Sep 272013
 

The EqualLogic iSCSI SAN was the very first pure iSCSI SAN to become part of VMWare’s Hardware Compatibility List (HCL), and since then it has continued a very strong relationship with VMware by integrating VMware’s latest and greatest tools to leverage the technologies from both platforms.

For example, if one takes a look at some of the more recent EqualLogic tools and integrations for VMware’s vSphere, EqualLogic has been able to take VMware’s storage APIs and leverage them for better performance and utilization. There’s no additional cost for these features…everything’s already part of the EqualLogic pricing. Let’s take EqualLogic’s support for VAAI…a report from The Taneja Group, Inc. says:

“The EqualLogic PS Series was one of the first storage systems to incorporate VAAI support in its firmware. This integration allows the array to perform important storage tasks on behalf of vSphere and thereby improve performance and utilization of the entire infrastructure. Tasks such as full hardware‐accelerated data copy, fixed-zero writes, and volume locking are performed much more effectively in the array, freeing up VMware host-compute resources and network bandwidth. Internal testing at Dell has shown that both host overhead and network traffic can be reduced by over 70%.

“Virtual machine provisioning was also shown to be significantly faster in these same tests. EqualLogic also includes support for added thin-provisioned stun awareness, which greatly reduces the impact of exceeding available space on a thin-­‐provisioned volume. By delegating these tasks to the storage layer, customers can deploy new VMs from templates quickly and easily, and enjoy higher performance for shared storage volumes. Most recently. EqualLogic PS Series firmware version 6.0 has also introduced support for using SCSI unmap operations to recover unused space previously allocated to volumes. VMware vSphere 5.0 customers get better storage utilization with this volume unmap feature.”

To this day, EqualLogic still remains one of the very first iSCSI SAN vendors to quickly integrate new VMware features each and every release and upgrade. For more details on VMware and EqualLogic’s integration, particularly around EqualLogic’s integration tools, please see the Technology Brief by The Taneja Group, Inc. entitled “BETTER TOGETHER: OPTIMIZING VMWARE VSPHERE DEPLOYMENTS WITH DELL’S EQUALLOGIC INTEGRATION TOOLS” for a complete breakdown of features and functionality.

References:

(2012). Better together: Optimizing vmware vsphere deployments with dell’s equallogic integration tools. Taneja Group Technology Analysis – Technology Brief.