服务器(Server)与存储(Storage)通过FC HBA网卡连接S6800的SW1、2交换机,服务器需要访问存储设备,但是SW1与SW2交换机之间互联的接口没有多余FC模块,仅能使用普通的以太网光模块进行互联。因此需要SW1、SW2设备部署FCoE+FC方式实现Server与Storage之间互访。
具体SW1、SW2部署方式,请参考如下配置:
SW1交换机关键配置如下:
#
fcoe-mode fcf
#
vsan 100
domain-id 1 static
zone mode enhanced
zone default-zone permit
zone name S1-1
pairwise-zoning enable
member pwwn 20:11:00:02:ac:00:a1:f9 target //存储FC网卡WWN
member pwwn 51:40:2e:c0:00:55:cc:20 initiator //服务器FC网卡WWN
zoneset name S-1
member S1-1
zoneset activate name S-1
delete zone database all
#
vlan 100
fcoe enable vsan 100
#
interface Fc1/2/1
fc mode f
port access vsan 100
qos trust dot1p
#
interface Vfc120
fc mode e
port trunk vsan 100
bind interface Ten-GigabitEthernet1/0/1
#
interface Ten-GigabitEthernet1/0/1
port link-mode bridge
port link-type trunk
port trunk permit vlan 1 100
priority-flow-control auto
priority-flow-control no-drop dot1p 3
qos trust dot1p
#
SW2交换机关键配置如下:
#
fcoe-mode fcf
#
vsan 100
domain-id 2 preferred
zone mode enhanced
zone default-zone permit
zone name S1-1
pairwise-zoning enable
member pwwn 20:11:00:02:ac:00:a1:f9 target //存储FC网卡WWN
member pwwn 51:40:2e:c0:00:55:cc:20 initiator //服务器FC网卡WWN
zoneset name S-1
member S1-1
zoneset activate name S-1
delete zone database all
#
vlan 100
fcoe enable vsan 100
#
interface Fc1/2/1
fc mode f
port access vsan 100
qos trust dot1p
#
interface Vfc120
fc mode e
port trunk vsan 100
bind interface Ten-GigabitEthernet1/0/1
#
interface Ten-GigabitEthernet1/0/1
port link-mode bridge
port link-type trunk
port trunk permit vlan 1 100
priority-flow-control auto
priority-flow-control no-drop dot1p 3
qos trust dot1p
#
通过上述方式部署后,在SW1、SW2上分别查看名称服务数据库信息,均能够看到Server与Storage的PWWN,可实现服务器与存储设备之间互访。
[SW1]dis fc name-service database
VSAN: 100
FCID Type PWWN(vendor) FC4-type:feature
0x010000 0x01(N) 20:11:00:02:ac:00:a1:f9 SCSI-FCP:Target
0x010001 0x01(N) 51:40:2e:c0:00:55:cc:20 SCSI-FCP:Initiator
......
[SW2]dis fc name-service database
VSAN: 100
FCID Type PWWN(vendor) FC4-type:feature
0x010000 0x01(N) 20:11:00:02:ac:00:a1:f9 SCSI-FCP:Target
0x010001 0x01(N) 51:40:2e:c0:00:55:cc:20 SCSI-FCP:Initiator
......
注意,虽然SW2上vsan 100中配置了domain-id 2 preferred,但是其存储(PWWN:20:11:00:02:ac:00:a1:f9)的domain-id为1(FCID 0x010000)。为什么存储FC网卡的domian不采用SW2的domain-id,而是采用SW1的domain-id 1呢?这是由于一个VSAN内选择了SW1为主交换机,该VSAN内的存储或服务器均采用主交换机的domain-id。
选择主交换机判断依据为:
1、FCF优选级数值越小越优先
2、交换机WWN号越小越优先
对于SW1和SW2其优先级均采用默认的优先级Priority 128,但是SW1的WWN小于SW2的WWN,因此VSAN100选择SW1作为主交换机。
[SW1]display fc domain vsan 100
Running time information:
State: Stable
Switch WWN: 10:00:0c:da:41:98:52:27 //SW1的WWN号小于SW2的WWN号,因此做为VSAN100主交换机
Fabric name: 10:00:0c:da:41:98:52:27
Priority: 128
[SW2]display fc domain vsan 100
Running time information:
State: Stable
Switch WWN: 10:00:0c:da:41:9d:fe:35
Fabric name: 10:00:0c:da:41:9d:fe:35
Priority: 128
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