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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.

KBTV Webinars - SSL certificate handling in VMware vSphere 6

Continuing on with our current series of KBTV Webinars, here we have the tenth webinar titled SSL certificate handling in VMware vSphere 6 and it goes through what has changed since the vSphere 5.5 product release and what is new in vSphere 6.

Top 30 Horizon with View KB articles

announcementHorizon View users will enjoy our latest list of top issues. We decided to present 30 this time around. Some you may have seen before, but we've also added new content to the Knowledgebase for View. Have a look and see if you're battling any of these currently.

  1. Generating and importing a signed SSL certificate into VMware Horizon View 5.1/5.2/5.3/6.0 using Microsoft Certreq (2032400)
  2. Manually deleting linked clones or stale virtual desktop entries from the View Composer database in VMware View Manager and VMware Horizon View (2015112)
  3. VMware Products and CVE-2014-3566 (POODLE) (2092133)
  4. Finding and removing unused replica virtual machines in the VMware Horizon View (2009844)
  5. The Event database performance in VMware Horizon View 6.x is extremely slow (2094580)
  6. Restart order of the View environment to clear ADLDS (ADAM) synchronization in View 4.5, 4.6, 5.0, and 5.1 (2068381)
  7. Provisioning View desktops fails due to customization timeout errors (2007319)
  8. View Connection Server reports the error: [ws_TomcatService] STDOUT: java.lang.OutOfMemoryError: Java heap space (2009877)
  9. Pool settings are not saved, new pools cannot be created, and vCenter Server tasks are not processed in a Horizon View environment (2082413)
  10. VMware App Volumes information center (2107821)
  11. Network connectivity requirements for VMware View Manager 4.5 and later (1027217)
  12. Manually deleting replica virtual machines in VMware Horizon View 5.x (1008704)
  13. The View virtual machine is not accessible and the View Administration console shows the virtual machine status as "Already Used" (1000590)
  14. Location of VMware View log files (1027744)
  15. Removing a standard (replica) connection server or a security server from a cluster of connection/security servers (1010153)
  16. Forcing replication between ADAM databases (1021805)
  17. Troubleshooting a black screen when logging into a Horizon View virtual desktop using PCoIP (1028332)
  18. Generating a Horizon View SSL certificate request using the Microsoft Management Console (MMC) Certificates snap-in (2068666)
  19. VMware Horizon View Best Practices (1020305)
  20. Migrating linked clone pools to a different or new datastore (1028754)
  21. Cannot detach a Persistent Disk in View Manager 4.5 and later (2007076)
  22. View Persona Management features do not function when Windows Client-Side Caching is in effect (2016416)
  23. Provisioning View desktops fail with the error: View Composer Fault: VC operation exceeded the task timeout limit set by View Composer (2030047)
  24. Troubleshooting and Frequently Asked Questions for space reclamation in VMware Horizon View 5.2.x and 5.3.x (2039907)
  25. Guidelines for generating and importing an SSL certificate for the View Connection Server for View 5.0.1 and earlier (1008705)
  26. Configuring USB device filters and redirecting Human Interface Devices (HIDs) in View Client (1011600)
  27. Collecting diagnostic information for VMware Horizon View (1017939)
  28. View Manager Admin console displays the error: Error during provisioning: Unexpected VC fault from View Composer (Unknown) (2014321)
  29. Network port diagram for VMware Horizon View 6.x (2085363)
  30. Configuring VMware View Event database on an SQL server fails with the error: An error occurred while attempting to configure the database (1029537)

Top 20 Articles for May 2015

Here is our Top 20 KB list for May 2015. This list is ranked by the number of times a VMware Support Request was resolved by following the steps in a published Knowledge Base article.

  1. VMware ESXi 5.x host experiences a purple diagnostic screen mentioning E1000PollRxRing and E1000DevRx (2059053)
  2. Installing async drivers on VMware ESXi 5.x and ESXi 6.0.x (2005205)
  3. Investigating virtual machine file locks on ESXi/ESX (10051)
  4. Commands to monitor snapshot deletion in VMware ESXi/ESX (1007566)
  5. Determining Network/Storage firmware and driver version in ESXi/ESX 4.x, ESXi 5.x and ESXi 6.x (1027206)
  6. Correlating VMware products build numbers to update levels (1014508)
  7. Unmounting a LUN or detaching a datastore/storage device from multiple VMware ESXi 5.x/6.0 hosts (2004605)
  8. VMware products not affected by CVE-2015-3456, aka VENOM (2117469)
  9. Accessing the vdp-configure or FLR portal page in VMware vSphere Data Protection 5.x and 6.0.x fails in modern versions of Chrome and Firefox (2111900)
  10. Recreating a missing virtual machine disk descriptor file (1002511)
  11. Information about the error: state in doubt; requested fast path state update (1022026)
  12. Broadcom 5719/5720 NICs using tg3 driver become unresponsive and stop traffic in vSphere (2035701)
  13. Snapshot consolidation in VMware ESXi 5.5.x and ESXi 6.0.x fails with the error: maximum consolidate retries was exceeded for scsix:x (2082886)
  14. Decoding Machine Check Exception (MCE) output after a purple screen error (1005184)
  15. Configuring a diagnostic coredump partition on an ESXi 5.x host (2004299)
  16. Unable to delete the virtual machine snapshot due to locked files (2017072)
  17. Using esxtop to identify storage performance issues for ESX / ESXi (multiple versions) (1008205)
  18. vSphere handling of LUNs detected as snapshot LUNs (1011387)
  19. Committing snapshots when there are no snapshot entries in the Snapshot Manager (1002310)
  20. ESXi/ESX hosts with visibility to RDM LUNs being used by MSCS nodes with RDMs may take a long time to start or during LUN rescan (1016106)

