Host-side acceleration for improved storage grid performance

• US 9,639,288 B2
• Filed: 06/29/2015
• Issued: 05/02/2017
• Est. Priority Date: 06/29/2015
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Amit, Jonathan, Chen, Lior, Yamin, Yossi, Drouker, Vladislav
• Primary Examiner(s): Savla, Arpan P.
• Application Number:
  US14/754,119
• Publication Number:
  US 20160378371A1
• Time in Patent Office: 673 Days
• CPC Class Codes: G06F 3/0617 in relation to availability
• CPC Class Codes: G06F 3/0619 in relation to data integrity, e.g. data losses, bit errors
• CPC Class Codes: G06F 3/0635 by changing the path, e.g. traffic rerouting, path reconfiguration
• CPC Class Codes: G06F 3/065 Replication mechanisms
• CPC Class Codes: G06F 3/0665 at area level, e.g. provisioning of virtual or logical volumes
• CPC Class Codes: G06F 3/067 Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]

Abstract

Various embodiments for data management in a storage grid, by a processor device, are provided. In one embodiment, a method comprises directing data Input/Output (I/O) operations from a host to an owning node according to a Logical Block Address (LBA) without a static assignment of ownership, notwithstanding any relationship between the host and the storage grid.

Claims

1. A method for data management in a storage grid, by a processor device, comprising:

directing data Input/Output (I/O) operations from a host to an owning node according to a Logical Block Address (LBA) without a static assignment of ownership, notwithstanding any relationship between the host and the storage grid;

directing the I/O operations according to a mapper layer used to create a dynamic block device, wherein the dynamic block device maintains I/O routing configuration decisions;

maintaining, by the block device, a Logical Address Block (LBA) map;

pointing, by the LBA map, to the owning node holding a certain LBA; and

populating the LBA map according to a storage distribution formula, the storage distribution formula containing a seed number of a Logical Unit Name (LUN).

2. The method of claim 1, wherein the I/O operations may be executed under standard storage networking protocols.

3. A system for data management in a storage grid, comprising:

a processor device, wherein the processor device;

directs data Input/Output (I/O) operations from a host to an owning node according to a Logical Block Address (LBA) without a static assignment of ownership, notwithstanding any relationship between the host and the storage grid;

directs the I/O operations according to a mapper layer used to create a dynamic block device, wherein the dynamic block device maintains I/O routing configuration decisions;

maintains, by the block device, a Logical Address Block (LBA) map;

pointing, by the LBA map, to the owning node holding a certain LBA; and

populates the LBA map according to a storage distribution formula, the storage distribution formula containing a seed number of a Logical Unit Name (LUN).

4. The system of claim 3, wherein the I/O operations may be executed under standard storage networking protocols.

5. A computer program product for data management in a storage grid, by a processor device, the computer program product comprising a non-transitory computer-readable storage medium having computer-readable program code portions stored therein, the computer-readable program code portions comprising:

a first executable portion that directs data Input/Output (I/O) operations from a host to an owning node according to a Logical Block Address (LBA) without a static assignment of ownership, notwithstanding any relationship between the host and the storage grid;

a second executable portion that directs the I/O operations according to a mapper layer used to create a dynamic block device, wherein the dynamic block device maintains I/O routing configuration decisions;

a third executable portion that maintains, by the block device, a Logical Address Block (LBA) map;

a fourth executable portion that points, by the LBA map, to the owning node holding a certain LBA; and

a fifth executable portion that populates the LBA map according to a storage distribution formula, the storage distribution formula containing a seed number of a Logical Unit Name (LUN).

6. The computer program product of claim 5, wherein the I/O operations may be executed under standard storage networking protocols.