A method of performing disk operations on a physical storage that is being managed by a storage virtual appliance (SVA), from a virtual machine (VM), is disclosed. The method includes intercepting a data read/write request form the VM. The data read/write request is intercepted in the hypervisor prior to the read/write request reaches the SVA. The VM and the SVA are hosted in the hypervisor. The read/write request includes virtual block numbers which are translated into physical block numbers before performing the read/write operation on the physical storage. The method further includes probing a copy of virtual Logical Unit Number (LUN) block numbers to physical disk block numbers mapping table (bock map table) in the hypervisor to identify physical block numbers that corresponds to the virtual block numbers in the read/write request. If a mapping of the virtual block numbers in the read/write request is available in the hypervisor cache, the virtual block numbers are translated into the physical block numbers and the read/write request is performed directly to the physical storage totally bypassing the SVA.