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Dell EqualLogic FS7500 – Unified block and file storage for virtual workloads

Introduction

Today datacenter administrators in businesses of all sizes are facing an efficiency challenge. Due to the

rapid growth of collaboration and e-business applications and regulatory compliance requirements,

server and storage needs are continually growing while IT budgets are either stagnant or shrinking. To

address the server side efficiency issues, virtualization solutions, such as those from VMware®,

Microsoft® and Citrix® where resources of a single physical server are shared across multiple virtual

machines, deliver high asset utilization and eliminate the problems that result from having to maintain

and manage large numbers of underutilized physical servers. As virtualized application workloads

expand to more than a few physical servers, beyond the limits of direct-attached storage (DAS)

expansion, some IT organizations have consolidated their storage on networked storage devices.

However, many organizations still continue to use DAS for their virtual workloads. While they have

taken advantage of server consolidation, they have not yet extended the consolidation benefits to

storage. The problem of underutilization of storage resources associated with DAS is dramatically

reduced with networked storage. This is particularly important for a virtual environment because the

only way to take full advantage of server virtualization is with consolidated storage pools; for example,

the ability to move live virtual machines is only enabled with shared storage devices. DAS architectures

can support this function only to a limited number of servers that are directly attached to the storage

device, making your virtual server implementation less flexible.

Many companies that have implemented networked storage solutions in an attempt to avoid the

inefficiencies of DAS have struggled with the complexity and support costs of those solutions.

Hypervisors, such as those from VMware, Microsoft®, and Citrix, support both networked storage

options—storage area network (SAN

may end up with multiple islands of SAN and NAS with separate vendor-specific storage management

consoles that are not easy to use.

This white paper provides an overview of storage options for VMware virtualization and describes the

benefits you can gain from using the EqualLogic FS7500 in conjunction with VMware. It also provides a

performance-based proof point that the EqualLogic FS7500 can meet the demanding I/O needs of

multiple virtual workloads running in VMware environments over the NFS protocol.

Audience

This white paper is intended for customers who have evaluated the EqualLogic unified storage value

proposition and want to explore the use of the EqualLogic FS7500 for their virtual environments. These

customers are looking for a performance-based proof point for running multiple virtual workloads over

the NFS protocol in VMware environments. This white paper does not provide design considerations and

best practices for setting up their virtual infrastructures with VMware over NFS using the EqualLogic

FS7500.

Fibre Channel, iSCSI, or FCoE are storage networking protocols for SANs

) and network attached storage (NAS). Over time many datacenters

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