Fabric Manager Users Guide, Version 6.1, Revision A - QLogic

4–Virtual Fabrics
Configuration
Table 4-3. VirtualFabric Parameters (Continued)
Parameter
Description
QOS
HighPriority
Bandwidth
PktLifeTimeMult
When On (1), the Subnet Manager provides QoS for
this vFabric and between other vFabrics.
When Off (0), the Subnet Manager is free to manage
SLs and VLs as it chooses, and there are no guarantees.
If set to 1, this indicates the vFabric is for high-priority
traffic that does not require any bandwidth limiting. This
would typically include management or control traffic,
which is low bandwidth, but critical to process in a
timely manner. An example is SA traffic where there is
no reason to restrict bandwidth since it is low volume,
but it needs to be serviced at a high priority.
When priority is set to High, any bandwidth allocation is
ignored for this vFabric.
This is the minimum percentage (1–100%) of bandwidth
that should be given to this vFabric relative to
other low-priority vFabrics. When there is no contention,
this vFabric could get more than this amount.
If unspecified, the SM evenly distributes the remaining
bandwidth among all the vFabrics with unspecified
bandwidth.
Total bandwidth for all enabled vFabrics with QoS
enabled must not exceed 100%.
If HighPriority is specified, this field is ignored.
Amount to multiply PktLifeTime by when reported by
SM for this vFabric. This can permit extra time in
PathRecords (and therefore end-to-end timeouts) to
account for delays in low-priority vFabrics that are
given low-bandwidth allocations.
The value is rounded up to the next power of two.
0 is invalid; default is 1.
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