Francis Dipietromaria WebLog

The future release of VMware vSphere, usually called 4.1, will bring many improvements in terms of performance, introducing new features, including VMotion Scalable, Wide VM Numa, Memory Compression and Storage I / O Control. Let's see what's new.

Alessandro Perilli has published an interesting article that highlights the new features that will introduce in the next release of VMware vSphere, whose version number (and perhaps also the date of issue) could align with that of View and thus become 4.5.

The first novelty of vSphere 4.1 is related to the scalability limits of the vCenter Server:

• 3000 virtual machines per cluster (against 1280)
• 1000 hosts per vCenter Server (against 300)
• 15000 registered virtual machines on a single vCenter Server (vs. 4500)
• 10000 virtual machines switched on simultaneously (vs. 3000)
• 120 Virtual Infrastructure Client competitors for vCenter Server (vs. 30)
• 500 hosts for vitual Datacenter (against 100)
• 5000 virtual machines to virtual data center (against 2500)

Now let's see some of the new features introduced with the release of vSphere:

• Scalable vMotion: vSphere 4.1 supports live migration of virtual machines 8 engine and contemporary management of this work is now able to support a throughput of up to 8Gb/sec link to 10GbE, ie up to three times faster.
• Wide VM Numa: the new NUMA scheduler is now able to secure improved performance on certain virtual machines with more cores than are available on NUMA nodes, with a performance improvement of up to 7%.
• Transparent Memory Compression: new technique of memory over-commitment can compress on the fly virtual pages that would otherwise be placed in the swap area on disk, bringing great benefits in terms of performance in the worst case (with a strong over-commitment) may be up to 25%.
• Storage I / O Control: vSphere 4.1 introduces the concept of quality of service prioritizing the queues of I / O to a single host or a cluster.

There are also a wide range of new features: support for 8Gb FC HBA, enhanced support for NFS, support for network adapters with TCP Offload Engine (TOE), as well as performance improvements for VMware View, in the creation and nell'accensione the virtual desktop.

For more information:

• Performance features of vSphere 4.1 is clear: Scalable VMotion VM Wide Numa, Memory Compression, Storage I / O Control and others

Other articles on similar subjects:

1. Performance Best Practices for VMware vSphere 5.0
2. VMware SRM 4.0 Performance and Best Practices for Performance
3. Performance Best Practices for VMware vSphere 4.0
4. VMware released a whitepaper on troublesooting performance of vSphere 4
5. VMware vSphere client makes for iPad
6. VMware vSphere 4.x: how to evaluate the use of memory
7. VMware vSphere 5 available for download