LOGICAL ZONE MAPPING

• US 20150363126A1
• Filed: 11/13/2014
• Published: 12/17/2015
• Est. Priority Date: 06/13/2014
• Status: Abandoned Application

• Current Assignee: Seagate Technology LLC (Seagate Technology Holdings Plc)
• Original Assignee: Seagate Technology LLC (Seagate Technology Holdings Plc)
• Inventors: Frick, Guy David
• Application Number:
  US14/540,721
• Publication Number:
  US 20150363126A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 1/28 Supervision thereof, e.g. detecting power-supply failure by out of limits supervision
• CPC Class Codes: G06F 1/3203 Power management, i.e. event-based initiation of a power-saving mode
• CPC Class Codes: G06F 1/3221 of disk drive devices
• CPC Class Codes: G06F 1/3287 by switching off individual functional units in the computer system
• CPC Class Codes: G06F 11/2015 Redundant power supplies power supply failure G06F1/30
• CPC Class Codes: G06F 11/2094 Redundant storage or storage space G06F11/2056 takes precedence
• CPC Class Codes: G06F 2201/805 Real-time
• CPC Class Codes: G06F 3/0604 Improving or facilitating administration, e.g. storage management
• CPC Class Codes: G06F 3/0619 in relation to data integrity, e.g. data losses, bit errors
• CPC Class Codes: G06F 3/0625 Power saving in storage systems
• CPC Class Codes: G06F 3/0634 by changing the state or mode of one or more devices
• CPC Class Codes: G06F 3/0635 by changing the path, e.g. traffic rerouting, path reconfiguration
• CPC Class Codes: G06F 3/0658 Controller construction arrangements
• CPC Class Codes: G06F 3/0659 Command handling arrangements, e.g. command buffers, queues, command scheduling
• CPC Class Codes: G06F 3/0665 at area level, e.g. provisioning of virtual or logical volumes
• CPC Class Codes: G06F 3/0685 Hybrid storage combining heterogeneous device types, e.g. hierarchical storage, hybrid arrays
• CPC Class Codes: G06F 3/0689 Disk arrays, e.g. RAID, JBOD
• CPC Class Codes: Y02B 70/10 Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
• CPC Class Codes: Y02D 10/00 Energy efficient computing, e.g. low power processors, power management or thermal management

Abstract

A mass data storage system includes a plurality of communicatively coupled storage resources that are each controlled by one of a plurality of distinct storage controllers. Each of the storage resources are mapped to one or more logical zones, and the logical zones each apply an associated storage condition to data stored therein.

Claims

1. A method comprising:

mapping a plurality of storage resources to one or more of multiple logical zones in a storage system, each of the storage resources having a storage controller and each of the logical zones associated with a different storage condition and defining a group of storage resources applying the associated storage condition to data stored therein.

2. The method of claim 1 further comprising:

selecting one of the logical zones to receive data of a write request based on a storage characteristic of the write request satisfying the storage condition of the logical zone that was selected.

3. The method of claim 2 wherein the storage characteristic is specified in the write request.

4. The method of claim 2 wherein the storage characteristic is determined based on a user'"'"'s subscription to a storage service.

5. The method of claim 2 wherein the storage condition and the storage characteristic indicate a degree of data integrity.

6. The method of claim 2 wherein the storage condition is a size of a shingled magnetic recording band and the storage characteristic is a size of the data of the write request.

7. The method of claim 2 wherein the storage condition and the storage characteristic indicate a level of encryption for data of the write request.

8. The method of claim 2 wherein the storage condition is an access speed and the storage characteristic refers to a time-to-data (TTD) in which data of the write request can be accessed.

9. The method of claim 1 wherein the storage resources have disparate physical characteristics.

10. A storage system comprising:

a zone manager configured to map a plurality of storage devices to one of multiple logical zones in the storage system, each of the storage devices having a distinct storage controller and each of the logical zones associated with a different storage condition and defining a group of storage devices applying the associated storage condition to data stored therein.

11. The storage system of claim 10 further comprising:

a write manager configured to select one of the logical zones to receive data of a write request based on a storage characteristic of the write request satisfying the storage condition of the selected logical zone.

12. The storage system of claim 11 wherein the storage condition and the storage characteristic indicate a degree of data integrity.

13. The storage system of claim 11 wherein the storage condition and the storage characteristic indicate of a level of encryption for data of the write request.

14. The storage system of claim 11 wherein the storage condition is an access speed and the storage characteristic refers to a time-to-data (TTD) in which data of the write request can be accessed from the storage system.

15. The storage system of claim 11 wherein each of the logical zones is defined to have an independent power source for each of a predetermined number of storage devices.

16. The storage system of claim 10 wherein each of the different logical zones is defined to include storage devices of substantially the same capacity.

17. The storage system of claim 10 wherein the zone manager is configured to dynamically add or remove storage devices from each of the logical zones.

18. A method comprising:

mapping storage resources to different logical zones in a computer system, each of the logical zones defined to have an independent power source for each of a predetermined number of storage resources; and

selecting multiple storage resources in a logical zone to receive data of a write request.

19. The method of claim 18 wherein each of the different logical zones is defined to have a maximum number of storage resources in a same field replaceable unit.

20. The method of claim 18 wherein at least two of the storage resources are managed by different storage controllers.