6.0.1
Table Of Contents
- vSphere Troubleshooting
- Contents
- About vSphere Troubleshooting
- Updated Information
- Troubleshooting Overview
- Troubleshooting Virtual Machines
- Troubleshooting Fault Tolerant Virtual Machines
- Hardware Virtualization Not Enabled
- Compatible Hosts Not Available for Secondary VM
- Secondary VM on Overcommitted Host Degrades Performance of Primary VM
- Increased Network Latency Observed in FT Virtual Machines
- Some Hosts Are Overloaded with FT Virtual Machines
- Losing Access to FT Metadata Datastore
- Turning On vSphere FT for Powered-On VM Fails
- FT Virtual Machines not Placed or Evacuated by vSphere DRS
- Fault Tolerant Virtual Machine Failovers
- Troubleshooting USB Passthrough Devices
- Recover Orphaned Virtual Machines
- Virtual Machine Does Not Power On After Cloning or Deploying from Template
- Troubleshooting Fault Tolerant Virtual Machines
- Troubleshooting Hosts
- Troubleshooting vSphere HA Host States
- vSphere HA Agent Is in the Agent Unreachable State
- vSphere HA Agent is in the Uninitialized State
- vSphere HA Agent is in the Initialization Error State
- vSphere HA Agent is in the Uninitialization Error State
- vSphere HA Agent is in the Host Failed State
- vSphere HA Agent is in the Network Partitioned State
- vSphere HA Agent is in the Network Isolated State
- Configuration of vSphere HA on Hosts Times Out
- Troubleshooting Auto Deploy
- Auto Deploy TFTP Timeout Error at Boot Time
- Auto Deploy Host Boots with Wrong Configuration
- Host Is Not Redirected to Auto Deploy Server
- Package Warning Message When You Assign an Image Profile to Auto Deploy Host
- Auto Deploy Host with a Built-In USB Flash Drive Does Not Send Coredumps to Local Disk
- Auto Deploy Host Reboots After Five Minutes
- Auto Deploy Host Cannot Contact TFTP Server
- Auto Deploy Host Cannot Retrieve ESXi Image from Auto Deploy Server
- Auto Deploy Host Does Not Get a DHCP Assigned Address
- Auto Deploy Host Does Not Network Boot
- Authentication Token Manipulation Error
- Active Directory Rule Set Error Causes Host Profile Compliance Failure
- Unable to Download VIBs When Using vCenter Server Reverse Proxy
- Troubleshooting vSphere HA Host States
- Troubleshooting vCenter Server and the vSphere Web Client
- Troubleshooting Availability
- Troubleshooting Resource Management
- Troubleshooting Storage DRS
- Storage DRS is Disabled on a Virtual Disk
- Datastore Cannot Enter Maintenance Mode
- Storage DRS Cannot Operate on a Datastore
- Moving Multiple Virtual Machines into a Datastore Cluster Fails
- Storage DRS Generates Fault During Virtual Machine Creation
- Storage DRS is Enabled on a Virtual Machine Deployed from an OVF Template
- Storage DRS Rule Violation Fault Is Displayed Multiple Times
- Storage DRS Rules Not Deleted from Datastore Cluster
- Alternative Storage DRS Placement Recommendations Are Not Generated
- Applying Storage DRS Recommendations Fails
- Troubleshooting Storage I/O Control
- Troubleshooting Storage DRS
- Troubleshooting Storage
- Resolving SAN Storage Display Problems
- Resolving SAN Performance Problems
- Virtual Machines with RDMs Need to Ignore SCSI INQUIRY Cache
- Software iSCSI Adapter Is Enabled When Not Needed
- Failure to Mount NFS Datastores
- VMkernel Log Files Contain SCSI Sense Codes
- Troubleshooting Storage Adapters
- Checking Metadata Consistency with VOMA
- Troubleshooting Flash Devices
- Troubleshooting Virtual Volumes
- Troubleshooting VAIO Filters
- Troubleshooting Networking
- Troubleshooting MAC Address Allocation
- The Conversion to the Enhanced LACP Support Fails
- Unable to Remove a Host from a vSphere Distributed Switch
- Hosts on a vSphere Distributed Switch 5.1 and Later Lose Connectivity to vCenter Server
- Hosts on vSphere Distributed Switch 5.0 and Earlier Lose Connectivity to vCenter Server
- Alarm for Loss of Network Redundancy on a Host
- Virtual Machines Lose Connectivity After Changing the Uplink Failover Order of a Distributed Port Group
- Unable to Add a Physical Adapter to a vSphere Distributed Switch
- Troubleshooting SR-IOV Enabled Workloads
- A Virtual Machine that Runs a VPN Client Causes Denial of Service for Virtual Machines on the Host or Across a vSphere HA Cluster
- Low Throughput for UDP Workloads on Windows Virtual Machines
- Virtual Machines on the Same Distributed Port Group and on Different Hosts Cannot Communicate with Each Other
- Attempt to Power On a Migrated vApp Fails Because the Associated Protocol Profile Is Missing
- Networking Configuration Operation Is Rolled Back and a Host Is Disconnected from vCenter Server
- Troubleshooting Licensing
- Index
Troubleshooting Hosts 3
The host troubleshooting topics provide solutions to potential problems that you might encounter when
using your vCenter Servers and ESXi hosts.
This chapter includes the following topics:
n
“Troubleshooting vSphere HA Host States,” on page 23
n
“Troubleshooting Auto Deploy,” on page 27
n
“Authentication Token Manipulation Error,” on page 32
n
“Active Directory Rule Set Error Causes Host Profile Compliance Failure,” on page 33
n
“Unable to Download VIBs When Using vCenter Server Reverse Proxy,” on page 33
Troubleshooting vSphere HA Host States
vCenter Server reports vSphere HA host states that indicate an error condition on the host. Such errors can
prevent vSphere HA from fully protecting the virtual machines on the host and can impede vSphere HA's
ability to restart virtual machines after a failure. Errors can occur when vSphere HA is being configured or
unconfigured on a host or, more rarely, during normal operation. When this happens, you should determine
how to resolve the error, so that vSphere HA is fully operational.
vSphere HA Agent Is in the Agent Unreachable State
The vSphere HA agent on a host is in the Agent Unreachable state for a minute or more. User intervention
might be required to resolve this situation.
Problem
vSphere HA reports that an agent is in the Agent Unreachable state when the agent for the host cannot be
contacted by the master host or by vCenter Server. Consequently, vSphere HA is not able to monitor the
virtual machines on the host and might not restart them after a failure.
Cause
A vSphere HA agent can be in the Agent Unreachable state for several reasons. This condition most often
indicates that a networking problem is preventing vCenter Server from contacting the master host and the
agent on the host, or that all hosts in the cluster have failed. This condition can also indicate the unlikely
situation that vSphere HA was disabled and then re-enabled on the cluster while vCenter Server could not
communicate with the vSphere HA agent on the host, or that the ESXi host agent on the host has failed, and
the watchdog process was unable to restart it. In any of these cases, a failover event is not triggered when a
host goes into the Unreachable state.
VMware, Inc.
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