanced tasks such as testing scripts in non production environments. You can access the shell as follows: Enable local access and use the local shell on the physical console or using a serial port. See “ESXi Shell Local Access” on page 5. Enable SSH access and use the shell over a management network with SSH. See “ESXi Shell Access” on page 5. IMPORTANT ESXi Shell is intended for experienced CLI users. Minor errors in the shell can result in serious problems. Instead of running commands directly in the ESXi Shell, use vCLI commands or PowerCLI cmdlets. The ESXi Shell includes the following command sets. Command Set ESXCLI commands Description Extensible command framework for managing many aspects of vSphere. Run esxcli --help to see all top-level namespaces. You can run --help at any level of the hierarchy. The esxcli command set in the ESXi Shell and the esxcli vCLI command set support the same functionality. When running vCLI commands, you must specify the target server and authentication options. esxcfg- commands (deprecated) Set of commands for managing many aspects of vSphere. Most esxcfg- commands available in the ESX 4.x service console are available in the ESXi Shell but are deprecated in ESXi 5.0 and will be removed in a future release. Use ESXCLI commands instead of esxcfg- commands. If no ESXCLI command exists, use the vicfg- commands in the vCLI command set. Other commands A small set of POSIX-style commands is included in the shell (see “Shell Commands” on page 9). These commands are not supported by VMware but are included for use in troubleshooting situations. Use the vSphere Client or VMware commands instead where possible. localcli commands Set of troubleshooting commands for use with VMware Technical Support. localcli commands equivalent to ESXCLI commands but bypass the host daemon (hostd). Warning: localcli commands are only for situations when hostd is unavailable and cannot be restarted. After you run a localcli command, you must restart hostd. Using localcli commands in other situations is not supported. An inconsistent system state and potential failure can result. ESXi Shell Access An ESXi system includes a direct console that allows you to start and stop the system and to perform a limited set of maintenance and troubleshooting tasks. The direct console includes the ESXi Shell. The ESXi Shell includes a set of fully supported ESXCLI commands and a set of commands for troubleshooting and remediation. You must enable access to the ESXi Shell from the direct console of each system. You can enable access to the local ESXi Shell or access to the ESXi Shell with SSH. NOTE For security reasons, you should enable ESXi Shell only when required. ESXi Shell Local Access The ESXi Shell is disabled by default. You can enable the ESXi Shell for troubleshooting from the direct console. All ESXCLI commands that are available in the ESXi Shell are also included in the vCLI package. Install the vCLI package or deploy the vMA virtual appliance, and run commands against your ESXi hosts, instead of running commands in the ESXi Shell itself. See Getting Started with vSphere Command‐Line Interfaces. VMware, Inc. 5 Command-Line Management in vSphere 5 and vSphere 6 for Service Console Users Enabling the ESXi Shell You can enable the ESXi Shell from the direct console and from the vSphere Client. Enabling the ESXi Shell means making it accessible as a local console available directly or over an out-of-band network. To enable the ESXi Shell from the Direct Console 1 Access the direct console of the ESXi host, press F2, and provide credentials when prompted. 2 Scroll to Troubleshooting Options, and press Enter. 3 Select Enable ESXi Shell and press Enter. On the left, Enable ESXi Shell changes to Disable ESXi Shell. On the right, ESXi Shell is Disabled changes to ESXi Shell is Enabled. 4 5 (Optional) Configure the time-out for the ESXi Shell a Select Modify ESXi Shell timeout and press Enter. b Enter the time-out value in minutes and press Enter. Press Esc until you return to the main direct console screen. You can enable the ESXi Shell from the vSphere Client. To enable the local or remote ESXi Shell from the vSphere Client 1 Select the host, click the Configuration tab, and click Security Profile in the Software panel. 2 In the Services section, click Properties. 3 Select ESXi Shell and click Options. 4 Change the ESXi Shell options. 5 To temporarily start or stop the service, click the Start or Stop button. To enable access permanently, click Start and stop with host. The change will take effect the next time you reboot the host. Click OK. After you have enabled the ESXi Shell, you can use it from that monitor or through an out-of-band network connection. To enable to local or remote ESXi Shell from the vSphere Web Client 1 Select the host, click the Manage tab, and click Settings. 