A multiple file system and/or multi-host single instance store technique includes receiving one or more commands and one or more parameters to create a single instance store, a plurality of volumes and one or more file systems. Information creating the plurality of volumes, including creating a plurality of thin volumes on top of a single instance store solution, are stored in a volume manager configuration file. Information creating the one or more file systems, wherein each file system is created on top of the plurality of volumes including the plurality of thin volumes, are stored in a file system configuration file.