Virtualization: The Times, They Are a Changin’
Changing the Way IT Manages Change
Bob Dylan said it best: “The times, they are a changin’. While he may not have been talking about virtualization (hey, you never know), the saying rings true nonetheless.
There’s no question that virtualization has redefined IT. In his blog, Chuck Hollis outlines a comprehensive discussion on the forces at work with virtualization and how it’s changing the face of information. If virtualization In a physical, environment, an application or server team typically puts in a request to the storage team for new capacity to meet the needs of a new application installed on one or more physical servers. They usually receive some guidance or have their own insight into the service-level requirements, and then provision storage in accordance with those requirements. Once the capacity is provisioned and configuration best-practices validated, the configuration usually doesn’t change all that much.

Virtualization Changes Everything
is changing everything, it’s also going to change the way things are managed. Take storage management.
With virtualization, it’s truly a whole new ballgame. Capacity is often allocated to an ESX server (with VMware) or cluster of ESX servers in large chunks called “datastores.” The application or VMware team then allocates capacity to meet the needs of new applications. This provides a more versatile environment where compute and storage resources are allocated on demand. What used to take a day or two can now be performed in a matter of minutes. By moving the allocation of storage for each new application from the storage team to the application for VMware team, the end-to-end process of provisioning is significantly streamlined.
But this also introduces new challenges to the storage team. They often lose sight into how capacity is being applied to new applications and if the best-practices required to ensure service levels are being met. In addition, technologies like VMotion and Storage VMotion enable the VMware or application team to dynamically move storage to meet changing business conditions.
This places an increased burden on the storage team to ensure the configuration best-practices are met in order to consistently meet service levels.
Harnessing Change in Virtualization
A recent EMC survey found that approximately 70% of its customers use Storage Resource Management (SRM) tools like Ionix ControlCenter to visually collect and validate configuration information when planning and executing changes to their storage environment. Another 15% use automated tools ranging from home-grown solutions, to Storage Area Network (SAN) vendor applications, to SRM tools. And 15% use just trial-and-error.
A separate EMC survey found that over 50% of its customers still use spreadsheets to record changes to their environment!!! These manual processes have proven to be time-consuming and error-prone. It’s no wonder that Enterprise Strategy Group found that more than 50% of all SAN outages are due to improper configuration.
The more dynamic and fluid environment introduced by virtualization creates a critical “tipping point” where manual processes for validating compliance with configuration best-practices begin to break down. What is required is an automated method of end-to-end discovery and best-practice validation.
With this in mind, EMC recently introduced EMC Ionix Storage Configuration Advisor 2.0. The solution leverages agentless technology to discover the end-to-end configuration of the storage infrastructure. It discovers all physical and logical relationships from virtual guest to target LUN validating compliance with industry or your own best-practices. It tracks policy compliance at the guest level to help ensure application service levels are met as VMotion and Storage VMotion move resources to meet changing business conditions.
Ionix Storage Configuration Advisor is one of a new set of tools helping customers harness the high rate of change in virtualized environments. The solution gives customers an automated tool to help maintain visibility and control as virtualization changes the way your organization manages changes to the storage environment. As virtualization continues to change the face of the data center and companies accelerate their journey to the private cloud, automated change management solutions will grow in importance. It will be tools like Ionix that help companies get a handle on these changes.
Dylan was right about the changing times. There will always be change. It’s how we prepare for and deal with these changes that will determine whether or not we can harness the power that virtualization brings. Who knew Bob Dylan knew so much about storage????
Would love to know what you think. Please post your comments so we can keep this conversation going!!!
Kevin

leverage automation to take the costs out of IT, deliver IT as a true service and accelerate the journey from physical IT to virtual IT to the cloud.
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