It is made possible to update information registered in a database of iSNS, SLP and the like in response to a configurational change in a storage device, and for a host computer to discover a disk volume. In response to changes in contents of operation to alter a storage configuration such as in creating or deleting a volume or LUN, contents of the alteration are reflected in the database of iSNS or SLP. Also, in response to a change in setting of LUN masking, a discovery domain of iSNS or attribute values of SLP are updated so that the host computer can discover the disk volume. Also, objects and services are reregistered periodically according to a registration period of iSNS or lifetime of SLP to prevent registered contents from expiring.
A storage control system that makes it possible to integrate the setting of access between initiators and targets connected to a communication network and the setting of LUN security for the targets. The storage control system has: a host computer having one or more initiators; a storage controller having one or more targets and storage areas, and also having a security property-for defining access relationships between-the targets and the storage areas; and a server having a memory for storing correspondence relationships between the initiators and the targets, and a function for notifying the host computer and a storage controller of the correspondence relationships information. The host computer, the storage controller and the server are connected to each other via a communication network, and the storage controller sets, based on notification information from the server, the security property in such a manner that an initiator can access a specified storage area via a target, the initiator and the target having been notified of the notification information.
A method for monitoring according to a hint when allocating a storage volume. When a threshold value violation has occurred, judgement is performed from which use purpose the threshold value derives. The management computer for managing a computer system includes a unit for creating a storage volume according to a hint, a unit for deciding a threshold value for managing the storage volume according to the use purpose of the storage volume, a unit for acquiring a performance value from the storage apparatus, and a unit for comparing the acquired performance value to the threshold value and notifying a warning including a message based on the hint when a threshold value violation is detected.
A resource manager transforms the MPEG7 descriptors into an active and composite storage, processing, and presentation component in a storage area network (e.g. iSCSI). The active component can enable fast search and retrival operation directly on the logical disk blocks which maps well with the multimedia video stream and images data. It can also support content addressable search on the video and image files and play the media blocks directly. In addition, it enables a dynamic configuration of a media processing function after it is loaded in an execution environment. The data block is moved from the iSCSI interface directly into processing modules and presentation modules via decoder, buffer, and constraint control units.
