5.5. 创建分区配置

分区使管理员能够在 InfiniBand 上创建与以太网 VLAN 类似的子网。

重要

如果您使用特定速度（如 40 Gbps）定义分区，这个分区中的所有主机必须至少支持这个速度。如果主机没有满足速度要求，就无法加入该分区。因此，将分区的速度设置为有权加入分区的任何主机支持的最低速度。

先决条件

  • 服务器上安装了一个或多个 InfiniBand 端口

流程

  1. 编辑 /etc/rdma/partitions.conf 文件，以配置分区，如下所示：

    注意

    所有光纤必须包含 0x7fff 分区，所有交换机和所有主机都必须属于那个光纤。

    将以下内容添加到 文件中，以减小速度 10 Gbps 和分区 0x0002 创建 0x7fff 默认分区，其速度为 40 Gbps： 

    # For reference:
# IPv4 IANA reserved multicast addresses:
#   http://www.iana.org/assignments/multicast-addresses/multicast-addresses.txt
# IPv6 IANA reserved multicast addresses:
#   http://www.iana.org/assignments/ipv6-multicast-addresses/ipv6-multicast-addresses.xml
#
# mtu =
#   1 = 256
#   2 = 512
#   3 = 1024
#   4 = 2048
#   5 = 4096
#
# rate =
#   2  = 2.5 GBit/s
#   3  = 10   GBit/s
#   4  = 30   GBit/s
#   5  = 5   GBit/s
#   6  = 20   GBit/s
#   7  = 40   GBit/s
#   8  = 60   GBit/s
#   9  = 80   GBit/s
#   10 = 120   GBit/s

Default=0x7fff, rate=3, mtu=4, scope=2, defmember=full:
    ALL, ALL_SWITCHES=full;
Default=0x7fff, ipoib, rate=3, mtu=4, scope=2:
    mgid=ff12:401b::ffff:ffff   # IPv4 Broadcast address
    mgid=ff12:401b::1           # IPv4 All Hosts group
    mgid=ff12:401b::2           # IPv4 All Routers group
    mgid=ff12:401b::16          # IPv4 IGMP group
    mgid=ff12:401b::fb          # IPv4 mDNS group
    mgid=ff12:401b::fc          # IPv4 Multicast Link Local Name Resolution group
    mgid=ff12:401b::101         # IPv4 NTP group
    mgid=ff12:401b::202         # IPv4 Sun RPC
    mgid=ff12:601b::1           # IPv6 All Hosts group
    mgid=ff12:601b::2           # IPv6 All Routers group
    mgid=ff12:601b::16          # IPv6 MLDv2-capable Routers group
    mgid=ff12:601b::fb          # IPv6 mDNS group
    mgid=ff12:601b::101         # IPv6 NTP group
    mgid=ff12:601b::202         # IPv6 Sun RPC group
    mgid=ff12:601b::1:3         # IPv6 Multicast Link Local Name Resolution group
    ALL=full, ALL_SWITCHES=full;

ib0_2=0x0002, rate=7, mtu=4, scope=2, defmember=full:
        ALL, ALL_SWITCHES=full;
ib0_2=0x0002, ipoib, rate=7, mtu=4, scope=2:
    mgid=ff12:401b::ffff:ffff   # IPv4 Broadcast address
    mgid=ff12:401b::1           # IPv4 All Hosts group
    mgid=ff12:401b::2           # IPv4 All Routers group
    mgid=ff12:401b::16          # IPv4 IGMP group
    mgid=ff12:401b::fb          # IPv4 mDNS group
    mgid=ff12:401b::fc          # IPv4 Multicast Link Local Name Resolution group
    mgid=ff12:401b::101         # IPv4 NTP group
    mgid=ff12:401b::202         # IPv4 Sun RPC
    mgid=ff12:601b::1           # IPv6 All Hosts group
    mgid=ff12:601b::2           # IPv6 All Routers group
    mgid=ff12:601b::16          # IPv6 MLDv2-capable Routers group
    mgid=ff12:601b::fb          # IPv6 mDNS group
    mgid=ff12:601b::101         # IPv6 NTP group
    mgid=ff12:601b::202         # IPv6 Sun RPC group
    mgid=ff12:601b::1:3         # IPv6 Multicast Link Local Name Resolution group
    ALL=full, ALL_SWITCHES=full;