Q-Logic IB0056101-00 G Adapter Settings, 5. LED Link and Data Indicators Continued, LED States

5 – Software Installation Adapter Settings

S

Table 5-5. LED Link and Data Indicators (Continued)

LED States	Indication
Green ON	Signal detected and the physical link is up. Ready to talk
Amber OFF	to SM to bring the link fully up.
	If this state persists, the SM may be missing or the link
	may not be configured.
	Use ipath_control -ito verify the software state. If
	all HCAs are in this state, then the SM is not running.
	Check the SM configuration, or install and run opensmd.
Green ON	The link is configured, properly connected, and ready.
Amber ON	Signal detected. Ready to talk to an SM to bring the link
	fully up.
	The link is configured. Properly connected and ready to
	receive data and link packets.
Green BLINKING (quickly)	Indicates traffic
Amber ON
Green BLINKING a	Locates the adapter
Amber BLINKING	This feature is controlled by ipath_control -b [On
	Off]
Table Notes

aThis feature is available only on the QLE7240 and QLE7280 adapters.

Adapter Settings

The following adapter settings can be adjusted for better performance.

„Use taskset to tune CPU affinity on Opteron systems with the QLE7240, QLE7280, and QLE7140. Latency will be slightly lower for the Opteron socket that is closest to the PCI Express bridge. On some chipsets, bandwidth may be higher on this socket. See the QLogic HCA and InfiniPath Software User Guide for more information on using taskset. Also see the taskset(1) man page.

„Use an IB MTU of 4096 bytes instead of 2048 bytes, if available, with the QLE7240, QLE7280, and QLE7140. 4K MTU is enabled in the InfiniPath driver by default. A switch that supports and is configured for 4KB MTU is also required to use this setting. To change this setting, see “Other Configuration: Changing the MTU Size” on page 5-26.

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