| 摘要 |
<p>Systems and methods are disclosed herein to automatically replicate and migrate live virtual machine image (VM) files from a primary VM computing device to secondary VM computing devices. The operating parameters (e.g., cost of operation, power consumption, etc.) of a number of secondary VM computing devices are analyzed. Replicas of the primary VM image is stored in the secondary VM devices with operating parameters that meet limiting parameters defined in an SLA. The primary VM image is indexed by its constituent data blocks in an active index, which is compared against a stale index of data blocks. A comparison of the indices will indicate when new data is added to the VM image. The new data is used to update the replicas. Migration is performed by copying the primary VM image or awakening a hibernated secondary VM image replica, and hibernating the current primary VM image.</p> |
