Abstract: Techniques for data processing involve: determining, from a disk array, a target disk used for data reconstruction of the disk array; and sending, to an indicating apparatus associated with the target disk, an indication that the target disk is used for the data reconstruction. In this way, such techniques can indicate to the user that the target disk is being used for data reconstruction to remind the user not to remove or move the target disk, thereby ensuring completion of the data reconstruction. Such a technique may improve data storage equipment operation by preventing user interference.

Abstract: A group of state data of storage space in a storage system is collected according to a predetermined time interval, the group of state data being collected at a group of time points, respectively, and the group of time points being divided according to the predetermined time interval. The group of state data is compared with a threshold condition of the storage system, the threshold condition representing that storage space in the storage system is to be exhausted. An association relationship between a state of storage space in the storage system and a future time point is generated based on the group of state data in accordance with determining at least one state data in the group of state data satisfies the threshold condition. A state estimate of storage space in the storage system at a specified future time point is obtained based on the generated association relationship.

Abstract: Techniques perform data processing. Such techniques involve: generating, based on a time sequence that a plurality of requests are detected, a first-input first-output (FIFO) queue comprising the plurality of requests sent by a plurality of storage pools in a storage system for reclaiming storage spaces of the plurality of storage pools. Such techniques further involve: determining respective available storage spaces of the plurality of storage pools. Such techniques further involve: updating, based on the available storage spaces, a sequence of the plurality of requests in the FIFO queue for processing. Such techniques can effectively alleviate the problem that the storage pools are short of storage spaces.

Abstract: Techniques for data processing involve: determining, from a disk array, a target disk used for data reconstruction of the disk array; and sending, to an indicating apparatus associated with the target disk, an indication that the target disk is used for the data reconstruction. In this way, such techniques can indicate to the user that the target disk is being used for data reconstruction to remind the user not to remove or move the target disk, thereby ensuring completion of the data reconstruction. Such a technique may improve data storage equipment operation by preventing user interference.

Abstract: A group of state data of storage space in a storage system is collected according to a predetermined time interval, the group of state data being collected at a group of time points, respectively, and the group of time points being divided according to the predetermined time interval. The group of state data is compared with a threshold condition of the storage system, the threshold condition representing that storage space in the storage system is to be exhausted. An association relationship between a state of storage space in the storage system and a future time point is generated based on the group of state data in accordance with determining at least one state data in the group of state data satisfies the threshold condition. A state estimate of storage space in the storage system at a specified future time point is obtained based on the generated association relationship.

Abstract: Techniques perform data input and output. For example, there is provided a technique for updating a data pattern table. The technique involves: during a time period for establishing or updating the data pattern table: receiving a data write request; making statistics of a frequency of data being written; and writing data frequently used and an identification of the data to a corresponding entry of the data pattern table based on a result of the statistics. Using such a technique, a data pattern table can be customized and data storage efficiency can be improved.

Abstract: Techniques perform data processing. Such techniques involve: generating, based on a time sequence that a plurality of requests are detected, a first-input first-output (FIFO) queue comprising the plurality of requests sent by a plurality of storage pools in a storage system for reclaiming storage spaces of the plurality of storage pools. Such techniques further involve: determining respective available storage spaces of the plurality of storage pools. Such techniques further involve: updating, based on the available storage spaces, a sequence of the plurality of requests in the FIFO queue for processing. Such techniques can effectively alleviate the problem that the storage pools are short of storage spaces.

Abstract: Techniques perform data input and output. For example, there is provided a technique for updating a data pattern table. The technique involves: during a time period for establishing or updating the data pattern table: receiving a data write request; making statistics of a frequency of data being written; and writing data frequently used and an identification of the data to a corresponding entry of the data pattern table based on a result of the statistics. Using such a technique, a data pattern table can be customized and data storage efficiency can be improved.