Abstract: In one embodiment, a method is provided for storing data in a physical storage having at least one portion of unused memory, comprising maintaining a first list comprising one or more records associated with respective segments within the unused memory, and receiving a request to store data in at least one logical storage sector associated with the physical storage. A record associated with a segment of the unused memory in which at least some of the data is to be stored is selected from the first list, and the record is updated to include an identifier of the at least one logical storage sector. The record is stored in a second list that associates respective segments with respective logical storage sectors.

Abstract: In one embodiment, a method is provided for storing data in a physical storage having at least one portion of unused memory, comprising maintaining a first list comprising one or more records associated with respective segments within the unused memory, and receiving a request to store data in at least one logical storage sector associated with the physical storage. A record associated with a segment of the unused memory in which at least some of the data is to be stored is selected from the first list, and the record is updated to include an identifier of the at least one logical storage sector. The record is stored in a second list that associates respective segments with respective logical storage sectors.

Abstract: A method for processing requests or commands for writing and reading to and from memory that has not been allocated and reserved for one or more volumes, and a method for establishing one or more volumes, where the one or more volumes define an area of the memory that is accumulatively greater than the actual memory capacity, thus allowing for memory to be added at a later time.

Abstract: A method for processing requests or commands for writing and reading to and from memory that has not been allocated and reserved for one or more volumes, and a method for establishing one or more volumes, where the one or more volumes define an area of the memory that is accumulatively greater than the actual memory capacity, thus allowing for memory to be added at a later time.

Abstract: A method and system for parallel back-up of a plurality of client computers on a network, in particular, a local area network or wide area network. Each client computer has a local storage device that stores files. A number of back-up storage devices are organized into groups, with each back-up storage devices being a member of one group. A server computer is coupled to the plurality of back-up storage devices by a bus and is also coupled to the network. The server computer for executing a back-up job. The server computer accepts parameters for the back-up job, the parameters including a source parameter specifying a set of the client computers and a destination parameter specifying a group. The server computer receives files from each one of the set of client computers specified in the source parameter in parallel. Each received file is stored on one of the back-up storage devices being a member of the group specified in the destination parameter.