Dell Emulex Family of Adapters - Manual (Page 224)

OneCommand™ Manager Application P010066-01A Rev. A
8. Managing Adapters and Ports
OCe14000-Series Adapters
224

If storage protocols are assigned to the 2nd and 3rd channels, they must be
different storage protocols.

The 4th and higher channels on a port (if available) can only be assigned NIC or
None.
Bandwidth and LPVID assignments are subject to the following rules:

A channel's logical link can be set to down by setting both the minimum and
maximum bandwidths to 0.

The total of the minimum bandwidths for all enabled channels on a port must
add up 100 percent, except in the case where all the maximum bandwidths are
also 0 (i.e. setting logical link down on all channels).

The maximum bandwidth for each channel must be greater than or equal to the
minimum bandwidth for that channel.

LPVIDs (range 2-4094) must be assigned to all NIC channels and must be
unique across all NIC channels on a port. However, any or all of the LPVIDs on
one port can be repeated on another port.

After changing the LPVIDs or bandwidths on any of channels and clicking
Apply, the changes take effect immediately. No reboot is required.
Default UMC Settings
Since most hosts today do not support ARI, the default UMC settings are designed,
where possible, to prevent enabling functions that require ARI. This prevents you from
enabling channels that will not be seen on the PCI bus when the system boots.
Note: On a four port adapter, when UMC is disabled, if the 3rd function on each port
was already enabled when UMC is enabled, that function will still be enabled.
This case assumes that you enabled the 3rd function previously because ARI
was available.
Note: SR-IOV is not supported with UMC.
When UMC is enabled, the channels are assigned default values based upon the
following rules:
For each port:
1. All enabled functions (i.e. functions not set to "None") will continue to be enabled
running the same protocol before UMC was enabled even if its function number is
greater than 7 (only possible on 4 port adapters).
2. Any channel with a function number less than 8 will be enabled with NIC.
3. Any channel with function number greater than 7 will be set to "None" (i.e. channel
disabled).
4. The minimum bandwidths will be assigned by dividing up 100% as evenly as
possible between the enabled channels.
5. The maximum bandwidths for the enabled channels will be set to 100.
6. Both the minimum and maximum bandwidth for the channels assigned to "None"
will be set to 0.