2 Under System, select Security Profile. 3 In the Services panel, click Edit. 4 Select a service from the list. 5 ESXi Shell SSH Direct Console UI Click Service Details and select the startup policy Start and stop manually. When you select Start and stop manually, the service does not start when you reboot the host. If you want the service to start when you reboot the host, select Start and stop with host. 6 Select Start to enable the service. 7 Click OK. After you have enabled the ESXi Shell, you can use it from that monitor or through an out-of-band network connection. VMware, Inc. 6 Command-Line Management in vSphere 5 and vSphere 6 for Service Console Users Setting Timeouts for the ESXi Shell The ESXi Shell supports availability timeout and idle timeouts. By default, each timeout is disabled. Availability timeout. The amount of time that can elapse before you must log in after the ESXi Shell is enabled. After the timeout period, the service is disabled and users are not allowed to log in. Idle timeout. The amount of time that can elapse before the user is logged out of an idle interactive sessions. Changes to the idle timeout apply the next time a user logs in to the ESXi Shell and do not affect existing sessions. To set ESXi Shell timeouts from the Direct Console 1 From the Troubleshooting Mode Options menu, select Modify ESXi Shell and SSH timeouts and press Enter. 2 Enter the availability timeout and press Enter. 3 Enter the idle timeout and press Enter. 4 Press Esc until you return to the main menu of the Direct Console Interface. To set ESXi Shell timeouts from the vSphere Web Client 1 Select the host in the inventory, click the Manage tab, and click Settings. 2 Under System, select Advanced System Settings. 3 In the left panel, click UserVars. 4 Select UserVars.ESXiShellTimeOut and click the Edit icon 5 Enter the availability timeout in minutes. You must restart the SSH service and the ESXi Shell service for the timeout to take effect. 6 Select UserVars.ESXiShellInteractiveTimeOut and click the Edit icon 7 Enter the availability timeout in minutes. You must restart the SSH service and the ESXi Shell service for the timeout to take effect. 8 Click OK. Accessing the ESXi Shell with the Direct Console After you enable ESXi Shell access, you can access the local shell. To access the local ESXi Shell 1 At the main direct console screen, press Alt-F1 to open a virtual console window to the host. 2 Provide credentials when prompted. When you type the password, characters are not displayed on the console. 3 To log out, type exit in the shell. 4 To return to the direct console, press Alt-F2. Remote Access to ESXi Shell Using SSH If Secure Shell is enabled for the ESXi Shell, you can run shell commands by using a Secure Shell client such as SSH or PuTTY. Enabling SSH for the ESXi Shell By default, you cannot access the ESXi Shell using a Secure Shell client. You can enable SSH access from the direct console. VMware, Inc. 7 Command-Line Management in vSphere 5 and vSphere 6 for Service Console Users To enable SSH access in the direct console 1 At the direct console of the ESXi host, press F2 and provide credentials when prompted. 2 Scroll to Troubleshooting Options, and press Enter. 3 Select Enable SSH and press Enter once. On the left, Enable SSH changes to Disable SSH. On the right, SSH is Disabled changes to SSH is Enabled. 4 Press Esc until you return to the main direct console screen. You can enable remote command execution from the vSphere Client. To enable SSH from the vSphere Client 1 Select the host and click the Configuration tab. 2 Click Security Profile in the Software panel. 3 In the Services section, click Properties. 4 Select SSH and click Options. 5 Change the SSH options. 6 To temporarily start or stop the service, click the Start or Stop button. To enable SSH permanently, click Start and stop with host. The change takes effect the next time you reboot the host. Click OK. After you have enabled SSH, you can use an SSH client to log in to the ESXi Shell and run ESXi Shell commands. Accessing the ESXi Shell with SSH If SSH is enabled on your ESXi host, you can use an SSH client to run commands on that shell. To access the ESXi Shell with SSH 1 Open an SSH client. 2 Specify the IP address or domain name of the ESXi host. Precise directions vary depending on the SSH client you use. See vendor documentation and support. 