摘要:
Methods, system and computer program product are provided to improve the efficiency of data transfers in a PPRC environment. Any or all of three features may be implemented, each of which reduces the number of round trips required for the exchange of handshaking, data and control information. A first feature includes disabling the “transfer ready” acknowledgment which normally occurs between a primary storage controller and a secondary storage controller. A second feature includes pre-allocating payload and data buffers in the secondary storage controller. A third feature includes packaging write control information with a write command in an extended command descriptor block (CDB). Such a step eliminated the need for a separate transmission of the write control information. The CDB is transmitted along with a data block from the primary storage controller to the secondary storage controller and placed in the respective, pre-allocated buffers. Data may also be pipelined to the secondary. By decreasing the response time for data transfers, the distance separating the primary and secondary storage controllers may be increased.
摘要:
System and computer program product are provided to configure a path between nodes through a fabric in a fibre channel storage area network (SAN). A node name is provided for a target node on the SAN and a port name is provided for each port in the target node. A relationship is established in a data structure between each port name and a slot in which each port is physically located in the target node. Prior to configuring a path between a source node and a port in the target node, the ports which are physically connected and logged in to the fabric are identified by port address. The port names corresponding to the port addresses are then identified. The port names are used to generate interface_ids of the ports corresponding to the physical slots in which the ports are located. A data structure is created to maintain the relationship between interface_ids and port names. To establish a path connection between a port in the source node and a selected port in the target node, the node name of the target node and the interface_id of the selected port are input to the data structure and the port name of the selected port is output. The port name is then used to obtain the address of the selected port and an I/O session path opened between the source and target nodes.
摘要:
Methods, system and computer program product are provided to configure a path between nodes through a fabric in a fibre channel storage area network (SAN). A node name is provided for a target node on the SAN and a port name is provided for each port in the target node. A relationship is established in a data structure between each port name and a slot in which each port is physically located in the target node. Prior to configuring a path between a source node and a port in the target node, the ports which are physically connected and logged in to the fabric are identified by port address. The port names corresponding to the port addresses are then identified. The port names are used to generate interface_ids of the ports corresponding to the physical slots in which the ports are located. A data structure is created to maintain the relationship between interface_ids and port names. To establish a path connection between a port in the source node and a selected port in the target node, the node name of the target node and the interface_id of the selected port are input to the data structure and the port name of the selected port is output. The port name is then used to obtain the address of the selected port and an I/O session path opened between the source and target nodes.
摘要:
System and computer program product are provided to configure a path between nodes through a fabric in a fibre channel storage area network (SAN). A node name is provided for a target node on the SAN and a port name is provided for each port in the target node. A relationship is established in a data structure between each port name and a slot in which each port is physically located in the target node. Prior to configuring a path between a source node and a port in the target node, the ports which are physically connected and logged in to the fabric are identified by port address. The port names corresponding to the port addresses are then identified. The port names are used to generate interface_ids of the ports corresponding to the physical slots in which the ports are located. A data structure is created to maintain the relationship between interface_ids and port names. To establish a path connection between a port in the source node and a selected port in the target node, the node name of the target node and the interface_id of the selected port are input to the data structure and the port name of the selected port is output. The port name is then used to obtain the address of the selected port and an I/O session path opened between the source and target nodes.
摘要:
Computer networks are provided with a resource efficient ability to generate link performance statistics. Two counters accumulates the number of I/O operations processed by a link and the time required by the link to complete each I/O operation. The average link utilization per I/O operation may then be calculated. The number of operations per second for a link may be computed by dividing the output from the first counter by a predetermined period of time and the average number of operations using the link may be computed by dividing the output from the second counter by the predetermined period of time. An optional third counter may be employed to accumulate the number of bytes transferred by a link during each I/O operation and used to compute the average size of an I/O operation. The generated statistics are useful for such activities as problem resolution, load balancing and capacity planning.
摘要:
Systems, devices, and methods for cultivating biomasses. A bioreactor system is operable for growing photosynthetic organisms. The bioreactor system includes a bioreactor and a lighting system. The lighting system includes one more light-emitting substrates configured to light at least some of a plurality of photosynthetic organisms retained in the bioreactor.
摘要:
The present invention provides a prophylactic light activated treatment method for subjects at risk of a plaque-mediated thrombotic event, such as acute coronary syndromes. In one embodiment, the subject receives a dose of photosensitizer sufficient to result in a concentration of photosensitizer in the neovascularization associated with atherosclerotic disease to permit effective photodynamic therapy. Light of a wavelength that excites the photosensitizer, but that does not to any significant extent penetrate to an adventitial layer of the blood vessel, is applied to the region of the blood vessel. The therapeutic light dose, which may be applied in sequential stages, is sufficient to cause closure of neovasculature leakage and lead to plaque stabilization and reduced adverse clinical outcomes. The present invention further provides light transmission devices and systems useful in carrying out the methods of the present invention.
摘要:
The efficacy of light activated therapy treatment is enhanced by stimulating the immune system of the patient substantially above the pre-therapy level. Abnormal tissue that is destroyed by the light activated therapy releases factors that stimulate the immune system, leading to systemic reductions in abnormal tissue (i.e., reduction beyond the area treated using light), so long as the light therapy conditions favor apoptosis over necrosis. The volume of abnormal tissue destroyed is maximized to the extent possible, reducing tumor load, which reduces an amount of immunosuppressive factors in the body, enabling stimulation of the immune system to be successful.
摘要:
The efficacy of light activated therapy treatment is enhanced by use of additional therapeutic agents. Abnormal tissue is destroyed by light activated therapy, and the associated administration of one or more additional therapeutic agents can synergistically enhance the therapy. For example, the concepts disclosed herein encompass the use of the following agents in combination with light activated drug therapy: (1) agents that selectively inhibit heat shock protein 90 (Hsp90); (2) agents that inhibit the Hedgehog pathway (which is believed to play a central role in allowing the proliferation and survival of certain cancer-causing cells, and which is implicated in many of the most deadly cancers); and, (3) agents for reducing the anti-apoptotic effects of Bcl-2 or Bcl-xL. These agents can be used with light activated drug therapy individually, or in various combinations and permutations.
摘要:
A point-to-point radio frequency unit/antenna has a flat antenna, preferably a continuous transverse stub antenna, integrated into the housing of the microwave unit. The radio frequency unit/antenna includes a housing having an exterior wall, a microwave radio frequency transceiver electronics package within the housing and having an antenna connection, and a flat antenna affixed to one face of the exterior wall of the housing. A microwave radio frequency feed communicates between the flat antenna and the antenna connection of the microwave transceiver electronics package. There is preferably a bracket structure on another face of the housing to affix the housing to a support.