Q

C – Troubleshooting Useful Programs and Files for Debugging

C.9.8

ipath_checkout

ipath_checkout is a bash script used to verify that the installation is correct and that all the nodes of the network are functioning and mutually connected by the InfiniPath fabric. It is to be run on a front end node, and requires specification of a hosts file:

$ ipath_checkout [options] hostsfile

where hostsfile designates a file listing the hostnames of the nodes of the cluster, one hostname per line. The format of hostsfile is as follows:

hostname1

hostname2

...

ipath_checkout performs the following seven tests on the cluster:

1.ping all nodes to verify all are reachable from the frontend.

2.ssh to each node to verify correct configuration of ssh.

3.Gather and analyze system configuration from nodes.

4.Gather and analyze RPMs installed on nodes.

5.Verify InfiniPath hardware and software status and configuration.

6.Verify ability to mpirun jobs on nodes.

7.Run bandwidth and latency test on every pair of nodes and analyze results.

The possible options to ipath_checkout are:

-h, --help

Displays help messages giving defined usage.

-v, --verbose

-vv, --vverbose

-vvv, --vvverbose

These specify three successively higher levels of detail in reporting results of tests. So, there are four levels of detail in all, including the case of where none these options are given.

-c, --continue

When not specified, the test terminates when any test fails. When specified, the tests continue after a failure, with failing nodes excluded from subsequent tests.

IB6054601-00 D

C-33

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Q-Logic IB6054601-00 D manual Ipathcheckout
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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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