Data recorder

• US 7,783,956 B2
• Filed: 07/12/2006
• Issued: 08/24/2010
• Est. Priority Date: 07/12/2006
• Status: Active Grant

• Current Assignee: Cronera Systems Incorporated
• Original Assignee: Cronera Systems Incorporated
• Inventors: Massie, John, Ko, Gwon Hee
• Primary Examiner(s): Alphonse; Fritz
• Application Number:
  US11/456,935
• Publication Number:
  US 20080034259A1
• Time in Patent Office: 1,504 Days
• Field of Search: 714/763, 714/770, 714/785, 714/774, 714/776, 714/45, 710/21, 711/162, 369/47.5
• US Class Current: 714/763
• CPC Class Codes: G06F 11/1441 Resetting or repowering
• CPC Class Codes: G06F 11/1658 Data re-synchronization of a redundant component, or initial sync of replacement, additional or spare unit

Abstract

A data recorder includes a first memory element including read/write capability, a second memory element including non-volatile memory and a controller for realizing memory management functions. The controller responds to a predetermined triggering event by writing selected data from the first memory element to the second memory element. The selected data include data units that have been modified after a prior triggering event.

Claims

1. A data recorder comprising:

a first memory element including read/write capability;

a second memory element including non-volatile memory; and

a controller for realizing memory management functions, wherein the controller writes selected data from the first memory element to the second memory element in response to a predetermined triggering event, the selected data including data that have been modified after a prior triggering event;

wherein each triggering event results in one of multiple records each describing a state of data elements, and a user may select one of the multiple records and restore the selected record to operating memory in real time.

2. The data recorder of claim 1, wherein the prior triggering event is a most recent triggering event prior to the predetermined triggering event.

3. The data recorder of claim 1, wherein the first and second memory elements include random-access memory elements.

4. The data recorder of claim 1, wherein the first memory element includes spindle-based data storage elements, magnetic media, or hard disks.

5. The data recorder of claim 1, wherein the data recorder is configured to provide multiple networked computing resources with a common data storage and recall capability.

6. The data recorder of claim 1, further comprising driver software which can provide access to a plurality of archived states of the data recorder.

7. The data recorder of claim 1, wherein the data recorder is configured to share memory resources with a plurality of interconnected data recorders.

8. The data recorder of claim 1, wherein the data recorder is configured to emulate a tape drive, optical drive, or spindle-based hard disk drive.

9. The data recorder of claim 1, further comprising one or more external interfaces, which enable external computing resources to access the data recorder via a telecommunications network.

10. The data recorder of claim 1, wherein the first memory element or the second memory element is logically or virtually partitioned.

11. The data recorder of claim 1, wherein the data recorder acts as both a primary storage device and a backup storage device.

12. A process for recording a state of computer-readable information associated with a computing resource, comprising:

accessing a read/write memory having temporal data stored therein;

determining when a triggering event has occurred;

flushing the read/write memory into a non-volatile memory when a triggering event has occurred;

notifying one or more hosts connected to the non-volatile memory when the read/write memory is flushed, wherein the notification occurs via a default or a user-configured method; and

writing changes to data sets into the non-volatile memory, the changes reflecting modification occurring after a prior triggering event.

13. The process of claim 12, wherein the notification includes an action to refresh a multiplicity presentation to the hosts based on one or more default or user-configured parameters.

14. The process of claim 13, wherein refreshing a multiplicity presentation comprises moving a pointer to the multiplicity presentation.

15. The process of claim 12, further comprising storing data descriptive of flushed memory contents in a non-volatile memory.

16. The process of claim 12, further comprising writing changes to data sets into the read/write memory, the changes reflecting modification occurring after a prior triggering event.

17. The process of claim 12, wherein the non-volatile memory includes flash memory.

18. A data recorder comprising:

an input/output switch coupled to an interconnection through which the data recorder can communicate with one or more first computing resources;

a port coupled to an external input/output interface through which the data recorder can communicate with one or more second computing resources;

a plurality of memory elements in communication with the input/output switch and the port;

a controller in communication with the input/output switch, the port, and the plurality of memory elements,

wherein the controller is configured to coordinate data flow via the input/output switch to exchange information between the data recorder and the one or more first computing resources, and

wherein the controller is configured to coordinate data flow through the external input/output interface via the port to exchange information between the data recorder and the one or more second computing resources.