Abstract:
Upon an indication that a Flashcopy backup is not to be ingested, ingesting changed grains and/or a Flashcopy Map (fcmap) of the Flashcopy backup into a repository and dynamically marking the Flashcopy backup for collapse from a first repository into a second repository without breaking a flashcopy chain.
Abstract:
Various embodiments are provided for identifying matching tape volumes for data deduplication in an automated data storage library by a processor. A weak hash function on a selected block of streamed data from a host such that the selected block of streamed data with the weak hash function is further compressed to a reduced block of compressed data. N most similar tape volumes in a tape library may be matched according to the weak hash function for performing a data deduplication operation on the reduced block of compressed data between the N most similar tape volumes, wherein N is a positive integer.
Abstract:
In a hash-based multi-tenancy in a deduplication system, incorporating, as if part of input data, a tenant identification (ID) into a hash value calculation using a single hash based index table for separating data segments in a multi-tenant deduplication system.
Abstract:
A new target volume for a new FlashCopy backup is dynamically allocated by performing at least one attempt to reuse an existing FlashCopy target volume containing older FlashCopy backups that have been previously ingested into a repository and are not currently being used as a source for at least one of a mount task, a clone task, and a restore task. If the at least one attempt to reuse the existing FlashCopy target volume fails, the new target volume is dynamically allocated from a global pool of FlashCopy backup target volumes.
Abstract:
Dynamically allocates a new Flashcopy backup target volume within the single repository for executing a new Flashcopy backup to avoid a collision with one of a mount operation, a restore operation, and a clone operation when dynamically allocating the new Flashcopy target volume for the new Flashcopy backup.
Abstract:
For efficient FlashCopy backup target volume allocation from a shared resource pool while ingesting a FlashCopy backup in a repository, for dynamically allocating a target volume for the new FlashCopy backup, a global pool of FlashCopy backup target volumes and a consistency group in the global pool of FlashCopy backup target volumes is maintained for use by a new FlashCopy backup upon encountering a collision while an existing FlashCopy target volume containing older FlashCopy backups are being ingested into the repository for dynamically allocating a target volume for the new FlashCopy backup.
Abstract:
For efficient FlashCopy backup target volume allocation, a target volume is dynamically allocated for a new FlashCopy backup by reusing an existing FlashCopy target volume containing older FlashCopy backups that have been previously ingested into a repository and are not currently being used as a source for at least one of a mount task, a clone task, and a restore task.
Abstract:
Dynamically allocates a new target volume and a Flashcopy map (fcmap) for ingest upon one of a mount operation and a clone operation breaking a FlashCopy chain for creating a stable FlashCopy Map (fcmaps) for ingest while a Flashcopy backup is mounted.