VirtuCache Customer Benefits
  1. VirtuCache significantly reduces storage latencies regardless of how random or high the storage throughput. This helps our customers realize:

    1. Higher VM density. Typically storage IO is the main reason for a smaller number of VMs deployed on each ESXi host. By eliminating storage IO bottleneck, it is possible to increase the number of VMs deployed on the host.

    2. Improved performance for IO intensive applications. By eliminating storage IO issues, enterprise applications, especially databases, search engines, ERP, business intelligence, and other IO intensive workloads run a lot better within VMs.

    3. Improved performance of latency sensitive applications like VDI. If VDI deployments suffer from long boot times, momentary freezing of desktop applications, locking of anti-virus VM – all symptoms of high storage latencies, then VirtuCache can fix these problems and ensure improved end user experience from VDI VMs.

  1. Postpone storage network and appliance upgrades. If you are looking to upgrade your storage appliance or storage network to improve throughput or reduce latencies, it will be a lot cheaper to use VirtuCache with a host based SSD / RAM to get comparable performance improvement from your existing SAN infrastructure versus doing a SAN upgrade. Furthermore, unlike in a SAN upgrade, you do not need to upgrade your entire infrastructure. You can pick and choose the ESXi hosts you would like to accelerate. VirtuCache with in-host SSD / RAM is a good way to get improved performance from your existing storage infrastructure, no matter how slow or old.

  1. 10X cheaper than a SAN upgrade. To deploy VirtuCache, all you need is an enterprise grade SSD (or spare in-host RAM). An enterprise grade NVME SSD costs less than $1/GB and does 100,000 IOPS at less than 5 millisecond latencies. Add to it VirtuCache license fees of $3000 per host. On the other hand, for a SAN upgrade, at the very least, you would need to add SSDs to your storage appliance. SSDs from storage vendors (to be installed in the storage array) cost substantially more than if the same SSDs were bought retail (to be installed in the VMware host for use with VirtuCache). Additionally you might need to upgrade the HBA in each host, upgrade the SAN switch, and if your appliance supports only a limited amount of SSDs, maybe even replace the storage appliance. In comparison, the cost involved in deploying VirtuCache with in-server SSDs is an order of magnitude less than the cost involved with a SAN upgrade. Also with us you can start small by deploying VirtuCache on only one host as a first step, in which case all you need to spend on is cache media and license fees for one host. If you like the experience, you can buy more licenses and additional RAM/SSDs for the remaining hosts in your environment, as and when you have the money. In comparison, a SAN upgrade is a large one-time capital expense.

  1. Reduced network traffic. With VirtuCache, since almost all the read requests are now being served from in-server cache, traffic on the storage network is substantially reduced.