QLogic OFED+ Host Software User Guide, Rev. B

3–TrueScale Cluster Setup and Administration
QLogic Distributed Subnet Administration
Virtual Fabric “Default”
Virtual
Pkey:
Fabric
0xffff
“Default”
SID Range:
Pkey:
0x0-0xffffffffffffffff
0xffff
SID Range: Virtual 0x0-0xffffffffffffffff
Fabric “PSM_MPI”
Pkey: 0x8002
SID Range: 0x1-0xf
SID Range:
0x1000117500000000-
0x100011750000000f
Looking for for SID SID Ranges Range 0x1-0xf 0x1-0xf and
and 0x1000117500000000-
0x100011750000000f
Infiniband Fabric
Distributed SA
Figure 3-5. Virtual Fabrics with Overlapping Definitions
In Figure 3-5, the fabric administrator enabled the "PSM_MPI" Virtual Fabric
without modifying the "Default" Virtual Fabric. As a result, the Distributed SA sees
two different virtual fabrics that match its configuration file.
In Figure 3-6, the person administering the fabric has created two different Virtual
Fabrics without turning off the Default - and two of the new fabrics have
overlapping SID ranges.
Virtual Fabric “Reserved”
ID: 2
Pkey: 0x8003
SID Range: 0x1-0xf
Virtual Virtual Fabric Fabric “Default” “Default” Pkey: 0xffff
SID Range: Pkey: 0x0-0xffffffffffffffff
0xffff
SID Range:
Virtual
0x0-0xffffffffffffffff
Fabric “PSM_MPI”
ID: 1 Pkey: 0x8002
SID Range: 0x1-0xf
SID Range:
0x1000117500000000-
0x100011750000000f
Virtual Fabric “Default”
Pkey: 0xffff
SID Range: 0x1-0xf
SID
0x1000117500000000-
Range: 0x1000117500000000-
0x100011750000000f
Looking for SID Ranges 0x1-0xf and
Infiniband Fabric
Distributed SA
Figure 3-6. Virtual Fabrics with PSM_MPI Virtual Fabric Enabled
In Figure 3-6, the administrator enabled the "PSM_MPI" fabric, and then added a
new "Reserved" fabric that uses one of the SID ranges that "PSM_MPI" uses.
When a path query has been received, the Distributed SA deals with these
conflicts as follows:
D000046-005 B 3-17