Hewlett-Packard Development Company, L.p.

Reny Paul

Rick Bramley

Taram Sierra Devitt-Carolan

Anil Kumar S R

Karthick Tharakraj

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.

Backup image restore

The present subject matter relates to storage systems. In an example method, a write request is received from a computing device in a data backup mode. Data associated with the write request is written to a primary storage drive of a storage system when the write request is for an unallocated block of the primary storage drive. The data associated with the write request is written to a secondary storage drive of the storage system when the write request is for an allocated block of the primary storage drive.

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Bengaluru, India

Reny Paul