Writing new data of a first block size to a second block size using a write-write mode

Patent metadata

Field	Value
Publication number	US-9213486-B2
Application number	US-201213402465-A
Country	US
Kind code	B2
Filing date	Feb 22, 2012
Priority date	Feb 22, 2012
Publication date	Dec 15, 2015
Grant date	Dec 15, 2015

Abstract

Apparatuses and methods to write new data of a first block size are provided. A particular method may include writing old data from a destination block of a second block size of a data drive to a first buffer of the second block size. The old data may be written according to address information of the old data and without overwriting the new data in the first buffer. The method may further include writing zeros to a second buffer of the second block size according to the address information of the old data. The zeros written in the second buffer may correspond with the old data written in the first buffer.

First claim

The invention claimed is:

1. A method comprising:
receiving, by a storage controller that includes a memory controller and a drive controller, first data of a first block size from a host executing an operating system configured to access blocks of the first block size;
writing, by the storage controller, the first data to a first buffer of a second block size;
reading, by the storage controller, second data from a destination block of a data storage device, wherein the destin…

Assignees

• Galbraith Robert E
• Moertl Daniel F
• IBM

Inventors

• Galbraith Robert E
• Moertl Daniel F

Classifications

• G06F2211/1057

  Physics · mapped topic

• G06F11/1076

  Physics · mapped topic

• G06F3/0656 Primary

  Physics · mapped topic

• G06F3/0689

  Physics · mapped topic

• G06F3/061 Primary

  Physics · mapped topic