Storage system and ownership control method for storage system

The storage system comprising:

• a disk device for providing a volume for storing data to a host system;
• a channel adapter for writing data from the host system to the disk device via a cache memory;
• a disk adapter for transferring data to and from the disk device;
• and
• at least one processor package including a plurality of processors for controlling the channel adapter and the disk adapter;
• wherein the processor package includes a processor for incorporatively transferring related types, of a plurality of types, of ownership for each of a plurality of types of resources based on specific control information for managing each of the types of ownership and consolidating the related types of ownership to one processor package,
• wherein the plurality of types of resources include a combination of any of the following:
• a first volume as the volume provided by the disk device;
• a second volume provided by the cache memory for temporarily storing data from the host system;
• an external volume provided by another added disk device to the host system;
• a journal volume to which journal data relating to the data written to the first volume is written;
• and
• at least one port on the channel adapter to which the host system is connected,
• wherein the shared memory includes:
• a shared cache area, for which access is permitted, by all the processors included in the plurality of processor packages;
• an exclusive cache area, for which access is permitted, by the processor having the ownership and access is not permitted by the processor without the ownership;
• and
• a non-cache area for which access is not permitted by all the processors included in the plurality of processor packages;
• wherein when each processor updates data in the shared cache area, it sends a message of the update to all the processors;
• and
• the processor with the ownership sends a message of an update to data in the exclusive cache to the processor without the ownership when the data in the exclusive cache area is updated.

A storage system comprising:

• a disk device for providing a volume for storing data to a host system;
• a channel adapter for writing data from the host system to the disk device via a cache memory;
• a disk adapter for transferring data to and from the disk device;
• and
• at least one processor package including a plurality of processors for controlling the channel adapter and the disk adapter;
• wherein the processor package includes a processor for incorporatively transferring related types, of a plurality of types, of ownership for each of a plurality of types of resources based on specific control information for managing each of the types of ownership and consolidating the related types of ownership to one processor package,
• wherein the processor searches for different types of ownership to be transferred at the same time and transfers the different types of ownership found by the search, as preliminary ownership that is ownership to be handled in advance, from a transfer source to a transfer destination, so that the processor includes the transfer destination control of the channel adapter in accordance with a command received from the host system;
• and
• the processor package includes a second processor included in the transfer source which continues controlling the channel adapter in accordance with a command already received from the host system until the preliminary ownership is assigned;
• and as triggered by the completion of the entire processing of the already received command, the second processor regulates the control of the channel adapter and transfers real ownership as actual ownership to the transfer destination.