3 Provide credentials when prompted. ESXi Shell Commands The ESXi Shell includes several sets of commands. Table 1. ESXi Shell Commands Command Set Description ESXCLI commands A large set of new ESXCLI commands supports many administrative tasks. The commands are fully supported and tested by VMware and include command-line help. See Getting Started with vSphere Command‐Line Interfaces. esxcfg- commands The esxcfg- commands available in the service console are deprecated. The commands will be removed from the ESXi Shell in a future release. See “Reference to Replacements for Service Console Commands” on page 13. VMware, Inc. 8 Command-Line Management in vSphere 5 and vSphere 6 for Service Console Users Table 1. ESXi Shell Commands (Continued) Command Set Description POSIX-like commands See “Shell Commands” on page 9. localcli commands Set of troubleshooting commands for use with VMware Technical Support. localcli commands are equivalent to ESXCLI commands but bypass the host daemon (hostd). Warning: localcli commands are only for situations when hostd is unavailable and cannot be restarted. After you run a localcli command, you must restart hostd. Using localcli commands in other situations is not supported. An inconsistent system state and potential failure can result. ESXCLI Commands The ESXi Shell in ESXi 5 includes a large set of new ESXCLI namespaces and commands. The complete ESXCLI command set is also part of the vCLI package. The ESXCLI command syntax in ESXi 5 is more flexible than the syntax in ESXi 4 and supports multiple namespaces. esxcli [dispatch_option] [namespace, ...] [cmd_options] Each command can use an arbitrary number of namespaces, and different commands have a different number of elements. All commands have also been reviewed for consistency and most commands have been renamed. For example: Each get command returns single values. esxcli hardware memory get The list commands are used for multiple return values. esxcli hardware cpu list Many commands have options. Use an equal sign or a space between the option and the option value. esxcli storage nfs add --host= --share= --volume= esxcli storage nfs add --host --share --volume IMPORTANT For a complete list of ESXCLI commands, see the vSphere Command‐Line Interface Reference. The vSphere Command‐Line Interface Concepts and Examples document illustrates how to perform common tasks with ESXCLI or vicfg- commands. Shell Commands In contrast to VMware ESX, VMware ESXi does not include a console OS with a large set of shell commands and other software. However, a small set of shell commands is available in the ESXi Shell. IMPORTANT The commands are not tested or supported by VMware. Use VMware commands such as ESXCLI, vicfg- commands, and so on, instead. You can see a list of commands in /usr/bin. When you list the commands with ls -al, notice that several of the utilities are redirected to commands appropriate in the vSphere environment. The following commands produce different results than typical shell commands. Several commands are redirected to vmkvsitools. IMPORTANT vmkvsitools is intended for use with VMware Technical Support. Do not use vmkvsitools to manage your system. Ping commands are redirected to vmkping. Some additional commands are available in the ESXi Shell for certain troubleshooting tasks. Use these commands when instructed by a VMware Knowledge Base article or VMware Technical Support staff. User management commands are deprecated. Go to /usr/bin and run ls -a to see a complete list. VMware, Inc. 9 Command-Line Management in vSphere 5 and vSphere 6 for Service Console Users Replacing Agents With ESX 4.x, management agents and hardware monitoring and management agents run in the service console. With ESXi 5, agents are implemented in other ways. Management agents. VMware partners create management agents by using one of the vSphere APIs. Hardware agents. Developers use CIM (Common Information Model) agents. CIM is a standards-based approach to monitoring hardware resources. CIM output is readable by third-party management tools. The VMkernel can include both VMware CIM providers and Partner CIM providers. Use a vSphere Client logged in to a vCenter Server system to view hardware information including alarms. Use the vSphere Client extension framework or the vSphere CIM SDK for customization. Infrastructure service agents. Administrators can use agents available in the ESXi Shell. Agents include hostd (host daemon), vpxa, NTP, syslog, SNMP, and so on. Use the vSphere SDK, vCLI commands, or ESXCLI commands to manage the agents. Table 2. Infrastructure Services for Production Environments Function ESX ESXi Management Time synchronization NTP agent in service console Built-in NTP service vicfg-ntp command Centralized log collection Syslog agent in service console Built-in Syslog service esxcli system syslog commands vSphere Client SNMP monitoring SNMP agent in service console Built-in SNMP service esxcli system snmp command Local access authentication Active Directory (AD) agent in service console Built in Active Directory service Built-in Active Directory service vSphere