Reading Time: 3 minutesIn VMware ESXi, I/O filters can gain direct access to the virtual machine I/O path. The I/O filters are independent of the storage topology and is possible to enable the I/O filter for an individual virtual disk level. VMware offers certain categories of I/O filters, in addition, third-party vendors can create the I/O filters. Typically, they are distributed as packages that provide an installer to deploy the filter components on vCenter Server and ESXi host clusters.