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Category Archives: Alerts

Important support alerts

ALERT: vRealize Automation patch to prevent potential data loss when using bulk import

VMware Support Alert Using bulk import, customers can bring unmanaged machines under management of vRealize Automation. However, if transient issues occur while performing the import operation, this may result in destruction of the machine being imported and data loss.

To guard against such data loss, customers are urged to read KB article: VMware vRealize Automation 7.0 patch to prevent potential data loss when using bulk import (2144526)

Any updates to this information will be made in the KB article itself.

ALERT: Products with public CA certificates expiring Nov.1 | Are you affected?

VMware Support Alert

Starting November 1st 2015, public Certificate Authorities (CA) will no longer issue certificates with a subjectAltName extension or Subject commonName field containing a Reserved IP Address or Internal Name.

Effective October 1st 2016, CAs shall revoke all unexpired Certificates whose subjectAlternativeName extension or Subject commonName field contains a Reserved IP Address or Internal Name.

While this change is not VMware specific, VMware Administrators still need to be aware of the this change and understand if they are impacted. For this reason, we have created the following KB article, and urge you to familiarize yourself with it-

Frequently asked questions about Public Certificate Authority certificates with Internal Server Names and VMware Products (2134735)

Any updates to this information will be made in the KB article itself.

ALERT: Snapshot consolidation causes Unexpected signal: 11

VMware Support Alert

After installing or upgrading to ESXi 5.5 Update 3, customers performing snapshot consolidation may experience virtual machines failing with the error “Unexpected Signal: 11”.

For further details, please refer to this KB article:

Snapshot consolidation causes virtual machines running on VMware ESXi 5.5 Update 3 hosts to fail with the error: Unexpected signal: 11 (2133118)

Any updates to this information will be made in the KB article itself.

ALERT: Linked Clone pool creation and recompose failure

VMware Support AlertBefore upgrading to vSphere 6 update 1, VMware would like everyone to read the following KB article for important information.

Creating and recomposing linked clone desktops will fail on Horizon view 6.1.x and all older releases after upgrading to vSphere 6.0 Update 1.

The Linked Clone desktop appears to be created on vCenter, but it will be deleted  soon after vCenter complains about either “disposable” or “internal” vmdk files  this desktop.

All older versions of Horizon View Composer prior to Horizon 6.2 require SSL v3 to communicate with ESXi hosts, however the SSL v3 has been disabled in ESX6i Update 1 hosts.

Please read this KB article for further information: Upgrading to vSphere 6 update 1 will cause Linked Clone pool creation and recompose failure with Horizon View 6.1.x and older releases (2133018)

Any updates to this information will be made in the KB article itself.

ALERT: Important information before upgrading to vSphere 6.0 Update 1

VMware Support AlertBefore upgrading your environment to vSphere 6.0 Update 1, VMware would like everyone to read the following KB article for important information.

After installing or upgrading to ESXi 6.0 and 6.0 Update 1, customers network connectivity is lost randomly with the error: NETDEV WATCHDOG: vmnic0: transmit timed out. This issue has been resolved.

Please proceed to KB article: ESXi 6.0 network connectivity is lost with NETDEV WATCHDOG timeouts in the vmkernel.log (2124669)

This issue is resolved in ESXi 6.0 Update 1a, available at VMware Downloads. For more information, see the VMware ESXi 6.0 Update 1a Release Notes.

Any updates to this information will be made in the KB article itself.

ALERT: When removing CPU from VM configuration hard disks and nic are removed

VMware Support AlertVMware has become aware of situation whereby hard disks and/or nics may be removed from a virtual machine when reconfiguring VM workflows in vRealize Automation.

We have identified two distinct scenarios where this might happen and so have create two separate KB articles. Please familiarize yourself with both articles so that you can avoid these situations.

  1. When performing reconfigure operations in multiple browser tabs In VMware vRealize Automation, the hard disks and NICs are removed unexpectedly (2124198)
  2. In VMware vRealize Automation, the hard disks are removed unexpectedly when reconfiguring a virtual machine that has RDM disks (2124657)

Any updates to this information will be made in the KB articles themselves. The Additional Information section details how to receive these updates.

ALERT: Support for Leap Seconds in VMware Products

VMware Support AlertThe world’s next leap second adjustment is scheduled for 30th of June 2015 at 23:59:60 UTC.

System administrators need to be aware that this may cause issues on NTP synchronized devices and operating systems. For information on Leap Second and its impact on VMware products, please review the KB article-

Support for Leap Seconds in VMware Products (2115818)

Implications of not upgrading your kernel or enabling Time Skew:

Not all customers will be affected, but those who forgo updating VMware Appliance’s operating system kernel or enable time skew may observe the following issues:

  1. First issue that may be observed is the kernel (simplistically, the Linux operating system) can become hung and require a reboot.
  2. The second issue that may be observed is higher than normal CPU consumption on their Linux appliances where JVM’s are utilized. In the vCenter Server Appliance (VCVA), this problem can manifest itself as high CPU consumption of the ESX Agent Manager (EAM) and other Java-based processes.

ALERT: vSphere Web Client 5.0 fails to load

VMware Support AlertVMware has become aware of an issue with the vSphere Web Client 5.0 failing to load with the error:

RSL Error # of 29
 Error 2046

Note: The RSL Error (# out of 29) number may fail at different values.
Note: This issue only impacts only the usability of the vSphere Web Client 5.0

  • This error occurs regardless of the browser or version used.
  • This is independent of the Adobe Flash version installed.
  • Setting the system clock on an effected system back may allow the vSphere Web Client to work outside of the vCenter Server for a short amount of time.

For further diagnostic and mitigation information refer to KB article: The vSphere Web Client 5.0 fails to load and displays the error: Error # of 29 2046 with RSL (2116567). Any updates to this information will be made in the KB article itself.

ALERT: Virtual Machines on VXLAN Wires may be unable to communicate across hosts with their Edges or Distributed Routers

VMware Support AlertAfter upgrading to VMware ESXi 5.5 Patch 05 (build number: 2702864) with VMware NSX for vSphere 6.1.x your Virtual Machines on VXLAN Wires may be unable to communicate across hosts with their Edges or Distributed Routers.

This is a known issue affecting VMware ESXi 5.5 Patch 5

For further diagnostic and mitigation information refer to KB article: After upgrading to VMware ESXi 5.5 Patch 05, virtual machines using VMware NSX for vSphere 6.1.x is unable to communicate across hosts (2116370)

Any updates to this information will be made in the KB article itself.

Scheduled My VMware Maintenance

MaintenanceMy VMware will be undergoing a scheduled system maintenance on Saturday, April 11th, 2015.  During the time indicated below, you will not be able to place orders or download products.  myLearn login and class registrations will also be restricted.

Begin: 02.00 PM PDT on Saturday, April 11 2015

End:    08.00:PM PDT on Saturday, April 11 2015

We apologize for any inconvenience this creates.