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Knowledge Base

VMware High Availability cluster reports the error: Could not reach isolation address (1002787)

Last Updated: 2/27/2024Categories: How toTotal Views: 143426Language:
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Details

A VMware High Availability (HA) cluster reports an error similar to:

Could not reach isolation address: <xxx.xxx.xxx.xxx>

Cause

On a regular basis HA contacts ( using ICMP ping ) its isolation response address to ensure the cluster is functioning correctly. The default isolation response address is the default gateway but other reliable IP addresses can be configured along with the default gateway or the default gateway can also be disabled as an isolation response address.

This issue can occur when HA does not receive a response from all of its configured isolation response addresses.

Solution

To resolve this issue, investigate your network to determine why HA is unable to receive a response from at least one isolation response address.

Note:

If the isolation response address was manually added using the advanced setting das.isolationaddress remove the non-pingable isolation address from your advanced settings and specify a new pingable isolation address.

When the listed ip address is the currently configured default gateway, add an additional isolation address using das.isolationaddress and disable the use of the default gateway for isolation verification using the advanced setting das.usedefaultisolationaddress set to false.

For more information on advanced configuration options for HA, see:

Advanced Configuration options for VMware High Availability (1006421)

Additional Information

For translated versions of this article, see:

Español:

Português:

日本語: VMware High Availability クラスタから次のエラーが報告される：Could not reach isolation address (2080857)

简体中文: VMware High Availability 群集报告以下错误：无法到达隔离地址 (2086197)

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End Of General Availability of the Free vSphere Hypervisor (ESXi 7.x and 8.x) (2107518)

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