VirtuCache is a VMware certified software solution installed in vSphere hosts that improves the storage performance of VMware VMs by automatically caching all storage IO from VMs to in-ESXi host NVMe, SSD or RAM.

VirtuCache caches all VM reads and writes to in-host cache, and it protects against data loss in case of host failure by mirroring the write cache to cache(s) in other hosts in the same ESXi cluster. Caching is fully automatic with cache capacity dynamically allocated to VMs based on usage patterns.

It is an easy to use downloadable software, installed on each host in 10 minutes, and without host maintenance mode. It requires no storage and host reconfiguration. And no ongoing administration is required.


(2 min video) How a hospital used VirtuStor software to create an iSCSI SAN appliance using commodity physical servers.

(2 min video) How VirtuCache improved storage performance for VMware VMs for Onhold Inc. without requiring a storage appliance upgrade.

“We have deployed VirtuCache across our Global VMware infrastructure since 2011. Though our storage arrays and networks have changed over these past ten years, having gone from EMC Clariion FC arrays to Hitachi HDS, to newer technologies like StorSimple, and CohoData and now to IBM arrays, the one thing that has stayed constant in the Storage IO path these many years is Virtunet’s ESXi caching software. We currently pair Virtucache with host RAM to reduce latencies in all our VMs. The VMs that are specifically benefited are Database VMs, our ERP applications, Exchange, Domain Controllers and VDI VMs”

Mike Johnson
Director, Global IT Infrastructure
The Myers Briggs Company

“We first used VirtuCache to improve the performance of CEPH storage which was very cost effective for us. We have since acquired a reasonably priced Seagate All-Flash Array to power our VDI and EMR applications, and we continue to see the benefits of VirtuCache accelerating the Seagate AFA as well. Especially for our VDI VMs, VirtuCache caches to ESXi RAM which results in very low latencies in our VDI VMs”

Jonathan Hatfield
Director of IT and Compliance, Public Records Officer
Klickitat Valley Health


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