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ESXi
Jul 29

If you haven’t explored server virtualization, there is no better time! VMWare has announced that ESXi is now free! (CHEAP!)

Q. ESXi only supports a single VM, what is the advantage of this?

A. Portability & Flexibility. Since the VM isn’t tied to the hardware, it is ultimately transportable. Have a test server and production server? You can copy the REAL production VM to the test server. If you’re developing, you can copy the VM, archive it for Configuration Management purposes and promote the test environment to production with little risk for surprises due to differences in configuration!

You can get more out of less hardware. For development, your test hardware can be an Oracle 11g database server running RHEL on Monday, a JBoss App Server on SUSE on Tuesday, and an Oracle RAC instance on Oracle Enterprise Linux for emergency scalability on Wednesday, and an impromptu Backup Domain Controller on Windows Server 2008 on Thursday. The same server is the hardware you need when you need it!

Best of all, the VMs you create on ESXi are completely compatible with any of the VM Servers VMWare offers – Port it right into a ESX Server BladeServer or the like, when you are ready.

Q. What about Oracle Licensing on VMs?

A. Oracle does not officially support their products on any VM Server except Oracle VM – Their licensed version of Xen. However, I’ve been running Oracle on ESX on a wide variety of hardware implementations and have yet to experience one problem. Licensing a Virtualized Oracle Server can be expensive on a consolidated VM Server, as you must pay for every socket, whether you are using it for the Oracle Server VM or not – But on an ESXi hypervisor, with single VM setup, the cost is the same as if you put it on the physical server!

Q. What about Microsoft’s Hyper-V – That is free too!

A. Microsoft’s Hyper-V isn’t as ‘free’ or ‘Hyper’ as they would like you to believe. ESXi is free – It sits on the Hardware, requiring no foundational OS. MS Hyper-V requires you to purchase and install Server 2008 to run Hyper-V ($1000-$6000 depending on the flavor). Plus, you get all the overhead of having Microsoft Server 2008 as disk Sspace, memory, and processor overhead!

Then there is the matter of Hyper-V’s supported OS list It supports Windows, Windows, Windows, and SUSE.

Hyper-V space requirement: 10Gb MINIMUM. ESXi: 32Mb

Hyper-V max processors per host: 4. ESXi Max processors per host: 8

Etc…

In short, If you haven’t tried virtualizing your servers, now is a great time (It is always a great time to save your client/company/self equipment funds!). Now, you have nothing to lose!

Brian Fedorko

Jul 24

Big Blue

IBM announced that their System X and BladeCenter offerings are now “integrated with VMWare ESXi 3.5”. “Wow!”, you may say to yourself “IBM must be considering a close partnership with VMWare to design the ESXi Hypervisor right into their server’s chipset.” And you would be partially right, VMWare and IBM are happily partnering, as virtualization is becoming a huge selling point for BladeServers. But how IBM implemented a chipset integration is a lesson in out-of-the box thinking that is valuable to everyone.

The answer is “USB Flash Memory Stick Drive

The miniscule ESXi (32Mb!!!) fits nicely on a Flash drive too small to even sell today. Stick this on the motherboard’s internal USB drive and congratulations, you now have integrated virtualization right into your Server’s chipset. The simplicity of execution is simply brilliant – And IBM’s customers will invariably benefit from the flexibility virtualization offers with no increase in price due to R&D/redesign/retooling/etc.

Brian Fedorko