6.5.1
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 vSphere Auto Deploy
- vSphere Auto Deploy TFTP Timeout Error at Boot Time
- vSphere Auto Deploy Host Boots with Wrong Configuration
- Host Is Not Redirected to vSphere Auto Deploy Server
- Package Warning Message When You Assign an Image Profile to a vSphere Auto Deploy Host
- vSphere Auto Deploy Host with a Built-In USB Flash Drive Does Not Send Coredumps to Local Disk
- vSphere Auto Deploy Host Reboots After Five Minutes
- vSphere Auto Deploy Host Cannot Contact TFTP Server
- vSphere Auto Deploy Host Cannot Retrieve ESXi Image from vSphere Auto Deploy Server
- vSphere Auto Deploy Host Does Not Get a DHCP Assigned Address
- vSphere Auto Deploy Host Does Not Network Boot
- Recovering from Database Corruption on the vSphere Auto Deploy Server
- 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
- Troubleshooting Storage Adapters
- Checking Metadata Consistency with VOMA
- No Failover for Storage Path When TUR Command Is Unsuccessful
- 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
Cause
On a vSphere Distributed Switch 5.1 and later in vCenter Server that has networking rollback disabled,
the port group containing the VMkernel adapters for the management network is misconfigured in
vCenter Server and the invalid configuration is propagated to the hosts on the switch.
Note In vSphere 5.1 and later, networking rollback is enabled by default. However, you can enable or
disable rollbacks at the vCenter Server level. For more information see the vSphere Networking
documentation.
Solution
1 From the Direct Console User Interface (DCUI) to an affected host, use the Restore vDS option from
the Network Restore Options menu to configure the uplinks and the ID of the VLAN for the
management network.
The DCUI creates a local ephemeral port and applies the VLAN and uplink configuration to the port.
The DCUI changes the VMkernel adapter for the management network to use the new host local port
to restore connectivity to vCenter Server.
After the host re-connects to vCenter Server, the vSphere Web Client displays a warning that some
hosts on the switch have different networking configuration from the configuration stored in vSphere
distributed switch.
2 In the vSphere Web Client, configure the distributed port group for the management network with
correct settings.
Situation Solution
You have altered the port group
configuration only once
You can roll the configuration of the port group back one step. Right-click the port
group, click Restore Configuration, and select Restore to previous
configuration.
You have backed up a valid
configuration of the port group
You can restore the configuration of the port group by using the backup file. Right-
click the port group, click Restore Configuration, and select Restore
configuration from a file.
You can also restore the configuration for the entire switch, including the port
group, from a backup file for the switch.
You have performed more than one
configuration step and you do not have
a backup file
You must provide valid settings for the port group manually.
For information about networking rollback, recovery, and restore, see the vSphere Networking
documentation.
3 Migrate the VMkernel adapter for the management network from the host local ephemeral port to a
distributed port on the switch by using the Add and Manage Hosts wizard.
Unlike distributed ports, the ephemeral local port of the VMKernel has a non-numeric ID.
For information about handling VMkernel adapters through the Add and Manage Hosts wizard, see
the vSphere Networking documentation.
vSphere Troubleshooting
VMware, Inc. 89