Vpxa vmware что это
hostd is an app that runs in the Service Console that is responsible for managing most of the operations on the ESX machine. It knows about all the VMs that are registered on that host, the luns/vmfs volumes visible by the host, what the VMs are doing, etc. Most all commands or operations come down from VC through it. i.e, powering on a VM, VM vMotion, VM creation, etc.
vpxa also runs on the Service Console and talks to VC. I believe it acts as an intermediary between VC and hostd. I think it also does some housekeeping on the ESX host, but not as much as hostd.
понедельник, 18 сентября 2017 г.
Перезапуск Management agents в ESXi и терпение
Бывает такое, что ESXi отключается от vCenter, но виртуальные машины, запущенные на нем, продолжают работать, это означает, что проблема в сервисах гипервизора, отвечающих за коммуникацию с vCenter'ом (Troubleshooting an ESXi/ESX host in non responding state).
При этом по умолчанию SSH на ESXi хостах выключен. И соответственно остается только DCUI - радуемся, что у нас есть iDRAC, iLO, etc. или бежим к серверу.
Ну и здесь все не без проблем. Нажав F2 в DCUI и введя пароль нас ожидает новая проблема, ничего дальше не происходит, окошко логина висит, а в меню мы попасть не можем. Тут нам поможет только терпение, в таком состоянии логин может идти несколько минут, а бывает, что и 15-20 минут. Ждем.
Дождавшись входа на нужно найти пункт меню Troubleshooting Options и выбрать Restart Management Agents:
К сожалению, это не всегда помогает, иногда нужно подключится по SSH, почитать логи и выполнить какие-нибудь команды. Проще простого.
Для это нам нужно включить SSH через DCUI, выбираем пункт меню Troubleshooting Options и Enable SSH. Вот здесь нас снова ожидает большой сюрприз, DCUI перестает реагировать на клавиатуру. Это может продолжаться полчаса, а может и несколько часов. Терпение, ждем и SSH включен. Дело за малым, подключиться по SSH и выполнить команды:
Vmware hostd and vpxa on ESXi 5.X
The vmware-hostd management service is the main communication channel between ESX/ESXi hosts and VMkernel. If vmware-hostd fails, ESX/ESXi hosts disconnects from vCenter Server/VirtualCenter and cannot be managed, even if you try to connect to the ESX/ESXi host directly. It knows about all the VMs that are registered on that host, the luns/vmfs volumes visible by the host, what the VMs are doing, etc. Most all commands or operations come down from VC through it. i.e, powering on a VM, VM vMotion, VM creation, etc.
It acts as an intermediary between VC and hostd. The vCenter Server Agent, also referred to as vpxa or the vmware-vpxa service, is what allows a vCenter Server to connect to a ESX host. Specifically, vpxa is the communication conduit to the hostd, which in turn communicates to the ESX kernel.
Restart the vpxa service
Note:- If you have SSH enabled on your ESXi server these services can also be restarted and even if these are restarted by you then also your SSH session will not be impacted.
VPXD-It is Vcenter Server Service. If this service is stopped then we will not able to connect to Vcenter Server via Vsphere client.
VPXA-It is the agent of Vcenter server. also known as mini vcenter server which is installed on the each esx server which is managed by Vcenter server. What are the management action we are performing on top of the vcenter server. (Like:- Increasing/Decreasing RAM & HDD, Making any type of changes in cluster, doing vmotion. This agent collects all information from the vcenter server and pass this information to the kernal of the esx server.
HOSTD- This is the agent of ESX server, here VPXA pass the information to the HOSTD and hostd pass the information to ESX server.
In ESX, you have only hostd and (if you have vCenter) vpxa.
These are daemon (services) for remote management:
- hostd is used to remote management using VIC
- vpxa is used by vCenter (the vpxd part of vCenter) to remote manament
hostd is the daemon for direct VIC connection (when you use Virtual Infra Client (VIC) to connect to your ESX).
