Triggered data shelving to a different storage system and storage deallocation

摘要

A data volume may be shelved based at least in part on statistical triggers associated with the data, a user of the data, or a system configured to store and/or manage the data. Upon receiving a request to detach a data volume from a computing device, a determination of whether the data volume should be shelved may be made. In some aspects, the data volume may be shelved by moving the data to another storage system, storing an identifier of the data volume, and de-allocating space associated with the shelved data such that the shelved data is no longer maintained in the storage system. Further, in some aspects, upon a request to attach the data volume, the data may be moved back, the original identifier may be re-assigned to the data volume, and the data volume may be re-attached to the computing device.

主权项

1. A computer-implemented method for data storage management, comprising:
under control of one or more computer systems configured with executable instructions,
receiving a request to detach a data volume from a computing device, the data volume having storage space allocated to the data volume in a first storage system and having a data volume identifier;detaching the data volume from the computing device based at least in part on the received request;subsequent to said detaching, determining, based at least in part on a triggering event signal, whether to shelve the detached data volume;when it is determined to shelve the detached data volume:
causing a snapshot of the detached data volume to be stored in a second storage system; andde-allocating the storage space in the first storage system such that the storage space is available for use other than maintenance of the detached data volume; andupon receipt of an attachment request referencing the data volume identifier and a particular computing device, reconstructing the data volume associated with the data volume identifier in the first storage system using the stored snapshot;assigning the data volume identifier to the reconstructed data volume; andattaching the reconstructed data volume to the particular computing device.