Abstract: A file system is disclosed that includes an application wide name space instantiated in a global index (Gindex) that is used for accessing objects related to an application. Using the Gindex, a method for cache coherency includes establishing one or more appliances, each defining a storage cluster; establishing one or more tenants spanning across appliances, wherein an application stores objects in file systems associated with the appliances and tenants; establishing a Gindex including metadata relating to objects stored in association with the application; replicating the Gindex to plurality of data centers supporting the tenants; storing an original object at a first data center; storing a cached copy of the object at a second data center; aligning the cached copy using metadata for the object from a local copy of the Gindex.

Abstract: A file system is disclosed that includes an application wide name space instantiated in a global index (Gindex) that is used for accessing objects related to an application. Using the Gindex, a method for cache coherency includes establishing one or more appliances, each defining a storage cluster; establishing one or more tenants spanning across appliances, wherein an application stores objects in file systems associated with the appliances and tenants; establishing a Gindex including metadata relating to objects stored in association with the application; replicating the Gindex to plurality of data centers supporting the tenants; storing an original object at a first data center; storing a cached copy of the object at a second data center; aligning the cached copy using metadata for the object from a local copy of the Gindex.

Abstract: A file system is disclosed that includes an application wide name space used for accessing objects related to an application. The file system includes one or more appliances. Each of the appliances logically define a storage cluster, for instance, a cluster file system. The file system also includes a tenant that logically spans across the one or more appliances. The file system also includes one or more physical file systems arranged within each of the one or more appliances. Further, one or more bucket sets define one or more corresponding physical file systems of a corresponding appliance for the tenant. The system also includes an application wide object name space that is used for accessing objects of an application, wherein the objects are stored in the physical file systems by bucket set across the one or more appliances in association with the tenant.

Abstract: A file system is disclosed that includes an application wide name space instantiated in a global index (Gindex) that is used for accessing objects related to an application. Summary workload statistics are monitored and calculated via a calibrated hierarchical service level agreement (SLA) in a method of operation that includes: establishing a tenant wide name space used for accessing objects of an application stored in physical file systems across one or more appliances, each defining a storage cluster, in association with a tenant logically spanning across the appliances; and monitoring a performance statistic for the application across the tenant.

Abstract: A file system is disclosed that includes an application wide name space instantiated in a global index (Gindex) that is used for accessing objects related to an application. Using the Gindex, a method for cache coherency includes establishing one or more appliances, each defining a storage cluster; establishing one or more tenants spanning across appliances, wherein an application stores objects in file systems associated with the appliances and tenants; establishing a Gindex including metadata relating to objects stored in association with the application; replicating the Gindex to plurality of data centers supporting the tenants; storing an original object at a first data center; storing a cached copy of the object at a second data center; aligning the cached copy using metadata for the object from a local copy of the Gindex.

Abstract: A file system is disclosed that includes an application wide name space used for accessing objects related to an application. The file system includes one or more appliances. Each of the appliances logically define a storage cluster, for instance, a cluster file system. The file system also includes a tenant that logically spans across the one or more appliances. The file system also includes one or more physical file systems arranged within each of the one or more appliances. Further, one or more bucket sets define one or more corresponding physical file systems of a corresponding appliance for the tenant. The system also includes an application wide object name space that is used for accessing objects of an application, wherein the objects are stored in the physical file systems by bucket set across the one or more appliances in association with the tenant.

Abstract: A file system is disclosed that includes an application wide name space instantiated in a global index (Gindex) that is used for accessing objects related to an application. Using the Gindex, a method for cache coherency includes establishing one or more appliances, each defining a storage cluster; establishing one or more tenants spanning across appliances, wherein an application stores objects in file systems associated with the appliances and tenants; establishing a Gindex including metadata relating to objects stored in association with the application; replicating the Gindex to plurality of data centers supporting the tenants; storing an original object at a first data center; storing a cached copy of the object at a second data center; aligning the cached copy using metadata for the object from a local copy of the Gindex.

Abstract: A file system is disclosed that includes an application wide name space instantiated in a global index (Gindex) that is used for accessing objects related to an application. Summary workload statistics are monitored and calculated via a calibrated hierarchical service level agreement (SLA) in a method of operation that includes: establishing a tenant wide name space used for accessing objects of an application stored in physical file systems across one or more appliances, each defining a storage cluster, in association with a tenant logically spanning across the appliances; and monitoring a performance statistic for the application across the tenant.