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what is difference between hostd, Vpxa and vpxd. whats there purpose in esx
AndreTheGiant
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hostd is the daemon for direct VIC connection (when you use VIC to connect to your ESX).
vpx is the original name of vCenter Center, so:
vpxa is the VC agent (ESX side)
vpxd is the VC daemon (VC side)
Tanav
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can you explorer more. i did not get.
AndreTheGiant
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In ESX you have only hostd and (if you have vCenter) vpxa.
These are daemon (services) for remote management:
hostd is used to remote management using VIC
vpxa is used by vCenter (the vpxd part of vCenter) to remote manament
vijayalka
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VPXD-It is Vcenter Server Service. If this service is stopped then we will not able to connect to Vcenter Server via Vsphere client.
VPXA-It is the agent of Vcenter server. also known as mini vcenter server which is installed on the each esx server which is managed by Vcenter server. What are the management action we are performing on top of the vcenter server. (Like:- Increasing/Decreasing RAM & HDD, Making any type of changes in cluster,
doing vmotion. This agent collects all information from the vcenter server and pass this information to the kernal of the esx server.
HOSTD- This is the agent of ESX server, here VPXA pass the information to the HOSTD and hostd pass the information to ESX server.
Hope this one give you clear explanation about the difference in between each of them.
hostd is an app that runs in the Service Console that is responsible for managing most of the operations on the ESX machine. It knows about all the VMs that are registered on that host, the luns/vmfs volumes visible by the host, what the VMs are doing, etc. Most all commands or operations come down from VC through it. i.e, powering on a VM, VM vMotion, VM creation, etc.
vpxa also runs on the Service Console and talks to VC. I believe it acts as an intermediary between VC and hostd. I think it also does some housekeeping on the ESX host, but not as much as hostd.
It acts as an intermediary between VC and hostd. The vCenter Server Agent, also referred to as vpxa or the vmware-vpxa service, is what allows a vCenter Server to connect to a ESX host. Specifically, vpxa is the communication conduit to the hostd, which in turn communicates to the ESX kernel.
Note:- If you have SSH enabled on your ESXi server these services can also be restarted and even if these are restarted by you then also your SSH session will not be impacted.
VPXD-It is Vcenter Server Service. If this service is stopped then we will not able to connect to Vcenter Server via Vsphere client.
VPXA-It is the agent of Vcenter server. also known as mini vcenter server which is installed on the each esx server which is managed by Vcenter server. What are the management action we are performing on top of the vcenter server. (Like:- Increasing/Decreasing RAM & HDD, Making any type of changes in cluster, doing vmotion. This agent collects all information from the vcenter server and pass this information to the kernal of the esx server.
HOSTD- This is the agent of ESX server, here VPXA pass the information to the HOSTD and hostd pass the information to ESX server.
- hostd is used to remote management using VIC
- vpxa is used by vCenter (the vpxd part of vCenter) to remote manament
hostd is the daemon for direct VIC connection (when you use Virtual Infra Client (VIC) to connect to your ESX).
This article provides steps to increase the size and number of the hostd , vpxa , and vpxd logs so that additional data is saved. This data may be useful for troubleshooting purposes.
The Management agent ( hostd ), VirtualCenter Agent Service ( vpxa ), and VirtualCenter ( vpxd ) logs are automatically rotated and maintained to manage their growth. Information in the logs can be lost if the logs are rotated too quickly.
Note: Rotation means the turn over of files. For example, if you set the maximum number of log files to 10, after every 10 log files, the numbering restarts at 0.
