VirtuCache improves VMware and VM storage performance
VirtuCache significantly reduces storage latencies regardless of how random or high the storage throughput. This helps our customers realize:
- Higher VM density. Typically storage IO bottleneck is the main reason for a smaller number of VMs deployed on each ESXi host. By eliminating this constraint, our customers can increase the number of VMs deployed per host.
- Improved performance for IO intensive applications. By eliminating storage IO issues, IO intensive applications that run within VMs like databases, search engines, ERP, EMR, business intelligence, dev/ops (like Jenkins), etc. and workloads that run in the ESXi OS like backups/restores, anti-virus, VM provisioning/deletion, and snapshot creation/deletion, run a lot faster.
- Improved performance of latency sensitive applications like VDI and VM boot. If end user facing applications and VDI, suffer from long boot times, momentary freezing of cursor/mouse, jittery audio/video – all symptoms of high storage latencies, then VirtuCache can fix these problems. All user facing applications and VM boot process require low latencies.
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 host based Flash / RAM 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.
Much cheaper than SAN upgrade
To deploy VirtuCache, all you need is an enterprise-grade SSD (or spare in-host RAM). An enterprise-grade NVME SSD costs 50-70 US Cents/GB and does 600,000 IOPS random reads / 200,000 IOPS random writes. Add to it VirtuCache license fees of $3600 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 network and maybe even replace the storage appliance. In comparison, the cost involved in deploying VirtuCache with in-server Flash is an order of magnitude less. 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.
Reduced network traffic
With VirtuCache, since almost all the read requests are now being served from in-host cache, traffic on the storage network is substantially reduced.