[LU-5693] LNET configuration for dual ib port/ dual rail Created: 01/Oct/14  Updated: 09/Oct/21  Resolved: 09/Oct/21

Status: Resolved
Project: Lustre
Component/s: None
Affects Version/s: Lustre 2.5.2
Fix Version/s: None

Type: Bug Priority: Critical
Reporter: Atul Yadav Assignee: WC Triage
Resolution: Won't Do Votes: 0
Labels: None
Environment:

Centos 6.5
mellanox 2 switch
Dell server with 2 IB ports


Epic/Theme: Dual-Rail, LNET, lustre-2.5.2
Story Points: 100
Severity: 4
Rank (Obsolete): 15938

 Description   

Dear Team,

IB-Switch-1 ib0 ( All IB0 port connected to this switch only) 192.168.2.*
IB-Switch-2 ib1 ( All IB1 port connected to this switch only) 192.168.3.*
Both the IB switch are physically separated.

IO1 ibo 192.168.2.1
IO1 ib1 192.168.3.1
IO2 ib0 192.168.2.2
IO2 ib1 192.168.3.2

Client1 ibo 192.168.2.10
Client1 ib1 192.168.3.10

Goal:- Switch level fail-over

As per the above details we need to configure LNET in such a way if 1 IB switch fail, then the communication should establish from 2 IB switch.

Please guide us to archive the goal

Thank You
Atul Yadav
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