VMware and competitor

Posted on April 23rd, 2009 in Hyper-V, vSphere, Xen | 1 Comment »

I was just came back from Sime Darby Convention Centre – HP ProLiant G6 Servers Launch event and VMware competitor “Citrix” and “Microsoft” representative talked about Microsoft Hyper-V and Citrix Xen hypervisor. Anything interesting? Seriously, both of them talked about marketing bull shit! If I’m have not try VMware, Hyper-V or Xen before, probably I may interested with the presentation.

If you’re looking at technical point of view, personally I think VMware competitor is few year behind VMware vSphere. Check out more detail about VMware vSphere 4 Cheat Sheet posted by Jason Boche.

Referring to costing, I don’t agreed with what Citrix presented during the event this morning. You’re always try to tell customer pay if you need it. What are you talking about? Are you trying to tell Enterprise customers don’t use HA or don’t use those features provided? How about Microsoft Hyper-V cost comparison?
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VMware Server 2 Vs VMware Workstation

Posted on November 17th, 2008 in Industry News, Virtualization | 3 Comments »

As VMware 2.0 is officially launched and final release since October 2008, here I would like share some preview related to the new VMware Server 2.0.

VMware Server 2.0 is free and open source version, which is different with enterprise ESX 3i which also a free version from VMware. In term to utilize VMware server 2.0, you will require to have a Windows or Linux install on your machine or server, and install VMware Server 2.0 on top of the operating system to enable the hypervisor to be executed. This is different with ESX 3i which is not require any Operating System to be installed.

We may see this as a competitive product with VMware Workstation 6.5 which recently launched. If you ask my opinion, I will say that both are on different product range. VMware Server 2 can be consider as alternative to the business users, who may not need the advance technology & features to simplify their IT environment with minimal administration require. This product is more suitable for the Small Medium Enterprise users which may not have a Data Center for their working location. I will say that a Junior IT professional will easily able to manage the VMware Server and take the opportunity as a entry level for Enterprise Virtualization with VMware Server 2. Besides that, it does provide opportunity for every users to have virtualization in place for their business to provide better ROI in term of hardware investment and utilization.

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My Personal Experience about Citrix XenServer 5.0

Posted on October 8th, 2008 in Virtualization, Xen | 25 Comments »

Yesterday Craig mentioned about 8 VCPU per VM on Citrix XenServer 5 is really a good stuff from Citrix and I must admit that.

I did a quick test and I would like to share my personal review about Citrix XenServer 5.0:

Personally I think network speed is fast compare to VMware ESX. I have a physical 1Gbps NIC network speed and I can get 2Gbps network speed after install XenTools on Windows 2008 server but require 2 times reboot(SuSE Linux require 1 reboot). Anyway VM guest shutdown and reboot process is faster than VMware ESX.

Citrix XenServer

I was try to install SuSE Linux 10 using 4 ISO CD (both NFS or CIFS), the Citrix XenServer always give me an error “The VM rejected the attempt to detach the device xxxxx refusing to close” when switch ISO CD1 to ISO CD2. You have to extract 4 ISO CD into one single location to make it work or copy ISO to local storage(provider you have enough local disk space).

Citrix XenServer

The enterprise product should not have similar issue and this is not make sense at all.

Citrix XenServer

Anyway, you can try alternative way using “Install URL” instead of using ISO Image once you have extract ISO CD into single folder on your web server.

Install URL: http://xx.xx.xx.xx/inst/10/32/SP2/ALL
Advanced Boot OS Parameters:
console=ttyS0 xencons=ttyS hostip=xx.xx.xx.xx/24 gateway=xx.xx.xx.xx dnsserver=xx.xx.xx.xx

Please make sure your have correct IP, gateway and DNS setup properly else you will getting error during installation.

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8 Vcpu per VM – VMware is behind the competitor

Posted on October 7th, 2008 in Hardware, Industry News, Virtualization, Xen | 5 Comments »

I had just setup a brand new Citrix Xensource hypervisor server today for evaluation purpose. The really impress thing that attracted myself is the 8Vcpu per VM be able to configure which over take ESX servers 3.5 update 2 today. I know that VMware has their roadmap in the future to release the 8vcpu to support processing power hungry application to be virtualized in the future.

But if we compare the technology today, I believe most of us will see that from virtual cpu perspective, VMware had been quite slow respond on that. If you do spoke to most of the VMware representative or consultant, they always told you not to allocate more than 1 Vcpu if not required.

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Xen 3.3.0 is available for download

Posted on August 26th, 2008 in Industry News, Virtualization, Xen | No Comments »

According to Heise Online, the new free XEN version 3.3.0 is now available for download.

Basically the new version come with 2.6.18 kernel version of Linux as the host system.

The Xen 3.3.0 features including:

  • Power management (P & C states) in the hypervisor
  • HVM emulation domains (qemu-on-minios) for better scalability, performance and security
  • PVGrub: boot PV kernels using real GRUB inside the PV domain
  • Better PV performance: domain lock removed from pagetable-update paths
  • Shadow3: optimisations to make this the best shadow pagetable algorithm yet, making HVM performance better than ever
  • Hardware Assisted Paging enhancements: 2MB page support for better TLB locality
  • CPUID feature levelling: allows safe domain migration across systems with different CPU models
  • PVSCSI drivers for SCSI access direct into PV guests
  • HVM framebuffer optimisations: scan for framebuffer updates more efficiently
  • Device passthrough enhancements
  • Full x86 real-mode emulation for HVM guests on Intel VT: supports a much wider range of legacy guest OSes
  • New qemu merge with upstream development
  • Many other changes in both x86 and IA64 ports

Download Xen 3.3 datasheet

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