Friday, February 26, 2010

Working with Blade4:Does VC support LACP ?

Does Virtual Connect support EtherChannel\802.3ad\SLB on the downlinks to the server NICs? Can I use LACP port trunking on the server NICs connected to Virtual Connect?

No, Virtual Connect does not support EtherChannel\802.3ad on the downlinks to server NIC ports.

Thursday, February 25, 2010

Working with Blade 3:Configure vmotion on VC without using external network

Objective of this post is to configure vmotion without using “Shared Uplink Sets”. Other term not using external switch . Traffic for the vmotion will be confined to  enclosure .

1. Define network  under  “Ethernet Networks” but do not associate with  “Shared Uplink Sets”


2. When we define the network it should be like this


3. Once this is done then assign this Network to the server profile. You can dedicate one or two NIC which will be used for vmotion . How to find out which one is dedicated  for vmotion ? Very simple on ESX side nic numbering will be in the same order as you assign . For example is LOM:1-c in Bay1 has been assigned to vmotion network which will be 5th from TOP. ESX will show as vmnic4 which is correct as numbering for ESX start from vmnic0 onwards


4. Once you do above you cannot have any other network on that vSwitch. This vSwitch will be dedicated one. You can assign any IP but it should be that other vmotion network on other ESX should be on same network.



Wednesday, February 24, 2010

Lesson learned while trouble shooting PSOD.

I was working with VMware support and was not able to generate vm-support log. It use to hang after creating folder but not able to tar it.

1. To delete folder and nested folder within without confirmation use

rm – rf

2. Under /root/old_cores you will find dumps created for PSOD , which is required for analysis

-rw-r--r-- 1 root root 3987551 Nov 5 2008 vmkernel-zdump-110508.02.35.1

-rw-r--r-- 1 root root 16883365 Feb 18 13:13 vmkernel-zdump-021810.13.13.1

-rw-r--r-- 1 root root 262144 Feb 19 12:23 vmkernel-log.1

-rw-r--r-- 1 root root 262144 Feb 23 02:17 vmkernel-log.2

3. less /proc/cpuinfo

4. To read vmkernel-zdump-110508.02.35.1

vmkdump -l vmkernel-zdump-021810.13.13.1. This create file

created file vmkernel-log.4

Log wrapped

The log is like this

less Ri vmkernel-log.4

5. dmidecode|less is the other command to manage the information

6. Very informative KB

Working with Blade2:How to use VC Flex-10 with vmotion

I wanted to use vmotion using virtual connect by selecting “Private  Network”. We planned to use VC switch itself for the vmotion and not going beyond. But looks like it we can not achieve it and we have to use traditional way of VLAN tagging . I will talk about how to use VST in my next blog.

Wednesday, February 17, 2010

Working with Blade-1:Changing name of the Enclosure and Rack Name

Changing name of the Enclosure and Rack Name:

1. Login to Onboard administrator with user name and password

2. Go to Enclosure Information – Information

Thursday, February 11, 2010

Is Google gmail running VMware virtual machine ?

Yes I am back after a long time and the obvious reason. I wanted to share something , I was browsing my gmail and guess what happened. Google was running on VMware virtual machine . You don’t believe it ? See below ..