Abstract: Various systems and methods can perform block-level deduplication. For example, one method involves sending a chunk of data to a deduplication server for storage in a deduplicated data store. The chunk of data includes multiple blocks. Subsequent to sending the chunk of data to the deduplication server, the method detects that at least one of the blocks has been modified. In response, the method sends associated information as well as the modified blocks, which include at least one but fewer than all of the blocks in the chunk, to the deduplication server. The associated information identifies a location of the included blocks within the chunk of data. The method can be performed by a computing device implementing a deduplication client.

Abstract: Various systems and methods can perform block-level deduplication. For example, one method involves sending a chunk of data to a deduplication server for storage in a deduplicated data store. The chunk of data includes multiple blocks. Subsequent to sending the chunk of data to the deduplication server, the method detects that at least one of the blocks has been modified. In response, the method sends associated information as well as the modified blocks, which include at least one but fewer than all of the blocks in the chunk, to the deduplication server. The associated information identifies a location of the included blocks within the chunk of data. The method can be performed by a computing device implementing a deduplication client.

Abstract: In one embodiment, a computer-implemented method includes the step of accessing a set of data blocks in a local application server disk in an application server. It is determined which of the set of data blocks are used to store data. The data blocks used to store data are read to a deduplication store on the storage appliance. It is determined that a modification occurs to a data block in the local application server disk of the application server. The modification is read to the deduplication store. A remote virtual image of the application server can be generated from the deduplication store.

Abstract: Various systems and methods for sharing data in a virtual environment are disclosed. For example, one method involves receiving a request to access data. The request can be received from a first virtual machine of a plurality of virtual machines. The method then involves retrieving a signature for the data where the signature is stored in a deduplicated data store. Next, the method involves detecting whether the signature is included in a map. In order to do so, the method compares the signature with entries in the map. The entries in the map identify data stored in RAM. The data is also stored in the deduplicated data store. If the signature is found in the map, the method involves granting the request to access the data. Otherwise, the method involves creating a new entry in the map and adding the signature to the new entry.