User Manual

Features Overview and ConfigurationRev 2.3-1.0.1
Mellanox Technologies
120
3.2.3 Quality of Service (QoS)
Quality of Service (QoS) requirements stem from the realization of I/O consolidation over an IB
network. As multiple applications and ULPs share the same fabric, a means is needed to control
their use of network resources.
ccti_min Sets the CC Table Index (CCTI) minimum. Default: 0
cct Sets all the CC table entries to a specified value .
The first entry will remain 0, whereas last value
will be set to the rest of the table.
Values: <comma-separated
list>
Default: 0
When the value is set to 0,
the CCT calculation is
based on the number of
nodes.
ccti_timer Sets for all SL's the given ccti timer. Default: 0
When the value is set to 0,
the CCT calculation is
based on the number of
nodes.
Option File Desctiption Values
max_errors
error_window
When number of errors exceeds 'max_errors' of
send/receive errors or timeouts in less than
'error_window' seconds, the CC MGR will abort
and will allow OpenSM to proceed.
Values:
• max_errors = 0: zero tolle-
rance - abort configuration
on first error.
• error_window = 0: mecha-
nism disabled - no error
checking.
Default: 5
cc_statistics_cycle Enables CC MGR to collect statistics from all
nodes every cc_statistics_cycle [seconds]
Default: 0
When the value is set to 0,
no statistics are collected.
Option File Desctiption Values