2 – InfiniPath Cluster Administration

Starting and Stopping the InfiniPath Software

Q

To disable the driver on the next system boot, use the command (as root):

#chkconfig infinipath off

NOTE: This does not stop and unload the driver, if it is already loaded.

You can start, stop, or restart (as root) the InfiniPath support with:

#/etc/init.d/infinipath [start stop restart]

This method will not reboot the system. The following set of commands shows how this script can be used. Please take note of the following:

■You should omit the commands to start/stop opensmd if you are not running it on that node.

■You should omit the ifdown and ifup step if you are not using ipath_ether on that node.

The sequence of commands to restart infinipath are given below. Note that this next example assumes that ipath_ether is configured as eth2.

#/etc/init.d/opensmd stop

#ifdown eth2

#/etc/init.d/infinipath stop

...

#/etc/init.d/infinipath start

#ifup eth2

#/etc/init.d/opensmd start

The ... represents whatever activity you are engaged in after InfiniPath is stopped.

An equivalent way to specify this is to use same sequence as above, except use the restart command instead of start and stop:

#/etc/init.d/opensmd stop

#ifdown eth2

#/etc/init.d/infinipath restart

#ifup eth2

#/etc/init.d/opensmd start

NOTE: Restarting InfiniPath will terminate any InfiniPath MPI processes, as well as any OpenFabrics processes that are running at the time. Processes using networking over ipath_ether will return errors.

You can check to see if opensmd is running by using the following command; if there is no output, opensmd is not configured to run:

#/sbin/chkconfig --list opensmd grep -w on

You can check to see if ipath_ether is running by using the following command. If it prints no output, it is not running.

$ /sbin/lsmod grep ipath_ether

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IB6054601-00 D

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Q-Logic IB6054601-00 D manual # chkconfig infinipath off, # /etc/init.d/infinipath start stop restart
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IB6054601-00 D specifications

The Q-Logic IB6054601-00 D is a high-performance InfiniBand adapter card designed for data centers and enterprise applications requiring robust connectivity and low-latency communication. This adapter is part of QLogic's extensive portfolio of networking solutions, catering to the needs of high-performance computing (HPC), cloud computing, and virtualization environments.

One of the standout features of the IB6054601-00 D is its capability to support data transfer rates of up to 56 Gbps. This makes it ideal for applications demanding large bandwidth and quick data processing. The adapter is optimized for RDMA (Remote Direct Memory Access) technology, which allows data to be transferred directly between the memory of different computers without involving the CPU. This reduces latency and CPU overhead, leading to enhanced overall system performance.

The architecture of the IB6054601-00 D includes support for a dual-port design, which offers increased bandwidth, redundancy, and fault tolerance. This dual-port configuration is especially advantageous for environments that require high availability and reliability, such as financial services and mission-critical applications.

The adapter utilizes advanced error detection and correction mechanisms, ensuring that data integrity is maintained during transmission. With features like adaptive routing and congestion management, the IB6054601-00 D is capable of optimizing the handling of data flows, thereby enhancing performance even under heavy loads.

In terms of compatibility, the Q-Logic IB6054601-00 D supports a wide range of operating systems and virtualization technologies, making it easy to integrate into diverse IT environments. It also includes drivers and software packages that facilitate seamless deployment and management.

In addition to high-speed connectivity, the adapter is designed with power efficiency in mind. It adheres to Energy Star regulations, helping organizations lower their operational costs while minimizing their environmental footprint.

Overall, the Q-Logic IB6054601-00 D stands out for its high throughput, low latency, and reliability. Its combination of advanced features and technologies positions it as an excellent choice for organizations looking to enhance their data center performance and maximize the efficiency of their network infrastructure. With the growing demands for faster and more efficient data transfer, solutions like the IB6054601-00 D are essential in meeting the evolving needs of modern enterprises.
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