1461115561-57a124d1-64a7-4b25-afc4-2800e0fb30fe

1. A method for bonding flat glasses comprising the steps of:
obtaining flat glasses having bonding surfaces with a surface precision degree less than \xbd\u03bb (\u03bb=632.8 nm.);
cleaning the bonding surfaces of the flat glasses;
placing the flat glasses in a clamp;
tightening the clamp until the flat glasses are combined with each other to achieve an optical lens assembly; and
separating the optical lens assembly from the clamp.
2. The method for bonding flat glasses as claimed in claim 1, wherein the cleaning step uses an ultrasonic solution to clean the flat glasses, and then uses a volatile solvent to clean and dry the flat glasses.
3. The method for bonding flat glasses as claimed in claim 1 further comprising a step of examining the flat glasses with an interferometer to check whether contaminants left on the bonding surfaces after the cleaning step.
4. The method for bonding flat glasses as claimed in claim 1 further comprising a step of heating the clamp to decrease time for combining the flat glasses when the clamp is tightened.
5. The method for bonding flat glasses as claimed in claim 3 further comprising a step of blowing dust off the bonding surfaces with an airbrush after the step of examining the flat glasses.
6. the method for bonding flat glasses as claimed in claim 4, wherein the clamp is preferably heated to a temperature between 100\xb0 C. and 250\xb0 C.
7. A method for bonding flat glasses comprising the steps of:
obtaining flat glasses having bonding surfaces with surface precision degree less than \xbd\u03bb (\u03bb=632.8 nm);
cleaning the bonding surfaces of the flat glasses in an ultrasonic solution and a volatile solvent;
examining the flat glasses with an interferometer to check surface precision of the flat glasses and to ensure that no contaminant is on the bonding surfaces;
placing the flat glasses in a clamp;
tightening the clamp until the flat glasses are combined with each other to achieve an optical lens assembly; and
separating the optical lens assembly from the clamp.
8. The method for bonding flat glasses as claimed in claim 7 further comprising a step of heating the clamp to accelerate combination of the flat glasses after the act of tightening the clamp.
9. The method for bonding flat glasses as claimed in claim 7 further comprising a step of removing dust from the bonding surfaces with an airbrush after the act of examining the flat glasses.
10. The method for bonding flat glasses as claimed in claim 8, wherein the clamp is preferably heated to a temperature between 100\xb0 C. and 250\xb0 C.
11. A method for bonding flat glasses comprising the steps of:
obtaining flat glasses having bonding surfaces with surface precision degree less than \xbd\u03bb;
cleaning the bonding surfaces of the flat glasses in an ultrasonic solution and a volatile solvent;
examining the flat glasses with an interferometer to check surface precision of the flat glasses and ensure no contaminant is on the bonding surfaces;
placing the flat glasses in a clamp;
tightening the clamp until the flat glasses are combined with each other to achieve an optical lens assembly;
heating the clamp to a temperature between 100\xb0 C. and 250\xb0 C. to decrease time for combining the flat glasses; and
separating the optical lens assembly from the clamping apparatus.
12. The method for bonding flat glasses as claimed in claim 11 further comprising a step of removing dust from the bonding surfaces with an airbrush after the step of examining the flat glasses.
13. (canceled)

The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

1. A storage system comprising:
a first storage component configured for connection to a host and operative to receive write requests from the host;
a second storage component configured for synchronous data transfer of data from the first storage component; and
a third storage component configured for asynchronous data transfer of data from the first storage component,
the first storage component comprising a first disk controller,
the second storage component comprising a path replacement controller,
the storage system further comprising a first communication path between the path replacement controller and the first disk controller,
the path replacement controller operative to receive a first write request from the host and to communicate data associated with the first write request to the first storage component.
2. The storage system of claim 1 wherein the second storage component is operative to service the first write request by storing the data associated with the first write request to a data volume in the second storage component.
3. A storage system comprising:
a first storage component comprising a disk controller and configured for connection to a host and operative to receive write requests from the host;
a second storage component configured for synchronous data transfer of data from the first storage component;
a third storage component configured for asynchronous data transfer of data from the first storage component;
a fourth storage component comprising a path replacement controller; and
a communication path between the path replacement controller and the first disk controller,
the path replacement controller operative to receive a first write request from the host and to communicate the first write request to the first storage component.
4. A remote copy method in a storage system comprising a first storage sub-system configured for communication with a host system and operative to exchange data with the host, a second storage sub-system in data communication with the first storage sub-system, and a third storage sub-system in data communication with the first storage sub-system, the method comprising:
operating in a first configuration, comprising steps of:
receiving, in the first storage sub-system, first IO requests from the host including first read requests and first write requests;
storing data associated with the first write requests on a data volume in the first storage sub-system;
synchronously transferring data stored in the first storage system to the second storage system; and
asynchronously transferring data stored in the first storage system to the third storage system; and

operating in a second configuration, comprising steps of:
receiving, in the second storage sub-system, second IO requests from the first host including second read requests and second write requests;
communicating the second IO requests to the first storage sub-system;
storing data associated with the second write requests on the data volume in the first storage sub-system;
synchronously transferring data stored in the first storage system to the second storage system; and
asynchronously transferring data stored in the first storage system to the third storage system.
5. A remote copy method in a storage system comprising a first storage sub-system configured for communication with a host system and operative to exchange data with the host, a second storage sub-system in data communication with the first storage sub-system, and a third storage sub-system in data communication with the first storage sub-system, the method comprising:
operating in a first configuration, comprising steps of:
receiving, in the first storage sub-system, first IO requests from the host including first read requests and first write requests;
storing data associated with the first write requests on a data volume in the first storage sub-system;
synchronously transferring data stored in the first storage system to the second storage system; and
asynchronously transferring data stored in the first storage system to the third storage system; and

operating in a second configuration, comprising steps of:
receiving, in the second storage sub-system, second IO requests from the first host including second read requests and second write requests;
storing data associated with the second write requests on a data volume in the second storage sub-system;
synchronously transferring data associated with the second write requests to the first storage system; and
asynchronously transferring data stored in the first storage system to the third storage system.
6. A remote copy method in a storage system comprising a first storage sub-system configured for communication with a host system and operative to exchange data with the host, a second storage sub-system in data communication with the first storage sub-system, a third storage sub-system in data communication with the first storage sub-system, and a fourth storage sub-system in communication with the first storage sub-system, the method comprising:
receiving, in the first storage sub-system, a first write request from the host;
storing first data associated with the first write request to data volumes in the first storage sub-system;
synchronously transferring the first data to the second storage sub-system at a time subsequent to receiving the first write request;
asynchronously transferring the first data to the third storage sub-system at a time subsequent to receiving the first write request;
receiving, in the fourth storage sub-system, a second write request from the host;
communicating the second write request to the first storage sub-system;
storing second data associated with the second write request to data volumes in the first storage sub-system;
synchronously transferring the second data to the second storage sub-system at a time subsequent to receiving the second write request; and
asynchronously transferring the second data to the third storage sub-system at a time subsequent to receiving the second write request.
7. The method of claim 6 further comprising:
receiving, in the fourth storage sub-system, a third write request from the host, wherein the host is no longer able to communicate with the first storage sub-system;
storing third data associated with the third write request to data volumes in the fourth storage sub-system;
synchronously transferring the third data to the second storage sub-system from the fourth storage sub-system at a time subsequent to receiving the third write request; and
asynchronously transferring the third data to the third storage sub-system from the fourth storage sub-system at a time subsequent to receiving the third write request.