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Monthly Archives: July 2009

KB Highlight: vSphere 4.0 HA cluster may not fail VMs over during host failure when ESX Host IP is configured with certain Class A IP address

We wanted to get the word out ASAP on another KB article today. This one
involves VMware High Availability (HA), and customers with this specific
configuration with vSphere 4 need to be aware of this bug.

In vSphere 4.0, HA does NOT failover VMs when an host failure occurs. When
the ESX host COS IP address in the cluster are configured with certain IP
address the node failure detection algorithm fails.

IP Range – HA Functionality

0.x.x.x – 2.x.x.x – Failover Works
3.x.x.x – 9.x.x.x – Failover DOES NOT
work
10.x.x.x – 25.x.x.x – Failover works
26.x.x.x – 99.x.x.x – Failover
DOES NOT work
100.x.x.x – 255.x.x.x – Failover works

The issue has been seen and reported on Class A IP Addresses. If your ESX
COS/Management IP Address is on an internal 10.x.x.x or 192.x.x or if you use an
Class B or Class C IP address, then you will not be affected by this issue.

Note that our team is working on a permanent solution to this issue.

Continue reading vSphere 4.0 HA cluster may not fail VMs over during host failure
when ESX Host IP is configured with certain Class A IP address
.

Storage Heavy Hitters

Our guys and gals that support Storage issues have identified the top 10 KB articles that get the most bang for the buck. These articles help resolve a lot of problems that customers run into. You might enjoy this list if you’ve ever run into issues with your storage arrays.

Watch this space in the coming days for more top ten lists. Coming up next, Installation KBs!

Article # Title
9453805 Resignaturing VMFS3 volumes from VMware Infrastructure Client
1004232 Cannot power on a virtual machine because the virtual disk cannot be opened
1002511 Recreating a missing VMDK (header) file
1008083 Configuring and troubleshooting basic Software iSCSI setup
1005009 Troubleshooting SCSI Reservation failures on Virtual Infrastructure 3.x and vSphere 4.x
1004771 Insight Manager may cause SCSI reservation conflicts
1006847 Committing snapshots from within the Service Console
1002310 Committing snapshots when there are no snapshot entries in the snapshot manager
1008130 VMware ESX and ESXi 3.5 U3 I/O failure on SAN LUN(s) and LUN queue is blocked indefinitely
6482648 VMFS Volume Can Be Erroneously Recognized as a Snapshot

KB Highlight: System does not clear RAID controller cache during shutdown

We recently discovered an issue that will only occur under very specific conditions. We felt that given the fact that there is a potential for data corruption, we would highlight this KB article here.

All of these conditions must be met to be affected:

  • Systems with ESX/ESXi 4.0 installed
  • The system is equipped with a RAID controller using one of these drivers:

    megaraid2
    megaraid_sas
    aacraid

  • RAID controller battery backup unit is completely discharged after a shutdown (48 hours or longer)
  • Local disks are attached to the affected HBA

Data corruption might occur because the RAID controller cache is not cleared while shutting down the server and will be lost when the battery backup is depleted.

Note that our team is working on a permanent solution to this issue.

Continue reading System does not clear RAID controller cache during shutdown

Top Ten System Management KBs

Based on the kind of questions and issues that come into support we’ve compiled a list of the top Knowledge Base articles for what we term ‘System Management’ issues. System Management is a difficult category to describe.  It generally revolves around vCenter and managing the resources it is in control of. DRS, HA, and VMotion come to mind as an example.

