User Manual

In the following policy file example, replace OST* and MDS* with the real port
GUIDs.
qos-ulps
default :0 # default SL (for
MPI)
any, target-port-guid OST1,OST2,OST3,OST4:1 # SL for Lustre OST
any, target-port-guid MDS1,MDS2 :2 # SL for Lustre
MDS
end-qos-ulps
Features Overview and ConfigurationRev 2.3-1.0.1
Mellanox Technologies
110
• OpenSM options file
qos_max_vls 8
qos_high_limit 0
qos_vlarb_high 2:1
qos_vlarb_low 0:96,1:224
qos_sl2vl 0,1,2,3,4,5,6,7,15,15,15,15,15,15,15,15
EDC SOA (2-tier): IPoIB and SRP
The following is an example of QoS configuration for a typical enterprise data center (EDC) with
service oriented architecture (SOA), with IPoIB carrying all application traf
fic and SRP used for
storage.
QoS Levels
• Application traffic
• IPoIB (UD and CM) and SDP
• Isolated from storage
• Min BW of 50%
• SRP
• Min BW 50%
• Bottleneck at storage nodes
Administration
• OpenSM QoS policy file
In the following policy file example, replace SRPT* with the real SRP Target port
GUIDs.
qos-ulps
default :0