- hostd
- In ESXi/ESX 4.x hosts, hostd logs are located at /var/log/vmware/
- In ESXi 5.x hosts, hostd logs are located at /var/log/
- In ESXi/ESX 4.x hosts, vpxa logs are located at /var/log/vmware/vpx/
- In ESXi 5.x hosts, vpxa logs are located at /var/log/
- Windows 2003: C:\Documents and Settings\All Users\Application Data\VMware\VirtualCenter\logs
- Windows 2008: C:\ProgramData\VMware\VMware VirtualCenter\Logs
Resolution
Caution: Enabling trivia or verbose logging for a longer duration might cause performance degradation on vCenter Server. Only enable trivia or verbose logging for troubleshooting purposes. VMware highly recommends reverting to default logging (info level) immediately after the troubleshooting is complete. VMware does not recommend enabling trivia/verbose logging in a production environment. Perform the steps in this article only after consulting VMware technical support.
Before you increase the size and number of logs:
- Back up the configuration files.
- Ensure that there is sufficient disk space available to accommodate the logs.
- For important information on restarting the management agents, see Restarting the Management agents on an ESXi or ESX host (1003490).
Caution: VMware does not recommend decreasing the number or size of logs from the default settings.
Vmware hostd and vpxa on ESXi 5.X
The vmware-hostd management service is the main communication channel between ESX/ESXi hosts and VMkernel. If vmware-hostd fails, ESX/ESXi hosts disconnects from vCenter Server/VirtualCenter and cannot be managed, even if you try to connect to the ESX/ESXi host directly. It knows about all the VMs that are registered on that host, the luns/vmfs volumes visible by the host, what the VMs are doing, etc. Most all commands or operations come down from VC through it. i.e, powering on a VM, VM vMotion, VM creation, etc.
It acts as an intermediary between VC and hostd. The vCenter Server Agent, also referred to as vpxa or the vmware-vpxa service, is what allows a vCenter Server to connect to a ESX host. Specifically, vpxa is the communication conduit to the hostd, which in turn communicates to the ESX kernel.
Restart the vpxa service
Note:- If you have SSH enabled on your ESXi server these services can also be restarted and even if these are restarted by you then also your SSH session will not be impacted.
VPXD-It is Vcenter Server Service. If this service is stopped then we will not able to connect to Vcenter Server via Vsphere client.
VPXA-It is the agent of Vcenter server. also known as mini vcenter server which is installed on the each esx server which is managed by Vcenter server. What are the management action we are performing on top of the vcenter server. (Like:- Increasing/Decreasing RAM & HDD, Making any type of changes in cluster, doing vmotion. This agent collects all information from the vcenter server and pass this information to the kernal of the esx server.
HOSTD- This is the agent of ESX server, here VPXA pass the information to the HOSTD and hostd pass the information to ESX server.
In ESX, you have only hostd and (if you have vCenter) vpxa.
These are daemon (services) for remote management:
- hostd is used to remote management using VIC
- vpxa is used by vCenter (the vpxd part of vCenter) to remote manament
hostd is the daemon for direct VIC connection (when you use Virtual Infra Client (VIC) to connect to your ESX).
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
- VMware Technology Network
- :
- Cloud & SDDC
- :
- VI 3.X
- :
- VI: VMware ESXi™ 3.5 Discussions
- :
- what is difference between hostd, Vpxa and vpxd.
Tanav
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what is difference between hostd, Vpxa and vpxd. whats there purpose in esx
AndreTheGiant
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hostd is the daemon for direct VIC connection (when you use VIC to connect to your ESX).
vpx is the original name of vCenter Center, so:
vpxa is the VC agent (ESX side)
vpxd is the VC daemon (VC side)
Tanav
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can you explorer more. i did not get.
AndreTheGiant
- Mark as New
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In ESX you have only hostd and (if you have vCenter) vpxa.
These are daemon (services) for remote management:
hostd is used to remote management using VIC
vpxa is used by vCenter (the vpxd part of vCenter) to remote manament
vijayalka
- Mark as New
- Bookmark
- Subscribe
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- Email to a Friend
VPXD-It is Vcenter Server Service. If this service is stopped then we will not able to connect to Vcenter Server via Vsphere client.
VPXA-It is the agent of Vcenter server. also known as mini vcenter server which is installed on the each esx server which is managed by Vcenter server. What are the management action we are performing on top of the vcenter server. (Like:- Increasing/Decreasing RAM & HDD, Making any type of changes in cluster,
doing vmotion. This agent collects all information from the vcenter server and pass this information to the kernal of the esx server.
