Data storage method and device, equipment and storage medium

The embodiment of the invention provides a data storage method and device, equipment and a storage medium, and relates to the technical field of cloud storage. According to the specific implementation scheme, when it is detected that online storage nodes in a target storage cluster change, the number of the online storage nodes is obtained; if the number of the obtained nodes is smaller than a first preset threshold value, determining storage units to be utilized which are not smaller than the first preset threshold value based on storage resources in the online storage nodes; determining a current EC coding mode based on the obtained number of the storage units to be utilized and a predetermined security level; and storing the current to-be-stored data in the obtained to-be-utilized storage unit in a dispersed manner according to the current EC coding mode. Therefore, through the scheme, both the data security and the space utilization rate can be considered. 本申请实施例提供了一种数据存储方法、装置、设备以及存储介质，涉及云存储技术领域。具体实现方案为：当