Method and system for writing tag and data

摘要

A computing device having a processor for executing an application for generating an input/output (I/O) request for writing data to a logical object presented to the application; and a device interfacing with the computing device having a processor for generating a single I/O command for writing data in response to the I/O request and writing a tag that is associated with the data are provided. The tag includes an identifier for the logical object used for writing the data at a storage device and a logical address for a location at the storage device where the data is written. Furthermore, the tag is stored at a memory device of the device, while the data is stored at a local caching device, at a storage area network (SAN) storage device or both.

主权项

1. A network device interfacing with a computing system, comprising:
a processor for generating a single input/output (I/O) command for writing data in response to an I/O request and also writing a tag that is associated with the data; wherein the tag includes a logical object identifier used for writing the data at a storage device and a logical address for a location at the storage device where the data is written; wherein the tag is stored by the network device at a memory device of the network device, while the data is stored at a local caching device, at a storage area network (SAN) storage device or both by the network device; and wherein the network device is an adapter having a storage protocol controller for interfacing with the SAN storage device and a controller for interfacing with the local caching device.