User Manual

OpenSM – Subnet ManagerRev 2.0-3.0.0
Mellanox Technologies
160
• OpenSM options file
8.7.2 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 traffic 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
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
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
In the following policy file example, replace SRPT* with the real SRP Target port
GUIDs.
qos-ulps
default :0
ipoib :1
sdp :1
srp, target-port-guid SRPT1,SRPT2,SRPT3 :2