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Status Functionality already exists
Created by Guest
Created on May 20, 2025

RDMA场景下网卡存算分离

计算节点有两种RDMA网卡:mlx_1和mlx_2

存储节点有四张RDMA网卡:mlx_1 mlx_2 mlx_3 mlx_4

我们想实现这么一种组网:

(1)计算节点<->存储节点只使用mlx_1和mlx_2

(2)存储节点<->存储节点(pdisk client->pdisk server)只使用mlx_3和mlx_4

Idea priority Urgent
  • Admin
    THOMAS O'BRIEN
    Jun 13, 2025

    This can be achieved with two virtual fabrics, 1 and 2 (last number after the second slash):

    on the storage nodes:

    verbsPorts="mlx5_1/1/1 mlx5_2/1/1 mlx5_3/1/2 mlx5_4/1/2"

    on the compute node

    verbsPorts="mlx5_1/1/1 mlx5_2/1/1 "

    for details see

    man mmchconfig

    or https://www.ibm.com/docs/en/storage-scale/5.2.3?topic=reference-mmchconfig-command

    under verbsPorts -> fabric