Category Archives: virtualized
Troubleshooting The vMotion migration failed because the ESX host were not able to connect over the vMotion network.
Today I will take you thought the troubleshooting for vMotion using CLI, If you have not done network troubleshooting on esx host you will find some really good esxi commands on this post. And if you are using a converged infrastructure its important to understand end to end connectivity especially if you have different vlans for each service like vMotion FT, Management traffic and VM-Traffic.
I build a brand new Data Center and after configuring the dv switch I decided to test the vMotion first and this is the error I saw on the first attempt the vm was stuck at 14 % and after a while it gave the below error message.
as shown below:
Migrate virtual machine error message
If you read the above error message you will find the IP’s of the host which I am migrating from and to.
for example lets consider the below two host this troubleshooting is done on esx-02. vmnic2 is FT vmnic3 is vMotion so I am comparing the mac address of booth the host on the ucs service profile to compare tht the vnic template has the right mac address and if they are connected to the right vlan. Read the rest of this entry
Most of the business today are choosing virtualization for Server consolidation, however along with that they get a lot more benefits:
- Reduce power and space requirement in data centres
- Fast application and service provisioning
- Improved manageability
- Business continuity
This clearly explains that the Businesses are focused to do server consolidation and reduction of power and space requirement which is the driving factors even today.
The types of virtualization do we currently have ? as discussed this on my previous post, I am going to compare them today.
According to surveys taken recently we have the following stats.
This clearly explains us that most of the Virtualization technologies are been used today, however still the most popular one is Server virtualization. Never the less this is taken on a different level today to get the Desktop virtualization for the end users companies like Citrix and VMware have got a lot of powerful products for this. Read the rest of this entry
As we all know today the main priority is cost savings in every organizations. Keeping this in mind majority of companies are seeking alternative method of saving cost.
One of the way which has become most popular today is consolidating IT infrastructure. That is by getting rid of old, crapey hardware that has been running for donkeys years! which keeps braking every fortnight. Also another concerning factor is space in the Data Center are already filled up, and companies cannot invest in setting up a new data centres, as it will involve huge investments.
So, most of the companys are looking into different types of virtualizations. They are 3 types of virtualizations which are avalable today.
- Hypervisor contains the Virtual Machine Monitor (VMM)
- Guest OS unchanged, Host can be any kind of hardware
- Guest uses generic device drivers
Hardware Virtualization (a.k.a. Hardware Assisted)
- VMM moved to hardware
- Requires VT hardware
- Guest OS unchanged, uses generic device drivers Read the rest of this entry
Last Friday I have virtualized my Windows XP Laptop, before I start telling you guys, how its done I think its worth mentioning why I need to do it?
We normal Virtualize the physical server that are very old and start getting faults very often or they are too big for us to keep in our data centres.
I have dual booted my laptop with Windows 7 ’64 bit’ edition, Which works brilliant. However Win7 is as this is 64 bit version of Windows I had to work around quite a few applications which I use on daily basis to get them work on Win7.
However the most important software which I need to work from home is the vpn client provided by CISCO. The VPN client is yet to be rewritten for Win ’64 bit’ CPU. As a result I could not use Win7 to work from home, as I was unable to install VPN client to deil.
Now you can guess why I virtualized my Windows XP OS. Read the rest of this entry