What's new in VMware vSphere 6 - KBTV Webinars

Continuing on with our current series of KBTV Webinars, here we have the ninth webinar titled What is new in vSphere 6 and it goes through what has changed since the vSphere 5.5 product release.

NOTE: This video is roughly 35 minutes in length so it would be worth blocking out some time to watch it!

Introduction to VMware NSX - KBTV Webinars

Continuing on with our current series of KBTV Webinars, here we have the eighth webinar titled: Introduction to VMware NSX which provides an overview of what NSX is, and how it relates to the SDDC (Software Defined Datacenter).

NOTE: This video is roughly 37 minutes in length so it would be worth blocking out some time to watch it!

To see details of upcoming webinars in this series, see the Support Insider Blog post: New Free Webinars.

How to setup mirrored folders between your Mac and Fusion VM

Did you know that you can setup mirrored folders for your Mac and Fusion virtual machine?

Mirrored folders allow the Mac and the virtual machine to see the same content in certain personal data folders. For example, any content put on the Mac's desktop also appears on the Windows desktop. Similarly any content put in the My Documents folder in Windows also appears in the Mac user's Documents folder.

The mirrored content resides on the Mac so that it is accessible even when the virtual machine is off. Mirrored folders work by redirecting where Windows looks for certain user folders (Desktop, Documents, Music, Pictures, Movies, and Downloads) from their default Windows locations to the corresponding locations on the Mac. It does this by means of registry redirects (much like Group Policy can redirect user folders to a network location). Mirrored folders allows your Windows virtual machine to treat the Mac's Desktop, Documents, Music, Pictures, Movies, and Downloads folders as its own; it does not, however, let your Mac see the Windows default Desktop, My Documents, My Music, My Pictures, My Movies, or Downloads folders, and your Mac never has access to data saved on the Windows computer.

This video discusses and demonstrates how to setup mirrored folders for your Mac and Fusion virtual machine. For additional information, see VMware Knowledge Base article Setting up mirrored folders for your Mac and virtual machine (1014127).

Fresh vSphere 6 KB articles!

vSphere 6.0 has been out now for a few weeks and you early adopters have been busy kicking the tires. We've heard some very encouraging things about this release ie: the web client improvements. It's always interesting and top of mind for us to see what issues emerge in everyone's environments and we monitor support requests coming into support as well as social media to see what customers run into.

Here's an fresh list of Knowledgebase articles we've created to address some of these inquiries. Familiarize yourself with the list and of course share with your colleagues using the buttons on this page.

Database compatibility issues during upgrade

Deprecated VMFS volume errors

Backup failures/CBT mem heap issues

Replace certificates for vSphere 6.0

Decommissioning a vCenter Server or Platform Services Controller

Overview of Storage I/O Control (SIOC) - KBTV Webinars

This video is the seventh in a series of free webinars for you, our customer. This one is titled: Overview of Storage I/O Control (SIOC) and it goes through what Storage I/O Control is, its requirements and how it works.

NOTE: This video is roughly 40 minutes in length so it would be worth blocking out some time to watch it!

To see details of upcoming webinars in this series, see the Support Insider Blog post: New Free Webinars.

How to install vSphere 6 ESXi using the Interactive Installer

Interactive installations are recommended for small deployments of four or less hosts. Installation using this method involves booting from the ESXi 6.0 installation media by inserting the media in to the host and following the prompts from the installation wizard to choose a destination disk in the host and begin the installation. Our video today demonstrates how to install vSphere 6 ESXi using the Interactive Installer.

The ESXi installation media can be connected to the host in a few different ways:

  • Inserting the CD/DVD in to the DVD-ROM drive in the server
  • Plugging in a bootable USB device
  • Mounting an ISO remotely

When instructed to begin, the installer reformats and partitions the target disk and installs the ESXi boot image. If you have not installed ESXi on the target disk previously, all data located on the drive is overwritten, including hardware vendor partitions, operating system partitions, and associated data.

Note: The formatting and partitioning done by the ESXi installer is permanent and overwrites existing data. To ensure that you do not lose any data, migrate any important data from the host to another machine before you install ESXi. If you are installing ESXi on a disk that contains an installation of ESXi/ESX or a VMFS datastore, you are presented with upgrade options.

For additional information, see VMware Knowledge Base article Methods for installing ESXi 6.0 (2109708).