HOSTD- This is the agent of ESX server, here VPXA pass the information to the HOSTD and hostd pass the information to ESX server.
Hope this one give you clear explanation about the difference in between each of them.
hostd is an app that runs in the Service Console that is responsible for managing most of the operations on the ESX machine. It knows about all the VMs that are registered on that host, the luns/vmfs volumes visible by the host, what the VMs are doing, etc. Most all commands or operations come down from VC through it. i.e, powering on a VM, VM vMotion, VM creation, etc.
vpxa also runs on the Service Console and talks to VC. I believe it acts as an intermediary between VC and hostd. I think it also does some housekeeping on the ESX host, but not as much as hostd.
It acts as an intermediary between VC and hostd. The vCenter Server Agent, also referred to as vpxa or the vmware-vpxa service, is what allows a vCenter Server to connect to a ESX host. Specifically, vpxa is the communication conduit to the hostd, which in turn communicates to the ESX kernel.
Note:- If you have SSH enabled on your ESXi server these services can also be restarted and even if these are restarted by you then also your SSH session will not be impacted.
VPXD-It is Vcenter Server Service. If this service is stopped then we will not able to connect to Vcenter Server via Vsphere client.
VPXA-It is the agent of Vcenter server. also known as mini vcenter server which is installed on the each esx server which is managed by Vcenter server. What are the management action we are performing on top of the vcenter server. (Like:- Increasing/Decreasing RAM & HDD, Making any type of changes in cluster, doing vmotion. This agent collects all information from the vcenter server and pass this information to the kernal of the esx server.
HOSTD- This is the agent of ESX server, here VPXA pass the information to the HOSTD and hostd pass the information to ESX server.
- hostd is used to remote management using VIC
- vpxa is used by vCenter (the vpxd part of vCenter) to remote manament
hostd is the daemon for direct VIC connection (when you use Virtual Infra Client (VIC) to connect to your ESX).
This article provides steps to increase the size and number of the hostd , vpxa , and vpxd logs so that additional data is saved. This data may be useful for troubleshooting purposes.
The Management agent ( hostd ), VirtualCenter Agent Service ( vpxa ), and VirtualCenter ( vpxd ) logs are automatically rotated and maintained to manage their growth. Information in the logs can be lost if the logs are rotated too quickly.
Note: Rotation means the turn over of files. For example, if you set the maximum number of log files to 10, after every 10 log files, the numbering restarts at 0.
- hostd
- In ESXi/ESX 4.x hosts, hostd logs are located at /var/log/vmware/
- In ESXi 5.x hosts, hostd logs are located at /var/log/
- In ESXi/ESX 4.x hosts, vpxa logs are located at /var/log/vmware/vpx/
- In ESXi 5.x hosts, vpxa logs are located at /var/log/
- Windows 2003: C:\Documents and Settings\All Users\Application Data\VMware\VirtualCenter\logs
- Windows 2008: C:\ProgramData\VMware\VMware VirtualCenter\Logs
Resolution
Caution: Enabling trivia or verbose logging for a longer duration might cause performance degradation on vCenter Server. Only enable trivia or verbose logging for troubleshooting purposes. VMware highly recommends reverting to default logging (info level) immediately after the troubleshooting is complete. VMware does not recommend enabling trivia/verbose logging in a production environment. Perform the steps in this article only after consulting VMware technical support.
Before you increase the size and number of logs:
- Back up the configuration files.
- Ensure that there is sufficient disk space available to accommodate the logs.
- For important information on restarting the management agents, see Restarting the Management agents on an ESXi or ESX host (1003490).
Caution: VMware does not recommend decreasing the number or size of logs from the default settings.
hostd
- Log in to your host as root from either an SSH session or directly from the console. For more information, see Using Tech Support Mode in ESXi 4.1 and ESXi 5.x (1017910) or Enabling root SSH login on an ESX host (8375637).
