Uneven or less iSCSI paths on boot from SAN hosts after upgrading to ESXi 8.0 U3h

Products

• VMware vSphere ESXi

Issue/Introduction

Administrators may notice after upgrading to ESXi 8.0 U3h from a previous version have less paths than previous seen on prior builds per iSCSI LUN.

This issue manifests only if the ESXi host is using iSCSI Port Bindings and the ESXi host is booting from SAN.

Environment

vSphere ESXi 8.0 U3h

Cause

Due to a known issue with the boot sequence, some duplicate entries for iSCSI Port Bindings can be duplicated in the vmkernel scsi database. This can cause issues with the amount of paths are detected.

Resolution

This is a known issue and VMware engineering are implementing a fix in a later release. This article will be updated once that occurs with the version that has the code fix.

If you encounter this issue and seek to have a workaround in the meantime, please contact and open a service request and refer to this article and an engineer will assist you with this workaround.