Knowledge Base

The VMware Knowledge Base provides support solutions, error messages and troubleshooting guides
 
Search the VMware Knowledge Base (KB)   View by Article ID
 

On NUMA Systems With More Than 64GB RAM, ESX Server Host Might Fail to Boot (1000087)

Details

An ESX Server host supports a maximum of 64GB of physical memory. On NUMA systems, memory must be distributed equally among the NUMA nodes. If a NUMA system has more than 64GB of RAM, the ESX Server automatically truncates the RAM to 64GB. As a result of this truncation, some nodes might be left without memory and the later part of VMkernel initialization might fail.
 
Note: when upgrading to ESX 3.5.x, please review memory specifications. For e.g., the specification for memory for 3.0.x is 64GB. This increases to 256GB with ESX 3.5.x release.

Solution

Remove memory from each node so that the amount of memory left on each node is balanced across NUMA nodes. Ensure the total physical memory present on the server is not greater than 64GB.
 
 

Request a Product Feature

To request a new product feature or to provide feedback on a VMware product, please visit the Request a Product Feature page.

Feedback

  • 2 Ratings

Did this article help you?
This article resolved my issue.
This article did not resolve my issue.
This article helped but additional information was required to resolve my issue.
What can we do to improve this information? (4000 or fewer characters)
  • 2 Ratings
Actions
KB: