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The big difference between the two is that VSA caches only 2GB of reads from the Master VM^1,2. VirtuCache caches reads + writes from all server & desktop VMs, and it can cache to TBs of in-host SSD/RAM, so that all storage IO is serviced from in-host cache.

More details in the table below.

The biggest differences are: We accelerate both reads and writes, Infinio accelerates only reads. Infinio doesn't support Linked Clones or Non Persistent VDI. We support all VDI features. With us you can apply caching policy at the datastore and/or VM level versus only at the VM level with Infinio. We accelerate IO originating in VMware kernel and VMs, versus only VM generated IO is accelerated by...

In our first article, we explained the differences between our host side caching software (VirtuCache) and Datrium's (DVX DiESL). To summarize the first article, VirtuCache differs from DVX DiESL in 3 ways - (1) VirtuCache caches reads and writes to in-host cache media, Datrium caches only reads; (2) DVX DiESL only works for Datrium's own appliance, VirtuCache works for any appliance; and (3) VirtuCache can cache to in-host RAM and SSD, DVX DiESL can cache to in-host SSD only. Now Datrium, on...

Both Datrium and us differentiate from the rest of the storage appliance vendors in that both of us cache data to cache media in the VMware host instead of the storage appliance, which is the traditional approach. But the similarities between Datrium's and our ESXi host cache end there. The top three differences between Datrium DVX DiESL and our VirtuCache are: Our host side caching accelerates any storage appliance, Datrium’s works only for their own appliance; We cache...