BMC Control for Hard Disk Backplane Sequence Adjustment
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Solution Overview
Problem
In existing SAS card configurations, hard disks on backplanes are often sequenced in reverse, and manual intervention is required to correct disk sequences, which is inefficient and prone to errors.
Innovation Solution
A method involving a BMC to send target instructions to hard disk backplanes, controlling the SAS card to identify and set disk sequences, and recovering backplanes to adjust and correct disk sequences automatically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a single SAS card is cascaded with multiple hard disk backplanes, then the system can support more hard disks, but the disk sequences may be sequenced in reverse and cannot be changed automatically
Solution Approach 1:
The system performs self-adjustment of disk sequences through automatic detection and control instructions. The management controller automatically detects the connection states of hard disk backplanes and issues control instructions to adjust disk sequences without requiring manual intervention, making the system adjust itself.
Solution Approach 2:
The patent replaces manual mechanical adjustment (physically exchanging backplane positions) with automated electronic control. The management controller sends control instructions through the SAS card to adjust disk sequences electronically, substituting the mechanical operation with an automated electronic control system.
2Reliability
If manual exchange of backplane positions is performed to correct disk sequences, then the correct sequencing is achieved, but the operation becomes complex and time-consuming
Solution Approach 1:
The system performs preliminary detection of backplane connection states and disk sequences before any adjustment is needed. The management controller continuously monitors and detects the connection states, and when reverse sequencing is detected, control instructions are automatically issued to correct the sequences, preventing the need for time-consuming manual intervention.
Solution Approach 2:
The system implements a feedback mechanism where the management controller detects the actual disk sequences and connection states, compares them with the expected configuration, and automatically issues control instructions to correct any reverse sequencing. This closed-loop feedback system ensures reliable correction without manual intervention.
3Reliability
If the system automatically detects and adjusts disk sequences, then manual errors are prevented and sequencing consistency is ensured, but the system complexity increases
Solution Approach 1:
The management controller performs multiple functions: it manages hard disk backplane connections, detects disk sequences, issues control instructions for adjustment, and monitors system state. By making the management controller universal and multi-functional, the patent avoids adding separate dedicated hardware for each function, thereby limiting the increase in system complexity while achieving automated sequence adjustment.
Data Source
AI summary
Provided are a method and apparatus for adjusting disk sequences of hard disk backplanes, a storage medium, and an electronic device. The method includes: sending a first instruction to a second hard disk backplane via a BMC, whereby the second hard disk backplane enters a low state from a high state, where a first disk sequence of a first hard disk backplane precedes a second disk sequence of the second hard disk backplane; controlling a SAS card to identify the first hard disk backplane so as to set a disk sequence of the first hard disk backplane as the first disk sequence; recovering the second hard disk backplane from the low state to the high state, controlling the SAS card to identify the second hard disk backplane in the high state so as to set a disk sequence of the second hard disk backplane as the second disk sequence.