Tuesday, March 2, 2010

Working with Blade5: Blade name does not appear while Profile assignment

When you assign serer profile to the blade it does not say that it has assigned  following server to the following profile rather it says Bay1/2 …

It would have become easy if it would have update blade name

Event ID 7024: VMware VirtualCenter Server service terminated with service-specific error 2 (0x2)

Event Type: Error

Event Source: Service Control Manager

Event Category: None

Event ID: 7024

Date: 3/2/2010

Time: 2:33:37 AM

User: N/A

Computer: ABCDD

Description:

The VMware VirtualCenter Server service terminated with service-specific error 2 (0x2).

This was the error which I was getting whenever I tried to start "VMware VirtualCenter Server".

  1. I checked SQL ODBC connection and that was running fine.
  2. I tried playing with license server thinking that license might have caused this but no success.
  3. I then checked SQL for following error

Event Type: Failure Audit

Event Source: MSSQLSERVER

Event Category: (4)

Event ID: 18456

Date: 3/1/2010

Time: 9:00:00 AM

User: NT AUTHORITY\SYSTEM

Computer: ABCDDDD

Description:

Login failed for user 'NT AUTHORITY\SYSTEM'. [CLIENT: <local machine>]

This one also fixed but still I was not able to start services. Finally I stopped IIS service on VC box and then tried to start VC service this worked .

Source and credit : Google and this link

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”

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

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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

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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.

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5.

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

http://kb.vmware.com/kb/1005184