Choosing a network adapter for your virtual machine
Posted by Jeeva
on Thursday, February 4, 2010
·
Leave a Comment
http://kb.vmware.com/kb/1001805
VMware Interview Questions
Posted by Jeeva
on Wednesday, December 16, 2009
·
Leave a Comment
1. Will HA work if Virtual Center Server is down ?
2. What is DRS/HA/DPM/dvSwitch/FT/vApps/vSafe/vShields ? :-)
3. What are the situations which triggers vMotion automatically ?
4. What are the requirement for FT ?
5. What are the differences between ESX and ESXi ?
6. Which are the new features introduced in vSphere 4 ?
7. Which are the traffic shaping options available to configure ?
8. What is promiscuous mode ?
9. What makes iSCSI and FC diffrent ?
10. What is the format for iSCSI addressing ?
11. VM's Task Manager shows performance normal, But vCenter reports high resource utilization, what is the reason ?
12. What are the different types of memory management tricks available under ESX ?
13. What is vmmemctl ?
14. How we can list pNICs & status using command line ?
15. What is resource pool ? What are the use of it ?
More soon ...........keep watching ;-)
Storage Commands
Posted by Jeeva
on Friday, December 4, 2009
·
Leave a Comment
esxcfg-mpath -l
This command is very handy to see the storage setup. It lists following
WWNs
Storage Adapters
Adapter Identifier/WWN
Target Identifier/WWN
Transport Protocol
Strange Issue :-)
Posted by Jeeva
on Wednesday, October 28, 2009
·
1 Comment
I spent lot of time to find this.
Symptom of this issue is HA will not start VMs once Host fail.
http://kb.vmware.com/kb/1013013
esxcfg-vswitch
Posted by Jeeva
·
Leave a Comment
1. To the physical switch, attach only the network cable used for the service console.
2. List all of the network adapters from the ESX Server service console and locate the name of the vmnic# that has a link status of up.
esxcfg-nics –l
3. If vmnic0 has a link status of up, stop now. Otherwise, remove vmnic0 from vSwitch0.
esxcfg-vswitch -U vmnic0 vSwitch0
4. Associate the vmnic# that has a link status of up from step 2.
esxcfg-vswitch -L vmnic# vSwitch0
Use the following commands to determine where the ESX Server service console portgroup is (if you are doing a repair after changing physical NICs or similar activity, for example):
* esxcfg-nics -l
Determines which NICs are link up esxcfg-vswif -l to ensure Service Console is the port group, and the settings are correct.
* esxcfg-vswitch -l
Shows which vSwitch the service console port group is in.
* esxcfg-vswitch -L
Links the vmnic and service console together.
VC Agent Restart
Posted by Jeeva
·
Leave a Comment
1. To restart Management services
service mgmt-vmware restart
2. Restart VC agent on ESX host. vmware-vpxa is installed only when connected to VC
service vmware-vpxa resrtart
3. Restart Network on ESX host
service network restart