Skip to main content

Virtualization and Storage: Best practices

In today’s production data center, networked storage is at the center of everything, and it is one of the critical elements to consider when rolling out applications on VMware or any other platform. In development and test environments, VMware applications are typically run with local disk or direct-attached RAID storage. In production data centers, Virtual Machines (VMs) need to work with enterprise-class SAN or NAS — an infrastructure that is shared across a range of applications and workloads. Storage is ultimately about input/output (I/O), and it is important to make sure that the I/O workloads that are required by the server domain can be handled by all of the elements of the storage domain, including the host bus adapter (HBA), storage fabric and the storage array. One of the main causes of poor performance in both virtualized and traditional server environments is a mismatch between the front-end and the back-end. Frequently, contention for shared storage resources such as RAID groups causes I/O bottlenecks that result in queuing backlogs and poor end-to-end response time. Ultimately, this impacts the business application and the end-user. In a virtual world, this scenario is more complex. While it may be possible to run more virtual machines on a given server, it is also possible to go too far and overload the storage layer, resulting in negative unintended consequences. One of the most important things to understand is that enterprise storage is increasingly virtualized along with servers; as it is also a pooled, shared resource. A key to ensuring VMware application success in these environments is making sure that front-end workloads are matched to back-end storage capabilities, and to monitor these relationships consistently.

Best Practices
Here are five best practices for ensuring successful VMware projects on enterprise-class storage:
  • Establish a “cross-domain” management orientation.
  • Use “infrastructure response time” as a key metric.
  • When there are VMware performance issues that are difficult to diagnose, look for contention and contention-based latency in the storage layer.
  • Strive for “best fit” of workloads to storage resources.
  • Work toward infrastructure performance service-level agreements (SLAs).



See what Tom, VP Akkori, has to say about those steps.

Comments

Popular posts from this blog

DeepLearningTrucker Part 1

Avastu Blog is migrating to IdeationCloud.com; 1st Jan 2009 live

YOU DON'T HAVE TO DO ANYTHING. WITHIN 2 SECONDS YOU WILL BE REDIRECTED TO THE NEW HOME OF AVASTU BLOG. PLEASE DO UPDATE AVASTU BLOG'S URL to : http://www.ideationcloud.com on your website.

I will send out emails personally to those who are using my link(s) on their sites.

Thanks much for your co-operation and hope you enjoy the new site and its cool new features :-)




Not like the site is unlive or something..on the contrary, its beginning to get a lot of attention already. Well most of the work is done, you don't have to worry about anything though:

What won't change

Links/Referrals: I will be redirecting the links (all links which you may have cross-posted) to IdeationCloud.com - so you don't have to do anything in all your posts and links. Although, I would urge however that you do change the permalinks, especially on your blogs etc yourselfThis blog is not going away anywhere but within a few months, I will consider discontinuing its usage. I won't obviously do …

Cloud Security: Eliminate humans from the "Information Supply Chain on the Web"

My upcoming article, part - 3 data center predictions for 2009, has a slideshot talking about the transition from the current age to the cloud computing age to eventually the ideation age- the age where you will have clouds that will emote but they will have no internal employees.

Biggest management disasters occur because internal folks are making a mess of the playground.

Om's blog is carrying an article about Cloud security and it is rather direct but also makes a lot of sense:

I don’t believe that clouds themselves will cause the security breaches and data theft they anticipate; in many ways, clouds will result in better security. Here’s why: Fewer humans –Most computer breaches are the result of human error; only 20-40 percent stem from technical malfunctions. Cloud operators that want to be profitable take humans out of the loop whenever possible.Better tools – Clouds can afford high-end data protection and security monitoring tools, as well as the experts to run them. I trust…