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Rick Blythe

About Rick Blythe

Social Media Program Manager for VMware, Rick Blythe manages the Twitter handle @vmwarecares and curates the Support Insider Blog. Outside of VMware, he blogs about virtualization at VMwarewolf.com

Top 20 Articles for July 2015

Here is our Top 20 KB list for July 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. Installing Windows in a virtual machine using VMware Fusion Easy Install (1011677)
  2. Installing VMware Tools in a Fusion virtual machine running Windows (1003417)
  3. VMware ESXi 5.x host experiences a purple diagnostic screen mentioning E1000PollRxRing and E1000DevRx (2059053)
  4. Troubleshooting Fusion virtual machine performance issues (1015676)
  5. Installing async drivers on VMware ESXi 5.x and ESXi 6.0.x (2005205)
  6. Purging old data from the database used by VMware vCenter Server (1025914)
  7. Manually deleting linked clones or stale virtual desktop entries from the View Composer database in VMware View Manager and VMware Horizon View (2015112)
  8. Troubleshooting Fusion virtual machine startup issues (1014534)
  9. Commands to monitor snapshot deletion in VMware ESXi/ESX (1007566)
  10. Generating and importing a signed SSL certificate into VMware Horizon View 5.1/5.2/5.3/6.0 using Microsoft Certreq (2032400)
  11. ESXi host cannot initiate vMotion or enable services and reports the error: Heap globalCartel-1 already at its maximum size.Cannot expand (2085618)
  12. Uninstalling and manually installing VMware Tools in VMware Fusion (1014522)
  13. Determining Network/Storage firmware and driver version in ESXi/ESX 4.x, ESXi 5.x and ESXi 6.x (1027206)
  14. Troubleshooting networking and internet connection issues in VMware Fusion (1016466)
  15. Troubleshooting Fusion startup issues (1003484)
  16. Powering off a virtual machine on an ESXi host (1014165)
  17. Information about VMware vCloud Air (2052491)
  18. Recreating a missing virtual machine disk descriptor file (1002511)
  19. Accessing the vdp-configure or FLR portal page in VMware vSphere Data Protection 5.x and 6.0.x fails in modern versions of Internet Explorer, Chrome and Firefox (2111900)
  20. Considerations for using software iSCSI port binding in ESX/ESXi (2038869)

Horizon View Connection Protocols

The primary main connection protocols that customers use to connect to their virtual desktop infrastructures include PCoIP, BLAST, and to a lesser extent, RDP. Our front line tech support engineers have compiled this list of articles which cover the most common issues with PCoIP and BLAST:

PCoIP

BLAST

Web Client issues in vSphere 6

Today we'd like to talk about some common issues that have been seen when customers were upgrading to the latest version of our vSphere Web Client.

Perhaps you, during an upgrade, missed some products that were no longer supported (ie: removing plugins that are no longer supported), and now are proving to be reluctant to be removed. Most of these are not production stopping, though they are problematic when it is not expected.

KBs 2111224 and 211292 For customers who have upgraded and may have not seen the documentation on what other products are no longer supported in vSphere 6.0.

KB 1025360 Helps with removing plugins that are no longer compatible with vCenter 6.0.

KB 2119011 To help introduce customers to the feature changes in the vSphere Client and vSphere Web Client in 6.0 and any corresponding errors.

KB 2121185 After upgrading to vSphere 6.0 you may run into items no longer appearing in your inventory. This KB assists in troubleshooting to the services to find the cause.

KB 2121717 Troubleshoots login issues that customers may see in the vSphere environment using the Use Windows Session Credentials check box.

 

SSL certificate issues in VMware Horizon View

SSL certificate issues in VMware Horizon ViewHorizon View Administrators continue to open support requests with issues surrounding SSL certificates in the product configuration. Nobody really enjoys setting up SSL and all the other security aspects that go along with it - it's a necessary evil. Maybe that explains why, when running into issues with it, the first reaction is to get VMware on the phone. After all, doing a Google search on the topic returns scads of content on the topic.

Here's what we're doing about it. We have a troubleshooting KB article, written by our support engineers, to cover all the common configuration issues: Troubleshooting SSL certificate issues in VMware Horizon View 5.1 and later (2082408)

The same engineer suggested we also share this KB, as it also touches a good majority of cases we see coming in:  Generating and importing a signed SSL certificate into VMware Horizon View 5.1/5.2/5.3/6.0 using Microsoft Certreq (2032400)

 

Unable to access Administration and Licensing in vSphere Web Client

After upgrading or deploy the vCenter Server 6.0 or vCenter Server Appliance 6.0, some customers are being denied access to some features. Namely-

  • You are unable to access or see the Single Sign-On administration section
  • When attempting to access the System Configuration (located at: Administration > System Configuration) section, you are presented with:
    You do not have permissions to view this page. You must be a member of the SystemConfiguration.Administrators group in vCenter Single Sign-On to access System Configuration.
  • When attempting to access the Licensing administration (located at: Administration > Licensing > Licenses or Administration > Licensing > Reports) section, you are presented with:
    To view and manage licenses, you must have the Global.Licenses privilege on the vCenter Server system where this vSphere Web Client runs.

If you are encountering any of these messages you will want to check out this recent KB article:
Unable to access new Administration and Licensing features in the vSphere Web Client 6.0 (2120255)

Administration and Licensing in vSphere Web Client

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.

Scan and fix provisioning errors with ViewDbChk tool

Normally, View Administrators can recover from errors that occur during provisioning or other operations by removing or resetting a desktop virtual machine using View Administrator. On rare occasions, the information in the different databases about a machine that is in an error state might become inconsistent and it is not possible to recover from the error using View Administrator. In situations where database inconsistencies cause a desktop machine to be in an unrecoverable error state or prevent a View Administrator task from completing successfully, you can use the ViewDbChk command to resolve the inconsistencies.

In a View environment, information about desktop virtual machines is stored in three places:

  • The LDAP database
  • The View Composer database
  • The vCenter Server database

We've created a new Knowledgebase article specifically for this tool: Removing invalid linked clone entries automatically using the ViewDBChk tool in VMware Horizon View 5.3 and later versions (2118050).

Note: For Horizon View 6.1 and later, the ViewDbChk tool is included with your View Connection Server installation. For Horizon View 5.3 and 6.0, you must download the tool from the VMware Labs ViewDbChk fling page.

viewdbchk

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.

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)