Content Addressable Storage Policy Segmentation
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Solution Overview
Problem
Current content addressable storage devices lack the ability to apply application-specific management policies, leading to unnecessary retention of data, as they apply the most restrictive policies to all data, thereby inefficiently utilizing storage resources.
Innovation Solution
Implementing a system where each data object on a content addressable storage device is associated with a specific data set, allowing for the application of corresponding management policies, such as retention policies, by tracking and enforcing these policies through a policy table and content map, enabling differential data retention based on the source application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the same management policies are applied to all data in a CAS device, then device complexity is reduced and ease of operation is improved, but storage resource utilization deteriorates due to unnecessary data retention
Solution Approach 1:
The patent segments data into different data sets based on source applications, and applies different management policies to each segment. The system divides data storage into application-specific zones with customized retention policies, rather than applying a single uniform policy to all data. This segmentation enables optimized storage resource utilization while maintaining manageable complexity through automated policy assignment.
Solution Approach 2:
The patent implements local quality by allowing different management policies to be applied to different data sets based on their specific requirements. Each application's data receives customized retention policies tailored to its needs, rather than applying a blanket policy. This enables storage resources to be optimized for each specific data type while the system maintains overall simplicity through centralized policy management.
2Loss of energy
If application-specific management policies are implemented on a CAS device, then storage resource utilization is improved by reducing unnecessary data retention, but device complexity increases
Solution Approach 1:
The patent implements self-service by enabling the CAS device to automatically identify data set sources and apply appropriate management policies without external intervention. The system autonomously tracks which application generated which data, automatically assigns the correct retention policies, and enforces them without requiring manual policy configuration for each data object. This automation reduces the perceived complexity for users while enabling sophisticated application-specific policy management.
Solution Approach 2:
The patent employs feedback mechanisms where the system continuously monitors data storage operations, tracks source applications, and automatically adjusts policy application based on observed data patterns. The CAS device maintains content maps that record which applications store which data, using this feedback information to automatically apply the correct policies. This feedback loop enables complex policy management to occur transparently without increasing user-facing complexity.
3Reliability
If the most restrictive policy is applied to all data, then data retention reliability is improved, but storage resource utilization deteriorates
Solution Approach 1:
The patent applies parameter changes by varying retention policy parameters (such as retention periods) based on the specific data set and its source application. Instead of using a single restrictive retention parameter for all data, the system dynamically adjusts retention parameters according to application-specific requirements. This enables each application's data to be retained with the appropriate level of reliability while freeing storage capacity that would otherwise be consumed by unnecessarily long retention periods.
Data Source
AI summary
Implementing application specific management policies on a content addressed storage device is disclosed. In one embodiment, each data object stored on the content addressed storage device is associated with one of a plurality of data sets. A corresponding data set specific management policy is associated with at least each of a subset of said plurality of data sets. The applicable data set specific management policy is applied to the data objects of each data set with which a corresponding data set specific management policy has been associated.