1. A method for facilitating management of resources in a storage pool of external virtual memory, comprising: (a) by a storage manager of a storage system, creating a pool for accommodating resources permitted to be managed by a host and associating the host with said pool; (b) by the storage manager, creating a handle for granting access to said pool by the host and attaching the handle to the host and to said pool; (c) receiving by the storage manager, from the host, a management command embedded in an I/O (input/output) command that utilizes the handle, wherein the management command is for managing of a resource in the pool; and (d) by the storage manager, executing the command in said pool, if the pool is assigned to the host.