Client vicfg-authconfig vCLI command. Logging in vSphere 5 and Later Logging in vSphere 5 has been significantly enhanced. You now have fine-grained control over system logs, the location where logs are sent, and, for each log, default size and rotation policy. You can set up logging with the vSphere Client or with the esxcli system syslog command. You can also set up logging behavior for a host by using the Host Profiles interface in the vSphere Client and can then import that host profile into other hosts. Remote Logging Setup in ESXi You can move most ESXi logging information off the host. Collecting data to a central location is especially useful for hosts provisioned with Auto Deploy. You can perform these tasks: Set up NTP on the ESXi hosts you are monitoring and on the systems that host the logging services or store the logs. You can use the vSphere Client or the vicfg-ntp vCLI command to set up NTP. Configure syslog to save logs to a remote host. You can send logs to a specific directory, and configure subloggers. See “Using ESXCLI for Syslog Configuration” on page 10. vCenter Server and ESXi have SNMP agents. You can set up the vCenter Server SNMP agent with the vSphere Client. You can set up the ESXi SNMP agent with the vSphere Client or the esxcli system snmp commands. See vSphere Command‐Line Interface Solutions and Examples. Listen for CIM indications. Using ESXCLI for Syslog Configuration The esxcli system syslog command allows you to configure the logging behavior of your ESXi system. You can perform the same customizations with the vSphere client, as discussed in the vCenter Server and Host Management documentation. The command has the following options: VMware, Inc. 10 Command-Line Management in vSphere 5 and vSphere 6 for Service Console Users Table 3. esxcli syslog Options Option Description mark Mark all logs with the specified string. reload Reload the configuration and update any configuration values that have changed. config get Retrieve the current configuration. config set Set the configuration. Use one of the following options. --logdir= – Save logs to a given path. --loghost= – Send logs to a given host (see discussion on loghost format below) --logdir-unique= – Specify whether the log should go to a unique subdirectory of the directory specified in logdir. --default-rotate= – Default number of log rotations to keep --default-size= – Size before rotating logs, in kilobytes. config logger list Show currently configured sub-loggers. config logger set Set configuration options for a specific sublogger. Use one of the following options: --id= – ID of the logger to configure (required) --reset= – Reset values to default --rotate= – Number of rotated logs to keep for a specific logger (requires --id) --size= – Set size of logs before rotation for a specific logger, in kilobytes (requires --id) esxcli system syslog Examples The following workflow illustrates how you might use esxcli system syslog for log configuration. 1 Show configuration options. esxcli system syslog config get Default Rotation Size: 1024 Default Rotations: 8 Log Output: /scratch/log Logto Unique Subdirectory: false Remote Host: 2 Set all logs to keep twenty versions, then start overwriting the oldest log. esxcli system syslog config set --default-rotate=20 3 Set the rotation policy for VMkernel logs to 10 rotations, rotating at 2MB. esxcli system syslog config logger --id=vmkernel --size=2048 --rotate=10 4 Send logs to remote host myhost.mycompany.com. The logs will use the default UDP port, 514. esxcli system syslog config set --loghost='myhost.mycompany.com' 5 Send logs /scratch/mylogs on the remote host myhost.mycompany.com using TCP/IP port 1514. esxcli system syslog config set --loghost='tcp://myhost.mycompany.com:1514' --logdir='/scratch/mylogs' 6 Send a log message into all logs simultaneously. esxcli system syslog mark --message="this is a message!" 7 Reload the syslog daemon and apply configuration changes. esxcli system syslog reload Viewing Logs in the ESXi Shell In the ESX 4.x shell, the location for logs is /var/log. In the ESXi Shell, you can also find all current logs in the /var/log directory. Some of the logs are symbolic links to the /var/run/log directory. VMware, Inc. 11 Command-Line Management in vSphere 5 and vSphere 6 for Service Console Users Most logs are at top level and not inside a directory under /var/run/log. Available logs depend on which plugins are installed and what other changes might have been made to the system. The following table lists some frequently used logs in the ESXi Shell. ESX 4.x shell ESXi 5.x shell Description /var/log/vmware/hostd.log /var/log/hostd.log Log for the host daemon. /var/log/vmkwarning /var/log/vmkwarning.log /var/log/vmksummary /var/log/vmksummary.log /var/log/messages /var/log/vmkernel.log VMkernel warnings and VMkernel events. /var/log/vmware/vpx/vpxa.log /var/log/vpxa.log vCenter Server agent log. Core Dump Setup for ESXi A core dump can be used to determine the reason for system failure. With ESX, the core dump was placed on the local disk in many cases. With ESXi, you have two options for managing core dumps. Create a diagnostic partition on SAN storage. Each host must have a diagnostic partition of 100MB. If multiple hosts share a SAN, configure a diagnostic partition with 100MB for each host. Install and configure ESXi Dump Collector. New in ESXi, the Dump Collector service allows you to send core dumps to a network server. ESXi Dump Collector is especially useful for determining reasons for failure of ESXi hosts provisioned with Auto Deploy. You can use esxcli system coredump to configure a remote or local core dump partition. You can also use the Network Configuration host profile to set up hosts to use ESXi Dump Collector. For either case, you can apply the host profile of a host that uses ESXi Dump Collector to other hosts. To use ESXi Dump Collector 1 Install the ESXi Dump Collector service on the vCenter Server system or a Windows or Linux system of your choice. ESXi Dump Collector is one of the services you can install using the vCenter Server system installation package. See vSphere Installation and Setup. If you use the vCenter Server on Linux appliance, ESXi Dump Collector is preinstalled. 2 Set up ESXi systems that should use ESXi Dump Collector with commands in the esxcli system coredump namespace. Two namespaces are supported inside this namespace. esxcli system coredump partition get: Retrieve one of the dump partition values. list: List all partitions on the system that have a partition type matching the VMware Core partition type. set: Set the core dump partition for this system. esxcli system coredump network get: Get the currently configure parameters for ESXi Dump Collector (network coredump), if enabled. set: Set the parameters used for network coredump. The following example sets up the network and enables ESXi Dump Collector with the ESXCLI vCLI command. esxcli --server MyESXiHost system coredump network set --interface-name vmk0 --server-ipv4 10XX... --port 6500 esxcli --server MyESXiHost system coredump network get --enable true --type network VMware, Inc. 12 Command-Line Management in vSphere 5 and vSphere 6 for Service Console Users You are prompted for a user name and password for the ESXi host. Retrieving Networking Information Linux commands for retrieving networking information are not included in the ESXi Shell. You can instead use ESXCLI commands. On ESXi 5, ifconfig information is the information for the VMkernel NIC that attaches to the Management Network port group. You can retrieve that information by using ESXCLI commands. esxcli esxcli esxcli esxcli network network network network ip ip ip ip interface interface interface interface list ipv4 get -i vmk ipv6 get -n vmk ipv6 address list You can retrieve information about DNS with the esxcli network ip dns command in the following two namespaces: esxcli network ip dns search esxcli network ip dns server For information corresponding to the Linux netstat command, use the following ESXCLI command. esxcli network ip connection list Adding Third-Party Extensions to Hosts The process of adding patches is simplified in ESXi 5. All patches and third-party extensions can be made available as VIB packages. When a VMware partner releases a third-party extension as a VIB package, the partner can make the package available as a ZIP depot (offline depot). 1 Download the ZIP depot to your ESXi system but do not unpack it. 2 Run esxcli software vib to add the package to your system. 3 Reboot your ESXi system Reboot is always recommended. Some patches do not require reboot. The VIB system refreshes the host daemon after you reboot your system. If the VIB requires an exception to the firewall rules, rebooting also updates the firewall ruleset. You can instead use a firewall configuration file to specify port rules for host services you want to enable for the extension. vSphere Security documentation discusses how to add, apply, and refresh a firewall rule set and lists the esxcli network firewall commands. The ESXi 5 ruleset.xml format is the same as in ESX/ESXi 4.x, but has two additional tags, enabled and required. The firewall on ESXi 5.0 and on ESXi 5.1 still supports the old format. vSphere Upgrade documentation discusses using esxcli software sources and esxcli software vib to explore and install patches and extensions. In some situations, you might use vSphere Update Manager instead of the esxcli command to install third-party extensions. The extension vendor provides information on the install or upgrade