IP Library Granted Patent US 8,019,926
Granted Patent B2
US 8,019,926 · App. 12/167,658 · Granted Sep 13, 2011

Automatically assigning a multi-dimensional physical address to a data storage device

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Quick Facts
Patent No.
US 8,019,926
App. No.
12/167,658
Granted
Sep 13, 2011
Kind
B2
Abstract

A method of assigning a multi-dimensional physical address to a tape-based data storage device is provided. The method includes accessing a first signal from a first communication path electrically coupled to a first tape-based data storage device, wherein the first signal indicates a physical position of the first tape-based data storage device with respect to a first axis. The method further includes accessing a second signal from a second communication path electrically coupled to the first tape-based data storage device, wherein the second signal is associated with a physical position of the first tape-based data storage device with respect to a second axis. The method also includes determining a unique physical location of the first tape-based data storage device in the second axis based on the second signal and assigning a unique physical address to the first tape-based data storage device, wherein the unique physical address is based on the physical position of the first tape-based data storage device in the first axis and based on the physical position of the first tape-based data storage device in the second axis.

Claims (47)

1. A method of assigning a multi-dimensional physical address to a tape-based data storage device, the method comprising:

accessing a first signal from a first communication path electrically coupled to a first tape-based data storage device, the first signal indicating a physical position of the first tape-based data storage device with respect to a first axis;

accessing a second signal from a second communication path electrically coupled to the first tape-based data storage device, the second signal associated with a physical position of the first tape-based data storage device with respect to a second axis;

determining a unique physical location of the first tape-based data storage device in the second axis based on the second signal; and

assigning a unique physical address to the first tape-based data storage device, the unique physical address based on the physical position of the first tape-based data storage device in the first axis and based on the physical position of the first tape-based data storage device in the second axis.

2. The method of claim 1 , where the first signal is generated by a second tape-based data storage device electrically coupled with the first signal path.

3. The method of claim 2 , where the second tape-based data storage device and the first tape-based data storage device reside physically on the first axis.

4. The method of claim 1 , comprising:

accessing a look-up table to determine the unique physical location of the first tape-based data storage device in the second axis based on the second signal.

5. The method of claim 4 , where the unique physical location in the second axis is defined by at least three bits of data.

6. The method of claim 1 , comprising:

providing the unique physical location of the first tape-based data storage device in the second axis to a second tape-based data storage device in the second axis.

7. The method of claim 1 , comprising:

accessing a third signal from a third communication path electrically coupled to a first tape-based data storage device, the third signal indicating a physical position of the first tape-based data storage device with respect to a third axis.

8. The method of claim 1 , comprising:

identifying an error associated with the first tape-based data storage device; and

generating a report of the error, the report including the unique physical address of the first tape-based data storage device.

9. A computer-readable storage medium having computer-executable instructions for performing a method of assigning a multi-dimensional physical address to a tape-based data storage device, the method comprising:

accessing a first signal from a first communication path electrically coupled to a first tape-based data storage device, the first signal indicating a physical position of the first tape-based data storage device with respect to a first axis;

accessing a second signal from a second communication path electrically coupled to the first tape-based data storage device, the second signal associated with a physical position of the first tape-based data storage device with respect to a second axis;

determining a unique physical location of the first tape-based data storage device in the second axis based on the second signal; and

assigning a unique physical address to the first tape-based data storage device, the unique physical address based on the physical position of the first tape-based data storage device in the first axis and based on the physical position of the first tape-based data storage device in the second axis.

10. The computer-readable storage medium of claim 9 , where the first signal is generated by a second tape-based data storage device electrically coupled with the first signal path.

11. The computer-readable storage medium of claim 10 , where the second tape-based data storage device and the first tape-based data storage device reside physically on the first axis.

12. The computer-readable storage medium of claim 9 , where the method comprises:

accessing a look-up table to determine the unique physical location of the first tape-based data storage device in the second axis based on the second signal.

13. The computer-readable storage medium of claim 12 , where the unique physical location in the second axis is defined by at least three bits of data.

14. The computer-readable storage medium of claim 9 , where the method further comprises:

providing the unique physical location of the first tape-based data storage device in the second axis to a second tape-based data storage device in the second axis.

15. The computer-readable storage medium of claim 9 , where the method comprises:

accessing a third signal from a third communication path electrically coupled to a first tape-based data storage device, the third signal indicating a physical position of the first tape-based data storage device with respect to a third axis.

16. The computer-readable storage medium of claim 9 , where the method comprises:

identifying an error associated with the first tape-based data storage device; and

generating a report of the error, the report including the unique physical address of the first tape-based data storage device.

17. A system for assigning a multi-dimensional physical address to a tape-based data storage device comprising:

a first tape-based data storage device comprising:

a first input for receiving a first signal from a first communication a path electrically coupled to the first tape-based data storage device, the first signal indicating a physical position of the first tape-based data storage device with respect to a first axis;

a second input for accessing a second signal from a second communication path electrically coupled to the first tape-based data storage device, the second signal associated with a physical position of the first tape-based data storage device with respect to a second axis;

a look-up table coupled with the second input for determining a unique physical location of the first tape-based data storage device in the second axis based on the second signal; and

an address determiner for generating a unique physical address for the first tape-based data storage device, the unique physical address based on the physical position of the first tape-based data storage device in the first axis and based on the physical position of the first tape-based data storage device in the second axis.

18. The system of claim 17 , where the first signal is generated by a second tape-based data storage device electrically coupled with the first signal path.

19. The system of claim 18 , where the second tape-based data storage device and the first tape-based data storage device reside physically on the first axis.

20. The system of claim 17 , where the unique physical location in the second axis is defined by at least three bits of data in the look-up table.

21. The system of claim 17 , comprising:

a first output for providing the unique physical location of the first tape-based data storage device in the second axis to a second tape-based data storage device physically located on the second axis.

22. The system of claim 21 , comprising:

a second output for providing the first signal to a third tape-based data storage device physically located on the first axis.

Assignments (2)
RELEASE OF SECURITY INTEREST Recorded Oct 25, 2016
From: WELLS FARGO CAPITAL FINANCE, LLC, AS AGENT
To: QUANTUM CORPORATION
Reel/Frame 040474/0079 →
SECURITY AGREEMENT Recorded Mar 31, 2012
From: QUANTUM CORPORATION
To: WELLS FARGO CAPITAL FINANCE, LLC, AS AGENT
Reel/Frame 027967/0914 →