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A host connected intelligent port and a target connected intelligent port associated with fiber channel edge switches are configured to snoop frames from the host and target and establish flows for acceleration.
The host connected intelligent port and the target connect intelligent port preemptively respond to host and target transmissions to reduce data transfer latency. More specifically, the present invention provides techniques and mechanisms for allowing improved data transfer efficiency for hosts and targets connected to SANs.
A host can obtain data from a device such as a tape device through a fibre channel fabric having a number of fibre channel switches. However, storage area networks are often limited in geographic scope.
Fibre channel fabrics in different geographic areas or separate fibre channel fabrics often have limited ability to interoperate. For example, two separate fibre channel fabrics may be connected through an IP network.
A host device on a first fibre channel fabric can read data from a device on a second fibre channel fabric through the IP network. However, reading data over an IP network from a separate fibre channel network can often be inefficient.
Round trip times for commands and data can often introduce high latency into various storage applications, such as applications involving bulk data transfers or tape backup operations. Some limited acceleration mechanisms are available for improving data transfer efficiency.
However, configuration and management of existing acceleration mechanisms are involved and complicated. Consequently, it is desirable to provide improved techniques for allowing efficient and effective transfer of data between SAN hosts and targets.
A host connected intelligent port and a target connected intelligent port associated with fibre channel edge switches are configured to snoop frames from the host and target and establish flows for acceleration. The host connected intelligent port and the target connected intelligent port preemptively respond to host and target transmissions to reduce data transfer latency.
In one embodiment, a storage area network device is provided. The storage area network device includes a host intelligent port and a processor.
The host intelligent port is operable to snoop a command frame from a host. The processor is operable to identify a flow between the host and a target based on the snooped command frame and determine that the target is associated with a target intelligent port that supports acceleration.
The storage area network device is operable to enable acceleration between the host and the target by preemptively responding to the host with a transfer ready when the host sends a data transfer request. In another embodiment, a technique for accelerating storage area network data transfers is provided.
A command frame from a host is snooped at a host intelligent port associated with a storage area network edge switch. A flow between the host and a target based on the snooped command frame is identified.
It is determined that the target is associated with a target intelligent port that supports acceleration. Acceleration between the host and the target is enabled by preemptively responding to the host with a transfer ready when the host sends a data transfer request.The Cisco MDS I/O Accelerator (IOA) is a SANbased intelligent fabric application that provides SCSI acceleration to significantly improve the number of SCSI I/O operations per second (IOPS) over long distances in a Fibre Channel or FCIP SAN by reducing the .
Which of the following features of the Cisco MDS SAN Extension over IP Package help in. Choose all that apply. A. FCIP write acceleration B.
IVR C. FCIP compression D.
SAN extension tuner Explanation: Show Answer. NX-OS is a network operating system for the Nexus-series Ethernet switches and MDS-series Fibre Channel storage area network switches made by Cisco regardbouddhiste.com evolved from the Cisco operating system SAN-OS, originally developed for its MDS switches.
 It is based on MontaVista Software embedded Linux and is inter-operable with other Cisco operating systems. Symptom: FCIP Port flap with Tape Acceleration and IP Compression enabled and MTU configured at Conditions: Following set of configuration has to applied to FCIP tunnel for the resulting FCIP port flap -Tape Acceleration (TA) -Write Acceleration (required for TA) -IP compression -MTU size Workaround(s): This problem does not manifest if TA is not configured, other parameters remaining .
The HP StoreFabric SNC 16Gb FC/FCIP/FCoE Multi-service Switch (Cisco MDS i) is a flexible switch for deploying SAN extension solutions, distributed intelligent fabric services and cost-effective multi-protocol connectivity for open systems.
The Cisco MDS i for IBM System Storage Support for GbE IP networks with FCIP compression, write acceleration and tape acceleration helps maximum utilization of limited WAN bandwidth; Autosensing 8, 4, 2 and 1 Gbps ports: Designed to provide .