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SAS domain node monitoring method and device, system and node

A node and multi-node technology, applied in hardware monitoring, instruments, electrical digital data processing, etc., can solve the problems of lack of management, inability to work, and waste of storage resources.

Active Publication Date: 2021-03-30
HANGZHOU HIKVISION DIGITAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the nodes in the SAS domain system may be in a state of being unable to work due to some special reasons, resulting in a lack of management of the disk of the node, resulting in a waste of storage resources

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  • SAS domain node monitoring method and device, system and node
  • SAS domain node monitoring method and device, system and node
  • SAS domain node monitoring method and device, system and node

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Embodiment Construction

[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0050] see Figure 1a , Figure 1a Shown is a schematic structural diagram of a multi-node SAS domain system provided by an embodiment of the present invention, which may include nodes 100 and SAS switches 200, wherein each node 100 includes a host bus adapter HBA (Host BusAdapter) 110, an expander EXP (Expander ) 120, and at least one hard disk HDD (Hard Disk Drive) 130. The number of HDDs in different nodes may be the same or different. For example, node A m...

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Abstract

The embodiment of the invention provides an SAS domain node monitoring method and device, a system and a node. The method is applied to any node in the multi-node SAS domain system, each node in the multi-node SAS domain system comprises a host bus adapter HBA, an expander EXP and at least one disk HDD, the EXP of each node is used for connecting the HBA and the HDD of the node, a storage page isstored in the EXP of each node, and each node periodically updates the storage page of the node. The method comprises the following steps: periodically reading the storage pages in EXPs of other nodes; determining whether the storage pages of the other nodes are updated or not; and if the storage pages of the other nodes are not updated, determining that the other nodes are in a downtime state. Heartbeat monitoring among the nodes can be realized through the EXP storage page which can be shared among the nodes, so that the nodes in a downtime state can be found accurately and timely.

Description

technical field [0001] The invention relates to the technical field of SAS domain storage clusters, in particular to a node monitoring method, device, system and node of a SAS domain. Background technique [0002] A SAS (Serial Attached Small computer system interface, Serial Attached Small Computer System Interface) domain system may include multiple storage devices, which are hereinafter referred to as nodes in the SAS domain system. These nodes are connected through SAS technology, which can realize point-to-point data interaction between nodes. [0003] However, the nodes in the SAS domain system may be in an inoperable downtime state due to some special reasons, resulting in a lack of management of the disk of the node, resulting in a waste of storage resources. How to accurately monitor the status of the nodes in the SAS domain system, and find the nodes in the down state in time, so as to reduce the waste of storage resources, has become an urgent technical problem t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/30
CPCG06F11/3034G06F11/3051G06F11/3055Y02D10/00
Inventor 王腾腾李庆华吴海波张宏海
Owner HANGZHOU HIKVISION DIGITAL TECH