DVR Failover via Backup Synchronization
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Solution Overview
Problem
DVR and PVR systems are prone to hard drive failures, leading to inoperability and loss of recorded content, as they rely on spinning disks that can experience mechanical failures and read/write errors, necessitating either replacement or formatting, and there is no effective automatic failover solution for cloud-based recording and playback systems.
Innovation Solution
Implementing a system that automatically fails over from a primary recording and playback device to a backup device, either local or cloud-based, synchronizing content and playlists to ensure continuous recording and playback operations by designating a backup DVR system to take over in case of primary device failure, utilizing redundant storage arrays and failover managers to manage data and user interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a primary DVR device is used for recording and playback operations, then recording and playback functionality is provided, but the system is vulnerable to hard drive failures causing inoperability and content loss
Solution Approach 1:
The system designates a backup DVR device in advance before any failure occurs. The backup device is pre-configured with failover capabilities and can immediately take over recording and playback operations when the primary device fails, eliminating service interruption without requiring complex real-time redundancy mechanisms
Solution Approach 2:
The backup DVR device maintains a copy of the playlist data and content metadata from the primary device. This copying approach allows the backup system to provide identical functionality without requiring complete real-time data synchronization, reducing system complexity while ensuring reliability
2Reliability
If automatic failover is implemented from primary to backup DVR system, then continuous recording and playback operations are ensured, but data synchronization complexity increases
Solution Approach 1:
The patent extracts the critical failover functionality into a separate failover manager component that handles backup device selection and activation. This separation allows the core recording and playback operations to remain simple while the complexity of automatic failover and data synchronization is isolated to a dedicated management system
Solution Approach 2:
The system implements a failover manager that continuously monitors the operational status of the primary DVR device and automatically triggers failover when failure is detected. This feedback mechanism ensures continuous operation without requiring manual intervention, while the automated nature reduces the perceived complexity for users
3Reliability
If backup DVR device with redundant storage is implemented, then failover capability is provided, but storage resource requirements increase
Solution Approach 1:
The backup DVR device maintains partial redundancy by storing playlist data and content metadata rather than complete duplicate copies of all recorded content. This partial redundancy approach provides sufficient failover capability for recording and playback operations while significantly reducing storage resource requirements compared to full duplication
Data Source
AI summary
Aspects of the present disclosure provide for systems and methods that provide automatic failure options from a primary recording and/or playback device/system to a backup recording and/or playback system, but are not so limited. A disclosed system operates to failover to one or more of a backup cDVR system and/or local DVR device/system when a primary recording and/or playback device/system is inoperable or otherwise inaccessible. A method of an embodiment operates to automatically failover to a backup DVR device/system upon detecting a failure mode associated with a primary DVR device/system, wherein the automatic failover includes synchronizing one or more content items and/or one or more content items playlists associated with the backup DVR device/system and the primary DVR device/system.