Archive for the ‘VMware vSphere 5’ Category

VMware ESXi Patch Tracker – support lifecycle

Samstag, Januar 26th, 2019

vmware_logo.jpg   VMware ESXi Patch Tracker

VMware vSphere – hardware features available with virtual machine compatibility settings

Dienstag, Februar 27th, 2018

VMware vSphere – virtual machine hardware versions

Donnerstag, Januar 25th, 2018

VMware vSphere Client 5.x/6.x – Download URLs

Mittwoch, November 22nd, 2017

vmware_logo.jpg   Download URLs for VMware vSphere Client

VMware vSphere ESXi/ESX 4.1, ESXi 5.x, and ESXi 6.0 – support USB device passthrough to a virtual machine

Dienstag, Juli 19th, 2016

vmware_logo.jpg   VMware Knowledge Base (KB)


VMware vSphere 5.x – host experiences a purple diagnostic screen mentioning E1000PollRxRing and E1000DevRx

Donnerstag, März 17th, 2016

vmware_logo.jpg  Use the VMXNET3 virtual adapter and reduce the usage of the E1000e series adapter

Identify the virtual machines that use E1000e family for virtual network interfaces

# grep -s -i e1000 /vmfs/volumes/*/*/*.vmx

Disabling Receive Side Scaling (RSS)

C:\ netsh int tcp set global rss=disabled
C:\ netsh int tcp set global chimney=disabled

VMware vSphere – to make the physical NIC blinking

Mittwoch, Juli 16th, 2014

vmware_logo.jpg   If you want to identify the physical NIC which matches up to the virtual NIC in your VMware vSphere Server – you can use ethtool

ethtool -p <devicename> <time-in-seconds>

e.g. to make vmnic0 blink for 60 seconds use

ethtool -p vmnic0 60


VMware vCenter Operations Manager (vCOPS) – analyses millions of metrics from vSphere and existing monitoring tools to learn the behavior of your infrastructure

Donnerstag, März 6th, 2014

VMware vSphere 5.x – a purple screen of death (PSOD)

Donnerstag, Dezember 5th, 2013

vmware_logo.jpg   If you are using E1000 adapters in your virtual machines you should take a look at KB 2059053. If the operating system is using Receive Side Scaling (RSS) it is possible that your VMware vSphere 5.0/5.1/5.5 host will die with a purple screen of death (PSOD) with errors containing E1000PollRxRing and E1000DevRx


As long as there is no patch for this bug the only workaround is to use the VMXNET3 adapters instead of the E1000. If you really want to disable RSS in your W2k8/W2k12 Server operating System you can use this command

netsh int tcp set global rss=disabled

VMware vSphere vCenter Single Sign On (SSO) – password reset

Dienstag, Juli 2nd, 2013

vmware_logo.jpg   During the installation of the Windows vCenter Single Sing On (SSO) service you must provide a password for the SSO admin user named “admin@System-Domain”. If you forgot the master password and have no other admin account there is no supported way to reset the SSO Password – you need to reinstall your VMware vSphere vCenter environment


VMware vSphere 5 Clustering Technical Deepdive – do you want a free Kindle copy

Mittwoch, Juni 5th, 2013

vmware_logo.jpg   A free Kindle copy of the VMware vSphere 5.0 Clustering Deepdive – today and tommorow, Thursday June the 6th you can download the Kindle copy for free


Oracle Database 11g Release 2 – Support Status for VMware vSphere Virtualized Environments

Dienstag, März 12th, 2013

oracle_logo.jpg   Oracle has not certified any of its products on VMware virtualized environments. Oracle Support will assist customers running Oracle products on VMware in the following manner: Oracle will only provide support for issues that either are known to occur on the native OS, or can be demonstrated not to be as a result of running on VMware. If a problem is a known Oracle issue, Oracle support will recommend the appropriate solution on the native OS. If that solution does not work in the VMware virtualized environment, the customer will be referred to VMware for support. When the customer can demonstrate that the Oracle solution does not work when running on the native OS, Oracle will resume support, including logging a bug with Oracle Development for investigation if required. If the problem is determined not to be a known Oracle issue, we will refer the customer to VMware for support. When the customer can demonstratethat the issue occurs when running on the native OS, Oracle will resume support, including logging a bug with Oracle Development for investigation if required

NOTE: For Oracle RAC, Oracle will only accept Service Requests as described in this note on Oracle RAC and later releases

VMware Knowledge Base – Broadcom 5719/5720 NICs using tg3 driver becomes unresponsive and stops traffic

Mittwoch, November 7th, 2012

vmware_logo.jpg   When a system uses the tg3 driver with 1 Gb NICs the logs report excessive NetQueue messages similar to:

… cpu14:2091)<6>tg3 : vmnic3: RX NetQ allocated on 1
… cpu14:2091)<6>tg3 : vmnic3: NetQ set RX Filter: 1 [00:50:56:7f:96:94 0]
… cpu12:2091)<6>tg3 : vmnic3: NetQ remove RX filter: 1
… cpu12:2091)<6>tg3 : vmnic3: Free NetQ RX Queue: 1 

This issue is seen to occur on Broadcom 5719/5720 NICs where the NICs stop functioning or responding when used for NFS or virtual machine network traffic

To work around this issue turn off NetQueue

# esxcli system settings kernel set -s netNetqueueEnabled -v FALSE
# reboot

VMware Certified Compatibility Guide – Knowledge Base

Montag, September 24th, 2012

vmware_logo.jpg   VMware Certified Compatibility Guide


Marvell DragonFly NVCACHE – 10-100x Higher IOPS and Lower Latency

Samstag, September 22nd, 2012

marvell_logo.jpg    Marvell DragonFly NVCACHE is a write-back write-thru and read I/O cache that works seamlessly out of the box