Backup image restore
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United States of America Patent
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Oct 29, 2019
Grant Date -
Dec 28, 2017
app pub date -
Jan 30, 2015
filing date -
Jan 30, 2015
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An example apparatus includes a virtual drive controller module to receive a read request from a guest virtual machine (VM) during a restore operation. The apparatus also includes a virtual drive manager module to determine whether data associated with the read request is stored in a storage volume of the guest VM using a sector mapping lookup table during the restore operation. In response to a determination that the data is absent in the storage volume, the virtual drive manager module is to copy the data from a backup image associated with the guest VM to the storage volume, update the sector mapping lookup table to indicate that the data is stored in the storage volume, and transmit the data to the guest VM.
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