Here are some feature articles for this area:

Article #

Title

1003212

Enhanced VMotion Compatibility (EVC) processor support

1001596

Troubleshooting Adding an ESX Server Host to a VMware High Availability Cluster

1003490

Restarting the Management agents on an ESX Server

1009607

Pegasus (cimserver) memory leaks reported in ESX 3.5 Update 2 and later

1004382

After VirtualCenter 2.5 upgrade: Performance data is currently not available for this entity

1993

VMotion CPU Compatibility – Migrations Prevented Due to CPU Mismatch – How to Override Masks

1003691

Diagnosing a VMware High Availability cluster configuration failure

1003980

Troubleshooting transaction logs on a Microsoft SQL database server

749640

Cannot open Virtual Machine Console

1004667

Applying DRS settings to an ESX host generates an error

New articles published for week ending 7/26/2009

VMware ACE
Poor performance on Windows 2000 guest after installing VMware Tools (1011731)
Date Published: 7/23/2009
Memory limits if installing Windows NT 4.0 with no service pack (1011732)
Date Published: 7/23/2009
Running guest screen savers on Linux hosts with a XFree86 3.x X Server (1011772)
Date Published: 7/23/2009
Warnings when installing VMware Tools on some VMware products running Windows Server 2008 and Windows Vista (1011727)
Date Published: 7/22/2009
Network adapter change needed for some VMware Products running Windows Vista (1011728)
Date Published: 7/22/2009
Product activation for Windows XP and Windows Server 2003 (1011701)
Date Published: 7/22/2009
Hibernation with Windows Server 2003 and Windows XP (1011703)
Date Published: 7/22/2009 

VMware ESX
A virtual machine experiences a Monitor Panic and powers off after the error: Unable to retrieve the MSR lines from the "/dev/ttyS0" serial port: Operation not permitted (1012337)
Date Published: 7/24/2009
ESX host cannot be connected to vCenter (1012526)
Date Published: 7/24/2009
Virtual machines might not respond sometimes during LUN failovers (1012851)
Date Published: 7/24/2009
ESX host may become unresponsive with the error: BMC returned incorrect response, expected netfn 7 , got netfn 7 (1011673)
Date Published: 7/23/2009
SVGA Drivers on Windows 7 (1011709)
Date Published: 7/22/2009
Using VMware Tools drivers on Window Preinstallation (1011710)
Date Published: 7/22/2009
Exception occurred due to a bad disk geometry when installing ESX host (1010546)
Date Published: 7/20/2009 

VMware ESXi
Installation of patch using vihostupdate fails ESXi hosts without asociated LUN (1012640)
Date Published: 7/23/2009 

VMware vCenter Lab Manager
Overview of Lab Manager log files (1011478)
Date Published: 7/20/2009 

VMware vCenter Site Recovery Manager
SRM dr-ip-customizer: dash or hyphen character in MAC address causes error (1011693)
Date Published: 7/23/2009

VMware View Manager
View Composer was unable to contact VirtualCenter (1011486)
Date Published: 7/20/2009

VMware Virtual Desktop Manager
VMware Desktop Manager 2.x Connection Server issues (1011477)
Date Published: 7/23/2009

VMware vShield Zones
Installing vShield agents in vCenter Server resources with multi-byte characters in the name (1012436)
Date Published: 7/24/2009

