摘要:
The splitting of storage applications and functions into a control path (CP) component and a data path (DP) component is disclosed. Reads and writes may be handled primarily in the DP. The CP may be responsible for discovery, configuration, and exception handling. The CP can also be enabled for orchestrating complex data management operations such as snapshots and migration. Storage virtualization maps a virtual I/O to one or more physical I/O. A virtual target (vTarget) in the virtual domain is associated with one physical port in the physical domain. Each vTarget may be associated with one or more virtual LUNs (vLUNs). Each vLUN includes one or more vExtents. Each vExtent may point to a region table, and each entry in the region table may contain a pointer to a region representing a portion of a pExtent, and attributes (e.g. read/write, read only, no access) for that region.
摘要:
Embodiments of the present invention are related to a device and a method for more efficiently processing Ethernet communications that include FCOE communications. In some embodiments the device is a single device including a combination of an aggregator, a filter and a gateway. Such a combination can be more practical, affordable and efficient than the usual arrangement of a several separate devices. In other embodiments, the device of the present invention can be a combination of a switch and a gateway. In yet other embodiments other types of devices can be used. More generally, embodiments of the present invention can apply to a device or method for processing communications involving a set of two network protocols (first and second protocols) as well as a third protocol, the third protocol being compatible with the first protocol and used to define how to tunnel the second protocol over the first protocol.
摘要:
The splitting of storage applications and functions into a control path (CP) component and a data path (DP) component is disclosed. Reads and writes may be handled primarily in the DP. The CP may be responsible for discovery, configuration, and exception handling. The CP can also be enabled for orchestrating complex data management operations such as snapshots and migration. Storage virtualization maps a virtual I/O to one or more physical I/O. A virtual target (vTarget) in the virtual domain is associated with one physical port in the physical domain. Each vTarget may be associated with one or more virtual LUNs (vLUNs). Each vLUN includes one or more vExtents. Each vExtent may point to a region table, and each entry in the region table may contain a pointer to a region representing a portion of a pExtent, and attributes (e.g. read/write, read only, no access) for that region.
摘要:
Embodiments of the present invention are related to a device and a method for more efficiently processing Ethernet communications that include FCOE communications. In some embodiments the device is a single device including a combination of an aggregator, a filter and a gateway. Such a combination can be more practical, affordable and efficient than the usual arrangement of a several separate devices. In other embodiments, the device of the present invention can be a combination of a switch and a gateway. In yet other embodiments other types of devices can be used. More generally, embodiments of the present invention can apply to a device or method for processing communications involving a set of two network protocols (first and second protocols) as well as a third protocol, the third protocol being compatible with the first protocol and used to define how to tunnel the second protocol over the first protocol.
摘要:
An intelligent network processor is disclosed that provides a PCI express (PCIe) host bus adapter with firmware selectable hardware capabilities and firmware enabled emulation of capabilities not supported by hardware. Support for Fibre Channel (FC) and Gigabit Ethernet (GbE) protocols are provided through the same fabric ports, including multiple port trunking for both protocols. On chip protocol conversion is provided for switching and routing between FC and GbE ports. Switching using the same crossbar module is provided for both FC and GbE protocols. The crossbar module is coupled to directly access external DDR memory so that messages from FC, GbE, and PCIe interfaces may be switched directly to the DDR memory.
摘要:
An intelligent network processor is disclosed that provides a PCI express (PCIe) host bus adapter with firmware selectable hardware capabilities and firmware enabled emulation of capabilities not supported by hardware. Support for Fibre Channel (FC) and Gigabit Ethernet (GbE) protocols are provided through the same fabric ports, including multiple port trunking for both protocols. On chip protocol conversion is provided for switching and routing between FC and GbE ports. Switching using the same crossbar module is provided for both FC and GbE protocols. The crossbar module is coupled to directly access external DDR memory so that messages from FC, GbE, and PCIe interfaces may be switched directly to the DDR memory.
摘要:
An apparatus is envisioned that manages I/O access for host subsystems that share I/O peripherals. Host subsystem ports receive I/O requests from and communicate with the plurality of platforms. A translation circuit, coupled to the host subsystem ports, identifies an I/O request from the host subsystem port as being associated with a particular host subsystem. A plurality of output ports are provided and are coupled to the peripheral I/O devices. A switching element is coupled to the translation circuit and to the output ports, and routes I/O requests to a particular output port. An operations circuit, coupled to the switching element, performs translation and redirection functions on the I/O requests. A management circuit interfaces with the host subsystems. The management circuit manages the use of the output ports and brokers the physical usage of the ports. The apparatus is contained on physical devices distinct from the plurality of platforms.