Field qualification of disk drives in consumer electronics devices
View Patent ↗Systems and methods are disclosed for qualifying performance of a disk drive in a digital home communications terminal (DHCT) deployed in the field. In embodiment, among others, at least one DHCT is identified for performance testing. A disk drive performance test application is downloaded to the DHCT over a communication channel. Performance test results are received from the DHCT over the communication channel. A DHCT is designated as having a hard disk failure if the test results are below a threshold.
1. A method for qualifying performance of a disk drive in a digital home communications terminal (DHCT) deployed in the field, the method comprising the steps of:
identifying at least one DHCT for performance testing;
downloading a disk drive performance test application to the DHCT over a communication channel, wherein the disk drive performance test application comprises a user configurable section location table, and wherein the disk drive performance test application is implemented at random times within a pre-specified time window;
receiving performance test results from the DHCT over the communication channel; and
designating the DHCT as having a hard disk failure if the test results are below a threshold.
2. The method of claim 1 , further comprising the step of: instructing the DHCT to remove the test application from memory.
3. The method of claim 1 , further comprising the step of: reporting a time in the test results to the server through an SNMP message.
4. The method of claim 1 , further comprising the steps of: loading the test application into random access memory (RAM); and rebooting the DHCT, wherein the test application remains in RAM after the reboot.
5. The method of claim 4 , further comprising the step of: reporting the time to the server before the reboot step.
6. The method of claim 1 , wherein the communication channel comprises a downstream channel and at least one distinct upstream channel.
7. The method of claim 6 , wherein the at least one upstream channel comprises a telephone subscriber loop.
8. The method of claim 1 , wherein the receiving step further comprises the steps of: receiving a datagram message from the DHCT containing at least a first portion of the test results; transmitting an SNMP request for test results after receiving the datagram message; and receiving an SNMP reply containing at least a second portion of the test results.
9. The method of claim 8 , wherein the SNMP request is transmitted over a video broadcast network.
10. The method of claim 8 , wherein the SNMP request is transmitted over a data carousel network.
11. The method of claim 8 , wherein the SNMP request is transmitted over a telephone subscriber loop.
12. A non-transitory computer-readable storage medium having a computer program for qualifying performance of a disk drive in a digital home communications terminal (DHCT) deployed in the field, comprising:
logic configured to identify at least one DHCT for performance testing;
logic configured to download a disk drive performance test application to the DHCT over a communication channel, wherein the disk drive performance test application comprises a user configurable section location table, and wherein the disk drive performance test application is implemented at random times within a pre-specified time window;
logic configured to receive performance test results from the DHCT over the communication channel; and
logic configured to designate the DHCT as having a hard disk failure if the test results are below a threshold.
13. The computer-readable storage medium of claim 12 , further comprising: logic configured to instruct the DHCT to remove the test application from memory.
14. The computer-readable storage medium of claim 12 , further comprising the steps of: loading the test application into random access memory (RAM); and rebooting the DHCT, wherein the test application remains in RAM after the reboot.
15. The computer-readable storage medium of claim 12 , wherein the communication channel comprises a downstream channel and at least one distinct upstream channel.
16. The computer-readable storage medium of claim 15 , wherein the at least one upstream channel comprises a telephone subscriber loop.
17. The computer-readable storage medium of claim 12 , wherein the receiving logic further comprises: logic configured to receive a datagram message from the DHCT containing at least a first portion of the test results; logic configured to transmit an SNMP request for test results after receiving the datagram message; and logic configured to receive an SNMP reply containing at least a second portion of the test results.
18. The computer-readable storage medium of claim 17 , wherein the SNMP request is transmitted over a video broadcast network.
19. The computer-readable storage medium of claim 17 , wherein the SNMP request is transmitted over a data carousel network.
20. The computer-readable storage medium of claim 17 , wherein the SNMP request is transmitted over a telephone subscriber loop.