Optical Transceiver Failover Prediction in Host Bus Adapters
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current implementations of optical transceiver modules in information processing systems face failures that lead to reduced throughput, increased latency, and degraded communication performance, particularly in virtual host environments where multiple devices share a physical HBA port, due to the inefficiencies in handling path failures.
Innovation Solution
The host device monitors health parameters of optical transceiver modules, such as temperature, voltage, and power levels, to predict potential failures and proactively switch IO operations to alternative paths, avoiding costly retries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If optical transceiver modules are used for communication paths, then communication capability is enabled, but hardware failures occur leading to reduced throughput and increased latency
Solution Approach 1:
The system performs preliminary actions by monitoring health parameters (temperature, voltage, power levels) of optical transceiver modules and predicting potential failures before they occur. This allows the MPIO driver to proactively switch IO operations to alternative paths before the actual failure happens, avoiding the latency associated with reactive failover mechanisms.
2Reliability
If reactive failover is implemented, then path failure is handled, but throughput is reduced due to costly retries
Solution Approach 1:
The system performs preliminary actions by monitoring health parameters (temperature, voltage, power levels) of optical transceiver modules and predicting potential failures before they occur. This allows the MPIO driver to proactively switch IO operations to alternative paths before the actual failure happens, avoiding the latency associated with reactive failover mechanisms.
3Reliability
If health monitoring of optical transceiver modules is implemented, then predictive failover is enabled, but device complexity increases
Solution Approach 1:
The optical transceiver modules provide self-service by exposing their health parameters (temperature, voltage, power levels) that can be monitored by the host device. This allows the system to implement predictive failover without requiring complex external monitoring infrastructure, as the modules themselves provide the necessary diagnostic information.
Data Source
AI summary
Method and apparatus for performing proactive input-output (IO) failover based on predicting optical transceiver module hardware failures in a host bus adapter (HBA) are described. An example method includes registering with an HBA to receive a notification that a first path via the HBA is predicted to fail. The notification is based on a set of parameters of an optical transceiver module coupled to the first path. A set of parameters of the optical transceiver module are monitored in accordance with the registration. At least one of the set of parameter is determined to satisfy a predetermined criteria. Responsive to the determination, the notification that the first path via the HBA is predicted to fail is sent, a second path via the HBA for issuing an IO operation is determined, and the IO operation is issued via the second path.