Introduzione

Event: Data Center Evolution, towards the Unified Computing System

DataCenterEvolutionWe attended this dutiful event in the beautiful Sheraton Golf2 Hotel in Rome. Below is the agenda:

VMWare

The speech by Sergio Cimino of VMware focused on the news of the new vSphere 4 platform (Cloud OS) and on the performance documented by impartial benchmarks. Of particular note are these new features.

vCompute

The new ESX 4.0 hypervisor enables VMs up to 8 VCPUs, 256 GB RAM, 20 Gb/s of networking, and over 200,000 IOPS with a latency of less than 20 microseconds. The ESX can scale up to 64 cores and 1TB of RAM on hardware.

Considering the following scheme:

We see that there are few applications that would be able to harness the power of modern servers, so the virtualization layer, the hypervisor, will become almost essential in the immediate future. An example of a benchmark run with SPECweb2005 on an HP Proliant DL585G5 machine with 16 Cores with the ESX3.5 hypervisor gave a result of 44,000, i.e. able to support 3 billion page views per day, i.e. 3 times the ebay traffic on a single server. A new DPM (Distributed Power Management) feature gives the infrastructure a much more GreenIT look as DRS (Distributed Resource Scheduling) can turn off underused physical servers on occasion and then turn them back on when necessary. The possibility of being able to change the number of VCPUs and VRAMs of each individual VM is also fundamental, obviously if the virtual operating system allows it, otherwise the blue/purple screen are a must.

vStorage

As far as the storage situation is concerned, there is a considerable optimization of space, it only takes up what is really used and the disk extension can be done hot.

vNetwork

On networking there are big news, thanks to the collaboration of cisco, the network becomes virtual at the datacenter level not only at the physical machine level, this avoids significant reconfigurations, or copies of configurations between all the ESX servers in the farm.

Automatisms and control

These new features are accompanied by the possibility of being controlled by means of automatisms programmed through workflows

Here is also the possibility that we have mentioned in the past of VM fault tolerance

Certainly a very useful feature in cases of strict business continuity, but it takes up twice as many resources as a single VM.

vApp & IT as a service

The possibility of being able to define applications (sets of VMs connected according to architectural logic) capable of self-describing allows you to be able to publish/migrate the vApp between Cloud infrastructure

Cisco

Nexus

Roberto Missana of Cisco focused his speech on Cisco’s new vision of Unified Computing, which we mentioned in a previous article . The rise of virtualization is increasingly leading to requests for networks with greater performance and available bandwidth, and 10G Ethernet is also starting to be seen on server motherboards. Cisco abandons the Infiniband path to follow 10GE and FCoE (Fibre Cloud over Ethernet). The Nexus family of products enables virtualization and consolidation of the IO. The nexus 1000v, an appliance for ESXs, is the distributed switch layer mentioned above

With the logic of the Unified Fabric, the servers for virtualization if previously required about 8 network cards, now two CNA (Converged Network Adapter) are enough, which allow all the protocols to circulate unchanged in ethernet frames, thus transforming the datacenters into “ethernet datacenters”.

The feature of fundamental importance for us is the possibility of gradually migrating the entire existing network without too much trauma by eliminating useless cables from time to time, converging everything in the ethernet network, with a huge reduction in TCO also considering the possibility of reallocating network specialists to other activities, or even reducing the staff, for the most drastic.

WaaS

Another fundamental topic for virtualization, since it allows an enormous centralization of the infrastructure, are the so-called network optimizers, or accelerators. Wide Area Application Services (WaaS) accelerates the performance of any application across the WAN, a boon for remote offices and desktop and application virtualization. A feature that we found extremely nice and useful is the possibility of having a Windows 2008 virtual server inside a WaaS, thus capable of being a local Domain Controller and / or print server etc for local users, thus allowing to eliminate all the remote server infrastructure.

Unified Computing

Cisco’s Datacenter Vision Is One System

The advantages are summarized in the following table:

NetApp

NetApp’s Roberto Patano emphasizes the efficiency and flexibility of NetApp’s storage systems, saving space, energy, redundancies, security, centralized management, and how a variety of multi-purpose storage systems can be managed as a single system. The fundamental rule of the strong offer policy of NetApp devices is that they all mount the same operating system (DataOnTap), with all the features already integrated, already active or can be activated through licenses. This makes it very easy to scale systems without having to do the slightest migration, just replace the controller with the most performing version in the worst case and nothing more.

Fundamental for NetApp is the snapshot, a term coined years ago by NetApp, all the features use this technology, this snapshot of the status brings with it speed and considerable advantages and no loss of performance.

Another element that makes great merit is the SnapManager for Virtual Infrastructure, a plugin that can be installed on vCenter that allows you to control the entire storage system directly from the VMware management tool. A comparison chart by Oliver Wyman shows that NetApp is much more efficient than its big competitors:

Finally, we show a Gartner chart on NetApp’s positioning in the market

Exit mobile version