Optimizing Data Write Size Using Storage Device Geometry

Abstract

A write size is determined based on information describing a layout of memory in a storage device operatively coupled to the storage array controller. A write request to store data at a location of the storage device is sent, wherein the write request is associated with the determined write size and wherein the write request includes a physical address of the location in the storage device to store the data.

What is claimed is: 
     
         1 . A method, comprising:
 determining, by a processing device of a storage array controller, a write size based on information describing a layout of memory in a storage device operatively coupled to the storage array controller; and   sending a write request to store data at a location of the storage device, wherein the write request is associated with the determined write size and wherein the write request includes a physical address of the location in the storage device to store the data.   
     
     
         2 . The method of  claim 1 , wherein the write request causes the storage device to store the data at the location. 
     
     
         3 . The method of  claim 1 , wherein the physical address refers to the location in the storage device for an entire life of the storage device. 
     
     
         4 . The method of  claim 1 , wherein the write size is determined upon receiving the information describing the layout of the memory from the storage device. 
     
     
         5 . The method of  claim 1 , wherein the information describing the layout of memory in the storage device includes information describing a size of a writeable memory unit in the storage device. 
     
     
         6 . The method of  claim 5 , wherein the write size corresponds to the size of the writeable memory unit in the storage device. 
     
     
         7 . The method of  claim 1 , wherein the information describing the layout of memory in the storage device includes information describing a size of an erasable memory unit in the storage device. 
     
     
         8 . A storage system, comprising:
 a plurality of storage devices; and   a storage array controller operatively coupled to the plurality of storage device, the storage array controller comprising a processing device, the processing device to:   determine a write size based on information describing a layout of memory in a storage device of the plurality of storage devices; and   send a write request to store data at a location of the storage device, wherein the write request is associated with the determined write size and wherein the write request includes a physical address of the location in the storage device to store the data.   
     
     
         9 . The storage system of  claim 8 , wherein the write request causes the storage device to store the data at the location. 
     
     
         10 . The storage system of  claim 8 , wherein the physical address refers to the location in the storage device for an entire life of the storage device. 
     
     
         11 . The storage system of  claim 8 , wherein the write size is determined upon receiving the information describing the layout of the memory from the storage device. 
     
     
         12 . The storage system of  claim 8 , wherein the information describing the layout of memory in the storage device includes information describing a size of a writeable memory unit in the storage device. 
     
     
         13 . The storage system of  claim 12 , wherein the write size corresponds to the size of the writeable memory unit in the storage device. 
     
     
         14 . The storage system of  claim 8 , wherein the information describing the layout of memory in the storage device includes information describing a size of an erasable memory unit in the storage device. 
     
     
         15 . A non-transitory computer-readable storage medium having instructions stored thereon that when executed by a processing device of a storage array controller, cause the processing device to:
 determine, by the processing device, a write size based on information describing a layout of memory in a storage device operatively coupled to the storage array controller; and   send a write request to store data at a location of the storage device, wherein the write request is associated with the determined write size and wherein the write request includes a physical address of the location in the storage device to store the data.   
     
     
         16 . The non-transitory computer-readable storage medium of  claim 15 , wherein the write request causes the storage device to store the data at the location. 
     
     
         17 . The non-transitory computer-readable storage medium of  claim 15 , wherein the physical address refers to the location in the storage device for an entire life of the storage device. 
     
     
         18 . The non-transitory computer-readable storage medium of  claim 15 , wherein the write size is determined upon receiving the information describing the layout of the memory from the storage device. 
     
     
         19 . The non-transitory computer-readable storage medium of  claim 15 , wherein the information describing the layout of memory in the storage device includes information describing a size of a writeable memory unit in the storage device. 
     
     
         20 . The non-transitory computer-readable storage medium of  claim 15 , wherein the information describing the layout of memory in the storage device includes information describing a size of an erasable memory unit in the storage device.