| 摘要 |
Maintaining continuous availability of tape data includes providing a first storage space that contains the tape data, where metadata for the tape data points to the first storage space, creating a data mirroring relationship between the first storage space and a second, separate, storage space, where tape data written to the first storage space is copied to the second storage space, and adjusting the metadata for the tape data to reference the second storage space in response to the first storage space becoming inaccessible. Maintaining continuous availability of tape data may also include suspending access to the tape data prior to adjusting the metadata. Maintaining continuous availability of tape data may also include resuming access to the tape data after adjusting the metadata. |
