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Preface—Intel
Omni-Path Fabric
Best Practices
•
Intel recommends that users update to the latest versions of Intel
firmware and software to obtain the most recent functional and security updates.
•
To improve security, the administrator should log out users and disable multi-user
logins prior to performing provisioning and similar tasks.
•
In order to troubleshoot potential issues with externally-managed edge switches,
Intel recommends that all fabrics contain at least one managed switch.
•
10.8.2.0 firmware introduced a feature to improve the detection of failing cables
while also providing avoidance of possible downstream issues. This avoidance is
accomplished by disabling cable lanes that are failing (i.e., putting the cable in a
degraded mode). Equivalent protection can be achieved by enabling the 48-bit
CRC feature which limits peak bandwidth of the cable by up to 3% while providing
the strongest available protection against a failing cable. Intel recommends the
use of 48-bit CRC when the peak bandwidth is not critical in the fabric.
Due to the improved detection of failing cables provided by 10.8.2.0 firmware, it is
possible that failing cables that were not previously detected by earlier firmware
will now be detected by the 10.8.2.0 firmware. It is expected that the 48-bit CRC
and the 10.8.2.0 firmware detection methods will have similar detection
robustness. When a failing cable is identified, it is important to replace the cable
at the earliest possible convenience.
Laser Safety Information
This product may use Class 1 laser optical transceivers to communicate over the fiber
optic conductors. The U.S. Department of Health and Human Services (DHHS) does
not consider Class 1 lasers to be hazardous. The International Electrotechnical
Commission (IEC) 825 Laser Safety Standard requires labeling in English, German,
Finnish, and French stating that the product uses Class 1 lasers. Because it is
impractical to label the transceivers, the following label is provided in this manual.
April 2020
Doc. No.: H76466, Rev.: 8.0
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Omni-Path
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Intel
Omni-Path Host Fabric Interface
Installation Guide
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