New articles published for week ending 7/19/2009




































































































































































VMware ESX
Cannot patch or upgrade ESX 4.0 hosts with vSphere Host Update Utility(1012467)
7/17/2009
Exporting a virtual machine to an OVF template fails(1012510)
7/17/2009
Determining detailed build number information for VMware ESX  4.0.x hosts(1012514)
7/16/2009
“Error: sysobjectid token not a parsable OID” in /var/log/messages when snmpd service is started on ESX 3.0.3(1012001)
7/15/2009
Windows 2008 or Vista cannot see more than 4GB of RAM(1012466)
7/15/2009
VMware ESXi
ESXi hosts experience intermittent lockups after upgrading to ESXi 3.5 Update 4(1012575)
7/16/2009
How to determine build number for vSphere CLI (aka) VMware Remote CLI and SDK for Perl (aka) VI Perl Toolkit(1012022)
7/14/2009
VMware vCenter AppSpeed
AppSpeed setup fails with a connection timeout(1011939)
7/13/2009
Downloading the UI module for AppSpeed fails(1011987)
7/13/2009
Virtual machine does not appear in the AppSpeed inventory tree(1011991)
7/13/2009
Cannot see your application in the AppSpeed UI(1011992)
7/13/2009
Changing AppSpeed server IP address requires reinstall of probes(1012389)
7/13/2009
AppSpeed setup fails due to missing eth0(1012390)
7/13/2009
Probe deployment fails because of a communication problem between the server and probe(1012393)
7/13/2009
Deleting a probe in the AppSpeed Administration tab results in an error(1012394)
7/13/2009
AppSpeed probe displays status as ‘down’ but is processing traffic(1012404)
7/13/2009
VMware vCenter Chargeback
Change the data collector logging level(1012328)
7/14/2009
Purging stats data fails in Oracle Database with a bind variable error(1012451)
7/14/2009
VMware vCenter Lab Manager
Changing Lab Manager Virtual Machine NIC Emulation Type(1010525)
7/14/2009
Operations on VMware Fault Tolerance-Enabled Virtual Machines In Lab Manager Might Fail(1012470)
7/14/2009
After LUN Resignature, Unable to see that a LUN is Connected to a Host(1012471)
7/14/2009
Determining the number of deployed virtual machines and virtual routers(1012520)
7/14/2009
Troubleshooting Host Spanning Transport Networks(1011909)
7/13/2009
Cannot prepare a Lab Manager host that was removed from VirtualCenter without being unprepared(1011912)
7/13/2009
Manually preparing a Lab Manager 4.0 host(1011915)
7/13/2009
Enabling debug logging in Lab Manager 4.x(1012319)
7/13/2009
Collecting diagnostic information for Lab Manager 4.x(1012324)
7/13/2009
VMware vCenter Server
vpxd log directory path when vCenter Server 4.0 is installed on Windows Server 2008(1011938)
7/15/2009
VMware vCenter Update Manager
Update Manager upgrade fails with the error: The Wizard was interrupted before vmware could be completed installed(1010541)
7/14/2009
VMware View Manager
View Composer database has discrepancies due to machine IDs(1012489)
7/17/2009
VMware vShield Zones
Changing vCenter Server resources allotted to vShield Zones virtual appliances(1012429)
7/15/2009
vShield Zones OVF import fails and results in an error(1012440)
7/15/2009
Restrictions on the number of vShield agents and virtual machines supported by vShield Zones(1012144)
7/14/2009
vShield Zones virtual appliance stops working if you remove and re-add NICs from it(1012228)
7/14/2009
VMware vSphere Management Assistant
VMware vSphere Management Assistant (vMA) Patch 01(1012134)
7/14/2009

Got VMware Licensing Questions?

Ever since vSphere 4 came out we’ve had a surge in questions about the new licensing model. Did you know our Knowledge Base covers licensing as well as hard-core technical topics?

We tend to think of the Knowledge Base as a problem & fix resource, but we want to get the word out that it  also works as a general Q&A or FAQ resource.

Based on the kind of questions and issues that have come up we’ve compiled this list of the top Knowledge Base articles for Licensing.

Article # Title
1012581 Not for Resale (NFR) licenses
2011011 Super Users and Procurement Contacts in My VMware
1003304 Distinction between License Administrator (LA) and Support Administrator (SA)
1010690 vSphere 4.0 upgrade options
1005522 Registering a License Key
1010533 Downgrading vSphere 4.0 License to ESX 3.5 version
2014346 Missing licenses in your My VMware account
1010839 Licensing ESX 4.0, ESXi 4.0, and vCenter 4.0
1005526 Ensuring validity of Subscription Contracts to receive product upgrades
1009166 Uploading the License file to the License Server
2006831 How to view license keys in My VMware

Also not to be missed is our Communities Roundtable podcast #44 which covers licensing.