- Open the configuration file for hostd in a text editor.
Note: The configuration file for hostd is found at /etc/vmware/hostd/config.xml .
ESXi 5.x only: To redirect logs to local disk instead of syslog for troubleshooting purposes, first change this line in the config.xml file (located at /etc/vmware/hostd/config.xml ) to true .
The file looks similar to:
Description of each entry:
Note: The entry can also be updated with a full path to a VMFS datastore. For example:
Note: In 5.x, hostd log output is set by default to output to syslog . In this case, the advanced settings Syslog.loggers.hostd.rotate and Syslog.loggers.hostd.size take precedence over the settings on the /etc/vmware/hostd/config.xml file.
- Connect to the ESXi host with the vSphere Client.
- Under the Configuration tab, in the Software section, click Advanced Settings.
- Click Syslog to expand.
- Click loggers, to expand.
- Click hostd.
- Locate Syslog.loggers.hostd.rotate and Syslog.loggers.hostd.size .
- Use the text boxes to the right of the variable to adjust the setting.
Note: The default for 5.0.x is rotate 10 files with a size of 5120 KiB each, the default for 5.1.x and 5.5.x is rotate 10 files with a size of 10240 KiBeach. When making changes here do not need to restart hostd because values are dynamically set on the host.
- Using the vSphere Client, connect to the vCenter Server.
- Click the ESXi 5.x host, then click Configuration.
- Under Software, click Advanced Settings.
- In the Advanced Settings, click Config >HostAgent >log.
- Update the config.HostAgent.log.level setting with the preferred logging level. For information on the different logging levels, see theAdditional Information section.
- Log in to your ESXi/ESX host as root from either an SSH session or directly from the console. For more information, see Using Tech Support Mode in ESXi 4.1 and ESXi 5.x (1017910) or Enabling root SSH login on an ESX host (8375637).
- Open the configuration file for vpxa in a text editor.
Note: For ESX 3.5 through ESXi/ESX 4.1, the file is found at /etc/opt/vmware/vpxa/vpxa.cfg . For ESXi 5.x, the vpxa.cfg file is located at /etc/vmware/vpxa . In ESXi 5.0, the vpxa.cfg file is set to read-only.
The file looks similar to:
Description of each entry:
Note: In 5.x, vpxa log output is set by default to output to syslog . In that case, the advanced settings Syslog.loggers.vpxa.rotate and Syslog.loggers.vpxa.size take precedence over the settings on the vpxa.cfg file.
- Connect to the ESXi host in question with the vSphere Client.
- Select the Configuration tab and click on Advanced Settings in the Software section.
- Expand Syslog then expand loggers, and then select vpxa.
- Locate Syslog.loggers.vpxa.rotate and Syslog.loggers.vpxa.size .
- Use the text boxes to the right of the variable to adjust the setting.
Note: The default for 5.0.x is rotate 10 files with a size of 5120 KiB each, the default for 5.1.x and 5.5.x is rotate 20 files with a size of 5120 KiBeach. When making changes here do not need to restart vpxa because values are dynamically set on the host.
- Using the vSphere Client, connect to the vCenter Server.
- Click the ESXi 5.x host, then click Configuration.
- Under Software, click Advanced Settings.
- In Advanced Settings, click Vpx >Vpxa >config >log.
- Update the Vpx.Vpxa.config.log.level setting with the preferred logging level. For information on the different logging levels, see theAdditional Information section.
If the vCenter Server does not start, you must enable trivia logging manually.
- Log into the vCenter Server as an administrator.
- Open the configuration file for vpxd in a text editor.
Note: The configuration file for vpxd is found at:
%ALLUSERSPROFILE%\Application Data\VMware\VMware VirtualCenter\vpxd.cfg
In the vCenter Server Appliance, the vpxd.cfg file is located at: /etc/vmware-vpx/vpxd.cfg .
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