Archive for August, 2008

Monitoring features from ESX 3.5 update 2

Posted on August 29th, 2008 in Virtualization | 2 Comments »

Latest version of ESX 3.5 update 2 had been impressed with the advance monitoring which will ensure if you had your VM hang up from the Operating System perspective, it will force the VM to be restarted due to the heartbeat connection is lost. This has been some good features and effort from VMware I will said.

At the same time, I will say this is not fit to my environment. Maybe you guys had experienced the similiar situation with the patches release from ESX always Require VMtools to be upgraded. I am still concerning why it require VMtools to be upgraded for any minor or major update from the ESX release. This actually had caused us a lot of time to negotiate with the down time to ensure the VM are patch with the latest version of VMtools. Again, when the VMtools is not updated, the heartbeat will be inconsistent of not detected.

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VMware Workstation 6.5 RC1 Available for Download

Posted on August 28th, 2008 in Announcement, Industry News, Virtualization | No Comments »

I had just refreshed my VMware workstation 6.5 Beta today with the latest release from VMware.

Here is the URL you can register and immediate getting the serial key and allow you to download the installation source for a try. More features had been include in 6.5 prior to VMware workstation 6.0

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Linux Systems Being Hit By SSH-Key Attacks (ESX)

Posted on August 28th, 2008 in Announcement, Industry News, Virtualization | No Comments »

Latest news that Linux had been potentially attack by some of the method it use to steal the SSH key to gain root access to the potential system.

According to US-CERT, the attack appears to rely on stolen SSH keys to gain access to a system. It then uses a local kernel exploit to gain root access, whereupon it installs the “phalanx2” rootkit, derived from the older “phalanx” rootkit.

Since the ESX server is running on Linux kernel, I will strongly recommend we should keep an eye on the ESX host to ensure this is not impacted. That could become a serious impact to the virtualization.
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VMware Lab Manager VS Virtuozzo

Posted on August 27th, 2008 in Industry News, Virtualization | No Comments »

Lab Manager from VMware had been final released weeks back. Couple of interesting technology that I found out as it look similar to the German base Technology Virtuozzo.
As virtuozzo claim it as the Virtual Private Servers which share the same operating system, library files from the OS and template base technology which able to deploy a VM within or less than a minute. Obviously, Lab manager is not really the new technology in the market to provide this as I had experience with Virtuozzo since 2 years back on this. Of course, VMware did the best marketing job to reach the customer worldwide.

Lab manager provide version control and multiple sets of Server with Fence technology (NAT) and IP mapping to prevent hostname and ip conflict if you require to connect to the production network for your development and test environment.

IP mapping is some cool stuff example you may have 2 different VM with same IP as in the Lab manager, but both of different version of sets of VM which link from the original image, there will not conflict to each others while you enable the connection to the production network, that was due to the Fence, whick the connected to a seperate virtual NAT network, and it map to a different production IP to reach the production network. In order to do this, is highly recommend to reserve a pool of IP for lab manager to be auto assign when needed.

Virtuozzo could be categories as a different approach in VM technology as some of the guys call it as VPS, virtual private servers. It share the same OS base, library file and etc. Central Server management able to be done on the management server, and it provide flexibility to manage the VPS online most of the time. Virtuozzo is more towards the template base technology as you need to have the template ready when you need to deploy the specify middle ware or applications.
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How to enable ESX host memory to utilize more than 64GB physical Memory

Posted on August 27th, 2008 in Tips, Virtualization | No Comments »

Many of you may had experience difficult time to figure out what had been went wrong when you had ESX host which have more than 64GB physical memory. When I 1st reported this to VMware nearly a year ago, I had to wait for 3 days before VMware support team come back to me about the solution below.

You may need to change the setting in 1 of the vmkernel setting from your virtual center to the specify ESX host.
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