New articles published for week ending 7/12/2009

VMware Data Recovery
Experimental support for File Level Restore in VMware Data Recovery(1011970)
7/7/2009
VMware ESX
VMotion CPU Compatibility – Migrations Prevented Due to CPU Mismatch – How to Override Masks for VirtualCenter 1.x(1011354)
7/10/2009
VMware ESX 4.0, Patch ESX400-200906401-BG: Updates VMX(1011776)
7/10/2009
VMware ESX 4.0, Patch ESX400-200906402-BG: Updates ESX Scripts(1011777)
7/10/2009
VMware ESX 4.0, Patch ESX400-200906403-BG: Updates VMware Tools(1011778)
7/10/2009
VMware ESX 4.0, Patch ESX400-200906404-BG: Updates CIM(1011779)
7/10/2009
VMware ESX 4.0, Patch ESX400-200906405-SG: Updates krb5 and pam_krb5(1011780)
7/10/2009
VMware ESX 4.0, Patch ESX400-200906406-SG: Updates sudo(1011781)
7/10/2009
VMware ESX 4.0, Patch ESX400-200906407-SG: Updates curl(1011782)
7/10/2009
VMware ESX 4.0, Patch ESX400-200906408-BG: Updates SCSI Driver for QLogic FC(1011783)
7/10/2009
VMware ESX 4.0, Patch ESX400-200906409-BG: Updates LSI storelib Library(1011784)
7/10/2009
VMware ESX 4.0, Patch ESX400-200906410-BG: Updates hostd(1011785)
7/10/2009
VMware ESX 4.0, Patch ESX400-200906411-SG: Updates udev(1011786)
7/10/2009
VMware ESX 4.0, Patch ESX400-200906412-BG: Updates esxupdate(1011787)
7/10/2009
VMware ESX 4.0, Patch ESX400-200906413-BG: Updates vmkernel iSCSI Driver(1012232)
7/10/2009
VMware ESX 4.0, Patch Release ESX400-200906001(1012370)
7/10/2009
Staged bulletins get cleared after remediation(1012480)
7/10/2009
ESX 4.0 does not use power management features on some servers(1012477)
7/9/2009
Cannot make an ASR backup of Windows(1011867)
7/7/2009
3D acceleration in ESX 4(1011942)
7/7/2009
Windows BSOD 0xC00002E2(1012195)
7/7/2009
Summary tab of vSphere Client displays a "Reboot Required" message after you patch an ESX/ESXi host(1012206)
7/7/2009
Disabling Hot Plugin capability in ESX 4 virtual machines(1012225)
7/7/2009
VMware ESXi
VMware ESXi 4.0, Patch ESXi400-200906401-BG: Firmware Update(1011856)
7/10/2009
VMware ESXi 4.0, Patch ESXi400-200906402-BG: Tools Update(1011857)
7/10/2009
VMware ESXi 4.0, Patch Release ESXi400-200906001(1012373)
7/10/2009
VMware ESXi 4.0, Patch Release and Cisco Nexus 1000V Virtual Ethernet Module (1012378)
7/10/2009
Host exits maintenance mode after applying tools bulletin using VMware Hostupdate Utility (VHU/VIU)(1012473)
7/10/2009
Removing VEM400-200906002-BG from an ESXi Host(1012478)
7/9/2009
VMware vCenter Converter Standalone
Using VMware Converter to convert Virtual Iron Machines to VMware virtual machines(1012460)
7/9/2009
VMware vCenter Server
ESX Server host settings required for environments with up to 80 virtual machines per host in an HA Cluster(1012002)
7/11/2009
VMware View Manager
View Composer agent initialization state error (-1000) when provisioning virtual desktops(1010206)
7/8/2009
Connecting to the Virtual Desktop from the VMware View client fails with the error: Virtual Desktop in not available(1010441)
7/8/2009
VMware vShield Zones
Securing vShield Zones CLI user accounts and the Privileged mode(1012479)
7/10/2009

Weekly it is

After hearing from some of your responses to our July 7th post asking whether you'd like to see this blog updated more often, we have decided to leave things as they are.

For those who were interested in a more frequent update, we have started posting updates daily via Twitter. You can follow us on Twitter here. http://twitter.com/VMwareKB

Going Daily

We are contemplating a change to provide more frequent updates to this blog, daily rather than weekly.

Any comments from you, our readers? Yay or Nay?

Any other comments/requests while you're here?