VMware ESXi 6.5, Patch Release ESXi650-201810001 - Updates esx-base, vsan and vsanhealth VIBs

Products

• VMware vSphere ESXi

Issue/Introduction

Symptoms:

Release date: November 29, 2018

Patch Category	Bugfix
Patch Severity	Critical
Host Reboot Required	Yes
Virtual Machine Migration or Shutdown Required	Yes
Affected Hardware	N/A
Affected Software	N/A
VIBs Included	VMware_bootbank_esx-base_6.5.0-2.71.10868328 VMware_bootbank_vsan_6.5.0-2.71.10652415 VMware_bootbank_vsanhealth_6.5.0-2.71.10652417 VMware_bootbank_esx-tboot_6.5.0-2.71.10868328
PRs Fixed	2227187
Related CVE numbers	N/A

Environment

VMware vSphere ESXi 6.5

Cause

Specific conditions in VMware vSAN 6.6 and later might lead to data inconsistencies in applications such as databases. The sequence of the following operations might cause the issue:

1. vSAN initiates resynchronization to maintain data availability.
2. You expand a virtual machine disk (VMDK).
3. vSAN initiates another resync after the VMDK expansion.

The fix in this release prevents further data inconsistencies but does not recover data.

Resolution

Currently, there is no resolution.

Workaround:
To work around this issue, disable the in-place expansion.

Note: Below are applicable only when vSAN 6.5 Express Patch 9 is not installed.

To disable the in-place expansion:

1. Log in to the ESXi host through SSH as root.
2. Set the VSAN.ClomEnableInplaceExpansion advanced configuration option to 0 on all hosts.
   
   Note: Reboot is not required. The VSAN.ClomEnableInplaceExpansion setting does not affect host reboots or running workloads. After all hosts are upgraded, set VSAN.ClomEnableInplaceExpansion back to 1.