CPLD-based hard disk monitoring system

Abstract

The invention provides a CPLD-based hard disk monitoring system. The system comprises a hard disk back plate with at least one hard disk and a hard disk controller electrically connected with the harddisk back plate, the hard disk back plate comprises a hard disk status indicating module based on an LED lamp and a CPLD chip electrically connected with the hard disk status indicating module, wherein the CPLD chip is used for receiving and analyzing an SGPIO signal sent by the hard disk controller so as to obtain the current status of at least one hard disk, and a first LED control instructionis sent to the hard disk status indicating module based on the LED lamp according to the analyzed hard disk status; the hard disk status indicating module based on the LED lamp is used for operating the LED lamp according to the first LED control instruction to indicate the corresponding hard disk status. The hard disk status on the hard disk back plate can be monitored in real time and represented.

Description

technical field [0001] The invention relates to the technical field of computers, in particular to a CPLD-based hard disk monitoring system. Background technique [0002] In computer systems, storage is an indispensable part of the device, so functions such as positioning, error reporting, and diagnosis of storage components are of great significance for system monitoring and maintenance. In current computer systems, storage control The device is either the south bridge chip of the motherboard, or the HBA (Host Bus Adapter, host bus adapter) card / RAID (Redundant Array of Independent Disks, redundant array of independent disks, referred to as disk array) card, if you need to detect the current status of the hard disk , can only be checked by entering the Option ROM of the chip or using the host computer software provided by the chip under the system. There are two problems in this way: for the cluster system, it is impossible to directly and intuitively obtain the status info...

AI Technical Summary

Problems solved by technology

[0002] In computer systems, storage is an indispensable part of the device, so functions such as positioning, error reporting, and diagnosis of storage components are of great significance for system monitoring and maintenance. In current computer systems, storage control The device is either the south bridge chip of the motherboard, or the HBA (Host Bus Adapter, host bus adapter) card / RAID (Redundant Array of Independent Disks, redundant array of independent disks, referred to as disk array) card, if you need to detect the current status of the hard disk , can only be checked by entering the Option ROM of the chip or using the host computer software provided by the chip under the system. There are two problems in this way: for the cluster system, it is impossible to directly and intuitively obtain the status information of all hard disks; for the maintenance personnel In other words, when maintaining the system or replacing the hard disk, it is impossible to quickly locate the location of the hard disk that needs to be replaced, resulting in misoperation, which has an incalculable impact on the operation of the entire system and data security.

[0004] 1) After the ASIC dedicated decoding chip decodes the SGPIO signal, it can only be used to light up the LED light to indicate the working status of the hard disk. If you want to further obtain the corresponding hard disk information, you still need to grab the hard disk from the Option ROM or from the special software under the system. Information, application scenarios are very limited;

[0005] 2) The design is not flexible, it can only support the hard disk backplane with 8 ports or the hard disk backplane with up to 32 ports composed of cascaded multiple chips, which cannot meet the needs of all hard disk backplanes;

[0006] 3) Different manufacturers have different definitions for the status of LEDs. Using ASIC chips, the corresponding status of LED actions cannot be modified, and it is impossible to meet some customized needs;

[0007] 4) All the pins of the ASIC dedicated decoding chip are fixed. No matter how complicated the wiring of the hard disk backplane is, the corresponding physical relationship between the LED indicator interface and the hard disk cannot be adjusted, resulting in many errors in the wiring process. Winding and layer change have great restrictions on the overall wiring design

Images