Emc IP Holding Company LLC

Jun Tang

Yi Bin Wang

Qingxiao Zheng

Wei Wang

Bing Liu

A method, electronic device, and a computer readable medium for managing backup data that includes determining an expiration time of backup data in a data set to be backed up in a source storage device, and determines a priority of the backup data to be migrated in a migration operation to be performed based on the expiration time. The method may also include migrating backup data with the same priority in the data set to be backed up to a target storage device to reduce a write amplification factor of a storage device, and prolong the service life of the storage device.

Method, electronic equipment, and computer program product for managing backup data

The present disclosure relates to a method, device and computer program product for managing jobs in a processing system. The processing system comprises multiple client devices. In the method, based on a group of jobs from the multiple client devices, a current workload of the group of jobs is determined. A group of job descriptions associated with the group of jobs is determined based on configuration information of various jobs in the group of jobs. A future workload associated with the group of jobs is determined based on associations, comprised in a workload model, between job descriptions and future workloads associated with the job descriptions. The group of jobs in the processing system are managed based on the current workload and the future workload. With the foregoing example implementation, jobs in the processing system may be managed more effectively, and latency in processing jobs may be reduced. Further, there is provided a device and computer program product for managing jobs in a processing system.

Method, device, and computer program product for managing jobs in processing system

Method, device, and computer program product for managing processes are disclosed. The method may include, in response to detecting a job to be executed in a job processing system, determining attribute information related to execution of a message queue in the job processing system; and determining, based on the attribute information, allocation information for a process to execute the job. The number of processes can be dynamically adjusted according to the current processing capacity of the job processing system, thereby improving the use of the resources of the job processing system and meanwhile avoiding crashing of the job processing system.

Method, device, and computer program product for managing processes based on reading speed of a message queue

Embodiments of the present disclosure relate to a method, an electronic device, and a computer program product for storage management. The method for storage management includes determining the data volume of corresponding failed data in a plurality of candidate sub-storage spaces of a disk, the plurality of candidate sub-storage spaces being formed by dividing the original storage space of the disk and having consecutive physical addresses, and the size of one candidate sub-storage space being associated with the size of the storage space of at least one block that constitutes the disk; and selecting a target sub-storage space to be released from the plurality of candidate sub-storage spaces based at least on the data volume of the corresponding failed data. As such, since the operation of moving valid data in an SSD block to a new SSD block is reduced, the WAF of a storage system, especially an SSD, can be effectively reduced, and the service life of the SSD can be prolonged.

Method, electronic device, and computer program product for storage management

Embodiments of the present disclosure relate to a method for managing backup data, an electronic device, and a computer program product. This method comprises: determining a number of times of space recycling operations that have been executed on a backup data block; determining, based on the number of times, a current popularity of the backup data block, the current popularity at least indicating a probability that the backup data block will be recycled in a to-be-executed space recycling operation; and moving, based on a determination that a former storage area where the backup data block is located does not correspond to the current popularity, the backup data block to a target storage area corresponding to the popularity. In this way, data with similar popularity can be managed in a more centralized manner, thereby reducing data rewriting caused by subsequent space recycling.

Method for managing backup data by having space recycling operations on executed backup data blocks

The present disclosure relates to a method, device and computer program product for managing a storage system. The storage system comprises a first storage device and a second storage device. In the method, a data object specified by a write request is searched for in the first storage device, the write request specifying the data object that is to be written to the storage system. According to determining that the data object is not present in the first storage device, the second storage device is notified to search for the data object in the second storage device. The data object is written to the storage system according to a search result of searching for the data object in the second storage device. An address mapping of the data object is determined based on an address to which the data object is written in the storage system, where the address mapping indicates an address of the data object in the storage system, and the method is implemented at the first storage device. The storage system may be managed in a more effective way, and the number of storage devices in the storage system may be extended easily. Further, provided are a corresponding device and computer program product.

Method, device, and computer program product for managing storage system

Embodiments of the present disclosure provide a method, a device and a computer program product for transmitting data between different types of storage systems. In one embodiment, for example, the method comprises recovering data from a file to be transmitted in a first backup system. The method also comprises sending the recovered data to a backup client corresponding to a second backup system. In one embodiment, the backup client is installed in a container of the first backup system and the first and the second backup systems belong to different types. The method further comprises transmitting the recovered data from the backup client installed in the first backup system to the second backup system.

Method, device and computer program product for transmitting data

Embodiments of the present disclosure relate to method, device and computer program product for job management. The method comprises: obtaining an execution plan associated with a plurality of backup jobs including a target backup job, the execution plan at least indicating a size of backup data and start times of the plurality of backup jobs; determining, based on the execution plan, a first set of backup jobs to be executed in parallel at a start time of the target backup job; determining a predicted backup speed of executing the first set of backup jobs in parallel at the start time of the target backup job; and determining, at least based on the predicted backup speed and the size of the backup data of the target backup job, time required for executing the target backup job. Accordingly, the time required for executing the backup jobs can be more accurately predicted.

Method, device and computer program product for job management

Embodiments of the present disclosure relate to a method, device, and computer program product for scheduling backup jobs. There is provided a method of scheduling backup jobs, comprising: in response to detecting that a target backup job is generated, obtaining predetermined execution information of the target backup job; determining an execution priority of the target backup job based on the predetermined execution information of the target backup job; determining an execution priority of an existing backup job in a waiting queue; and adding the target backup job to the waiting queue based on the execution priority of the existing backup job and the execution priority of the target backup job. Through embodiments of the present disclosure, it enables better utilization of system resources to achieve the Recover Point Objective for important data, ensuring a Service Level Agreement.

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Chengdu, China

Jun Tang