process. Reference to Replacements for Service Console Commands Table 4 lists common ESX/ESXi 4.x service console commands and corresponding ESXi 5 shell commands. IMPORTANT This document does not present a complete list of ESXCLI commands. The focus is on replacing existing service console commands. See the vSphere Command‐Line Interface Reference for a complete list of commands. The links in the Command column of the table point to more detailed information for each command, with corresponding ESXCLI commands for each option where available. Click the link in the More Information column for a table with detailed information about that command. VMware, Inc. 13 Command-Line Management in vSphere 5 and vSphere 6 for Service Console Users Table 4. Replacements for Service Console Commands Service Console Command ESXi 5 Replacement More Information Deprecated ESXi Shell esxcli Syntax for most ESXCLI commands has changed. “ESXCLI Command Syntax” on page 15 No esxcfg-advcfg esxcli system settings advanced “esxcfg-advcfg” on page 17 Yes esxcfg-dumppart esxcli system coredump “esxcfg-dumppart” on page 18 Yes esxcfg-firewall In ESX 4.x, protects the service console. In ESXi 5.x, esxcfg-firewall is not necessary because no service console exists. vSphere Security documentation. N.A. The esxcli network firewall command is available for ESXi firewall management. esxcfg-info Provides a view of the internal state of the VMkernel and service console components. Some of the functionality is covered by certain ESXCLI commands. “esxcfg-info” on page 19 No esxcfg-ipsec esxcli network ip ipsec “esxcfg-ipsec” on page 20 No esxcfg-swiscsi esxcli iscsi “esxcfg-swiscsi and esxcfg-hwiscsi” on page 21 Yes esxcfg-module esxcli system module “esxcfg-module” on page 23 Yes esxcfg-mpath esxcli storage core path commands. “esxcfg-mpath” on page 23 Yes esxcfg-nas esxcli storage nfs “esxcfg-nas” on page 24 Yes esxcfg-nics esxcli network nic “esxcfg-nics” on page 24 Yes esxcfg-rescan esxcli storage core commands. “esxcfg-rescan” on page 25 Yes esxcfg-route esxcli network ip route commands “esxcfg-route” on page 22 Yes esxcfg-scsidevs Use esxcli storage core and esxcli storage core filesystem commands. “esxcfg-scsidevs” on page 22 Yes esxcfg-vmknic esxcli network ip interface covers most options and includes a number of options not available in the esxcfg-vmknic command. “esxcfg-vmknic” on page 25 Yes esxcfg-volume esxcli storage filesystem “esxcfg-volume” on page 26 Yes esxcfg-vswif Used to configure service console networking in 4.x systems. Not needed and not available in the ESXi 5.x ESXi Shell. esxcfg-hwiscsi esxcfg-vswitch esxcli network vswitch standard for standard switches. “esxcfg-vswitch” on page 27 Yes Supported in the ESXi 5.x ESXi Shell. If you do not have access to the ESXi Shell, use the resxtop remote vCLI command from a supported Linux system or from vMA. “esxtop” on page 29 No esxcli software vib “esxupdate” on page 29 Yes esxcli network vswitch dvs for distributed switches. esxtop esxupdate Yes Note: Both esxupdate and vihostupdate are not supported against ESXi 5.0 and ESXi 5.1 hosts. vmkfstools The vmkfstools command is available in the ESXi 5.x ESXi Shell. The vmkfstools vCLI command options differ slightly from the shell command options. “vmkfstools” on page 29 No vmkping Use esxcli network diag ping. vSphere Command‐Line Interface Reference. Yes VMware, Inc. 14 Command-Line Management in vSphere 5 and vSphere 6 for Service Console Users Table 4. Replacements for Service Console Commands (Continued) Service Console Command Deprecated ESXi Shell ESXi 5 Replacement More Information vmware-cmd Not available in ESXi Shell. Available in vCLI. In many cases, VMware PowerCLI cmdlets perform the same tasks as vmware-cmd. Use vmware-cmd --help for information. Yes vm-support Creates a tar archive containing debugging information for the server. Use vm-support --help for more information. No This command is intended for use with VMware Support. No equivalent vCLI command exists. ESXCLI Command Syntax In ESXi 4.x, all ESXCLI commands must follow the same syntax. esxcli [cmd_options] In ESXi 5.0 and ESXi 5.1, the ESXCLI command syntax is more flexible. Each command can use an arbitrary number of namespaces. Different commands have a different number of elements. esxcli [namespace, ...] [cmd_options] IMPORTANT You must update all ESXCLI commands explicitly; no scripts are available for the task. Starting with vSphere 5.0, most management commands will be ESXCLI commands. Updates to ESXCLI 4.x Commands The following table lists equivalent commands for esxcli corestorage commands. Table 5. esxcli 4.x corestorage namespace ESXCLI in ESXi 4.x ESXCLI in ESXi 5.x corestorage claiming reclaim --
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