Abstract: An apparatus, system, and method are disclosed for a virtual machine backup. A name module establishes an administrative machine name for a virtual machine. A space module associates at least one administrative name space with the administrative machine name. A backup module backs up files belonging to the virtual machine using a backup proxy, wherein the files are segregated under the administrative machine name and are accessible using only a secure key belonging to the virtual machine and without using a backup proxy secure key. A mask module masks out pathname components for each backup file pathname so that the backup file pathname is equivalent to a virtual machine file pathname.

Abstract: Provided are a method, system, and article of manufacture for backing-up and restoring files including files referenced with multiple file names. Files to backup are determined. A determination is made from the files to backup files referenced with multiple names. An entry is created for each file to backup in a backup directory indicating file attributes and each name used to reference the file. The determined files and the backup directory are backed-up.

Abstract: Provided are a method, system, and article of manufacture for backing-up and restoring files including files referenced with multiple file names. Files to backup are determined. A determination is made from the files to backup files referenced with multiple names. An entry is created for each file to backup in a backup directory indicating file attributes and each name used to reference the file. The determined files and the backup directory are backed-up.

Abstract: Provided are a method, system, and article of manufacture for backing-up and restoring files including files referenced with multiple file names. Files to backup are determined. A determination is made from the files to backup files referenced with multiple names. An entry is created for each file to backup in a backup directory indicating file attributes and each name used to reference the file. The determined files and the backup directory are backed-up.

Abstract: An apparatus, system, and method are disclosed for a virtual machine backup. A name module establishes an administrative machine name for a virtual machine. A space module associates at least one administrative name space with the administrative machine name. A backup module backs up files belonging to the virtual machine using a backup proxy, wherein the files are segregated under the administrative machine name and are accessible using only a secure key belonging to the virtual machine and without using a backup proxy secure key. A mask module masks out pathname components for each backup file pathname so that the backup file pathname is equivalent to a virtual machine file pathname.

Abstract: Provided are a method, system, and article of manufacture for backing-up and restoring files including files referenced with multiple file names. Files to backup are determined. A determination is made from the files to backup files referenced with multiple names. An entry is created for each file to backup in a backup directory indicating file attributes and each name used to reference the file. The determined files and the backup directory are backed-up.

Abstract: A system and method to optimize memory usage during data backup. The system generates lists of files and attributes corresponding to local files and backup files, selectively allocates storage of the lists to the hard disk and/or memory, compares the lists, and updates the backup files to reflect differences between the local files and the backup files. At least a portion of the lists may be allocated to hard disk storage based on preestablised criteria such as historical memory usage, a dynamic determination of the amount of available memory relative to the amount of memory needed to perform a current backup, or a prior determination of the amount of available memory compared to the amount of memory required to perform a current backup. In this manner, the present invention efficiently utilizes memory resources to perform incremental backup procedures quickly and reliably and facilitates large scale file backup.