18533870. TECHNIQUES FOR AVOIDING AND REDUCING DATA UNAVAILABILITY simplified abstract (Dell Products L.P.)
Contents
- 1 TECHNIQUES FOR AVOIDING AND REDUCING DATA UNAVAILABILITY
- 1.1 Organization Name
- 1.2 Inventor(s)
- 1.3 TECHNIQUES FOR AVOIDING AND REDUCING DATA UNAVAILABILITY - A simplified explanation of the abstract
- 1.4 Simplified Explanation
- 1.5 Potential Applications
- 1.6 Problems Solved
- 1.7 Benefits
- 1.8 Potential Commercial Applications
- 1.9 Possible Prior Art
- 1.10 Original Abstract Submitted
TECHNIQUES FOR AVOIDING AND REDUCING DATA UNAVAILABILITY
Organization Name
Inventor(s)
David Meiri of Somerville MA (US)
Dmitry Tylik of Westborough MA (US)
TECHNIQUES FOR AVOIDING AND REDUCING DATA UNAVAILABILITY - A simplified explanation of the abstract
This abstract first appeared for US patent application 18533870 titled 'TECHNIQUES FOR AVOIDING AND REDUCING DATA UNAVAILABILITY
Simplified Explanation
The patent application describes a clustered pair of storage systems configured for active-active bidirectional synchronous replication, where a stretched volume is exposed over paths to both storage systems. The systems replicate writes to the stretched volume received at each system to the peer system. The cluster can use a time-to-live (TTL) mechanism to ensure system availability and health, with algorithms in place to reduce or avoid data unavailability.
- Stretched volume exposed over paths to both storage systems
- Active-active bidirectional synchronous replication
- Time-to-live (TTL) mechanism for system availability
- Algorithms to reduce or avoid data unavailability
- Health assessment of systems in the cluster
Potential Applications
This technology can be applied in disaster recovery solutions, high availability systems, and data replication scenarios.
Problems Solved
This technology solves the problem of data unavailability in clustered storage systems and ensures system health and availability.
Benefits
The benefits of this technology include improved system reliability, reduced data loss risk, and enhanced disaster recovery capabilities.
Potential Commercial Applications
Potential commercial applications include enterprise storage solutions, cloud storage services, and data backup and recovery systems.
Possible Prior Art
One possible prior art could be traditional storage replication methods that may not offer bidirectional synchronous replication or advanced health assessment algorithms.
== Unanswered Questions
How does the TTL mechanism work in detail?
The patent application mentions a time-to-live (TTL) mechanism for system availability, but the specific implementation and functioning of this mechanism are not detailed.
While the patent application mentions algorithms to reduce or avoid data unavailability, the exact algorithms and their functioning are not specified.
Original Abstract Submitted
A clustered pair of storage systems configured for active-active bidirectional synchronous replication expose a stretched volume over paths to both storage systems. Writes to the stretched volume received at each system are replicated to the peer system. The cluster can use a time-to-live (TTL) mechanism by which a non-preferred system continuously requests a TTL grant from the preferred system to remain in the cluster. Algorithms that reduce or avoid data unavailability are described and can include assessing the health of the systems in the cluster. An unhealthy system can trigger a one-sided polarization algorithm to notify the peer system that it is polarization winner. An improved polarization technique using a witness to decide the polarization winner includes a system adding a time delay before contacting the witness if the system is unhealthy. A control component can detect an unhealthy system and disable the active-active bidirectional synchronous replication.
