Detailed Comparison Virtualization Server [Citrix Xenserver vs MS Hyper-V vs Red Hat Virt. vs Vmware vShpere]

Posted by Ahsan Tasneem | 4:41 AM | , , , , , , | 2 comments »

Virtualization is now viewed as viable for companies of all sizes. VMware leads the market by a longshot but there are a number of vendors to choose from.
We have compared the leading virtualization vendors in the matrix below
Overall, VMware leads the group of vendors, which included Citrix Xen Server; Microsoft Windows Server 2008 Hyper-V R2; Red Hat Enterprise Virtualization 2.2 and VMware VSphere.
But the gap is closing fast. All are viable in a production environment. The largest of companies still see virtualization as the best option but small and mid-sized companies have options to choose from as seen in this feature chart below


Virtualization Server Comparison
Features
Citrix
Xenserver
5.6.1
Microsoft
Windows
Server 2008
 Hyper-V R2
Red Hat
Enterprise
Virtualization
 2.2
Vmware
vSphere
4.1
Bare-metal hypervisor
Yes
Yes
Yes
Yes
vCPUs per host
512
512
512
512
vCPUs per VM
8 Win /32
 Linux
4
8
16
RAM per host
512 GB
1 TB
1 TB
1 TB
RAM per VM
32 GB
64 GB
256 GB
255 GB
Memory
ocercommitment
Yes
Yes
Yes
Yes
Page sharing
No
No
Yes
Yes
Virtual NICs
7 / guest
8 synthetic,
4 emulated
8 / guest
10 / guest
VLAN Supports
Yes
Yes (but with
 separate guest
 config)
Yes
Yes
Guest OS Support
CentOS, Debian,
Redhat, Suse, Windows
Red Hat, Suse,
Windows
Red Hat,
Windows
Most
x86 OS
Live Migrations
Yes
Yes ( requires
windows
clustering)
Yes
Yes
Live Storage Migrations
No
No (but can
automate with
VM suspend)
No
Yes
Load Balancing
Yes
Yes
Yes
Yes
High availability
Yes
Yes
Yes (but not for
complete host
failure)
Yes
Maintenance mode for
hosts
Yes
Yes
Yes
Yes
Templating and cloning
Yes
Yes
Yes
Yes
Thin provisioned VM
disks
Yes
Yes
Yes
Yes
VM import / export
Yes
Yes
Yes
Yes
Snapshots
Yes
Yes
Yes
Yes
Remote console
Yes
Yes
Yes
Yes
PXE boot for VMs
Yes
Yes
Yes
Yes
Shared storage
Yes
Yes
Yes
Yes
Storage multipathing
Yes
Yes
Yes
Yes
Shared resource pools
Yes
Yes
Yes
Yes
API
Yes
Yes
Yes
Yes
Microsoft is VMware's closest competitor as it can be seen in the comparison.
Among the three challengers, Microsoft Hyper-V comes closest to VMware vSphere in overall management functionality. However, whereas VMware, Red Hat, and Citrix combine virtualization host and VM management in a single management server, Microsoft spreads the functions across multiple System Center tools. Hyper-V's advanced capabilities come at the cost of additional overhead, configuration, and complexity for administrators.
That last sentence sums up the challenges to those considering virtualization. It's no longer the cost that should keep customers from adopting virtualization. Instead, it's the expertise required that should become one of the biggest considerations.

2 comments

  1. Ardianto // December 8, 2011 at 6:13 AM  

    Soon, the os vendor will own its virtualization and beat the propietary only vm services, because its being more cheaper and support in the future...

  2. Anonymous // December 8, 2011 at 9:09 AM  

    Agree with ardianto but i think companies will not look into money the one who provides better features, support and stability will be the leader.

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