Abstract: A method is used in managing data storage in virtual systems. A data storage system is queried through a universal framework module of the data storage system. The universal framework module includes a first set of interfaces associated with a format used by a virtual system to communicate with the data storage system. Information associated with the data storage is retrieved from a platform specific module of the data storage system. The platform specific module provides the information to the universal framework module. The platform specific module includes a second set of interfaces based on a type of the data storage system.

Abstract: A method is used in sizing volatile memory (VM) cache based on flash-based cache usage. A user selection for a flash-based cache is received. Based on the selection, configuration and sizing factors are provided, by a flash based cache driver, to VM cache size determination logic. Based on the configuration and sizing factors and a sizing formula and rules, a requested VM cache size is produced by the VM cache size determination logic. Based on the requested VM cache size, the VM cache is caused, via VM cache resizing logic, to be resized to the requested VM cache size.

Abstract: A method is used in managing caches for reporting storage system information. A cache is created. The cache includes information associated with a set of storage objects of a data storage system. The information of the cache is made available to a virtual system. The virtual system uses the information for reporting storage system information. The virtual system is notified for retrieving updated storage system information from the cache.