Patent ID: 11880316
Assignee: VMWARE LLC
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A method for a computer system to perform input output (IO) request handling based on tracking information, wherein the method comprises:
configuring, in a cache, a zero-filled logical memory page that is mappable to multiple logical block addresses of a virtual disk allocated to a virtualized computing instance;
in response to detecting, from the virtualized computing instance, a first IO request to perform zero writing at a logical block address of the virtual disk, storing tracking information indicating that zero writing has been issued for the logical block address; and
in response to detecting a second IO request to perform a read from the virtual disk at the logical block address,
based on the tracking information, determining that that zero writing has been issued for the logical block address; and
fetching the zero-filled logical memory page from the cache to respond to the second IO request, thereby servicing the second IO request from the cache instead of the virtual disk.