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NPIV_SAN虚拟化

作者:高考题库网
来源:https://www.bjmy2z.cn/gaokao
2021-02-12 09:15
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2021年2月12日发(作者:treatment是什么意思)




Enableing Access Gateway (NPIV) on Brocade







Brocade's flavor of NPIV is called Access Gateway. It's a way to dumb down the switch and make it more of a


pass-through device. When AG is enabled, the switch makes much less routing or switching decisions, and passes


all the traffic to an upstream switch. The upstream switch ports switch to F ports, and the


NPIV switch become N ports.


Trunking doesn't really work, in AG mode. The switch will load balance between uplinks, and fail traffic to another


link in the event of a link failure, but port bandwidth aggregation isn't done.


You can't cascade a switch off of a switch that has AG enabled, so it's only good for edge switches.


I don't think it works with hard zoning, but I'm not going to test it.


The whole switch becomes part of the AD of the upstream switch port.


The


upshot


for


us


is


that


the


switch


doesn't


care


about


fabric


changes.


It


doesn't


recalculate


all


of


the


available


routes ever time there is a fabric rebuild, which should reduce the interruption to the fabric every time there's a


rebuild.


We


had


problems


with


errors


on


ISLs


causing


a


fabric


rebuild,


and


with


so


many


edge


switches


it


was


causing issues for the hosts.


To enable AG


, first switch to the AD that the upstream port, and this switch, is a member of. In my case it was AD1.


And,


your


upstream


port


has


to


have


AG


enabled


(per port


on


the


upstream


switch),


my


48Ks


all


came


with


it


enabled on every port.


Check the AG mode:


sanswa:AD1:root> ag --modeshow


Access Gateway mode is NOT enabled




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Enable AG mode:


he10enc1sanswa:AD1:root> switchdisable


he10enc1sanswa:AD1:root> ag --modeenable


WARNING:


Access


Gateway


mode


changes


the


standard


behavior


of


the


switch.


Please


check


Access


Gateway


Administrator's Guide before proceeding.


Enabling agmode will remove all the configuration data on the switch


including zoning configuration and security database. Please backup your


configuration using configupload.


This operation will reboot the switch.


Do you want to continue? (yes, y, no, n): [no] yes


Access Gateway mode was enabled successfully


Switch is being rebooted...


The switch does a fastboot, which will take several minutes.


After the switch is up, the upstream port looks like:


In switchshow:


...


29 2 13 011d00 id N4 Online F-Port 3 NPIV public


...


And portshow:


SanSW2:AD1:admin> portshow 2/13


portName:




2






11






portHealth: HEALTHY


Authentication: None


portDisableReason: None


portCFlags: 0x1


portFlags: 0x24b03 PRESENT ACTIVE F_PORT G_PORT U_PORT NPIV LOGICAL_ONLINE LOGIN NOELP LED


ACCEPT FLOGI


portType: 10.0


portState: 1 Online


portPhys: 6 In_Sync


portScn: 32 F_Port


port generation number: 92


portId: 011d00


portIfId: 43220012


portWwn: 20:1d:00:05:1e:36:3f:8a


portWwn of device(s) connected:


21:01:00:1b:32:a9:78:e4


21:01:00:1b:32:b0:9a:42


20:00:00:05:1e:88:71:c2


Distance: normal


portSpeed: N4Gbps


Notice the WWNs listed. One is the N port on the switch. The other two are hosts connected to that switch.





3






11









HP


8/24


SAN

< p>
交换机既可用作独立的核心交换机,也可在大型核心到边缘分层存储网络中用作低成本的边


缘交换机,因此既能满足中小企业的需求,也能满足大型企业的需求。



8/24


SAN


交换机还可提供出色的


投资保护。



自适应端口支持向后兼容



1Gb



2 Gb



4 Gb



8 Gb/


秒的设备,极大降低 了部署复杂性和成本,


同时还兼容已安装的设备。



不需要



8 Gbit/


秒接口的企业可为新交换机配备



4 Gbit/



< br>SFP


,同时保留未来


轻松升级至



8


Gbit/




SFP


的能力。



配有



24


个已启用端口的



8/24


SAN


交换机可作为全光纤交换机部


署,或以访问网关模式进行部署,后者可提供到任意



SAN


的连接(默认模式设置为交换机)




访问网关


模式采用



NPIV


交换机标准,将光纤通道连接作为逻辑设备提交给



SAN


光纤。




特性






卓越性能



?



包括所有端口的同步线速支持,以提供高性能系统和高达



384Gb/


秒的全双工总带宽



?



提供更高性能可用性,以及完整的向后与向前投资保护



?



简化



SAN


管理,


无需将应用程序性能需 求与端口速度匹配




高可扩展能力





4






11






?



提供连 接至多厂商光纤环境的无缝服务器连接,


允许多个服务器连接至一个


SAN


光纤设备,


无需增加交


换机域数。



?



允许将两台交换机间的



8


个端口



2



4




8 Gb/


秒)


组成一个单独的逻辑



ISL



速度高达



64 Gb/




128

< br>Gb/


秒全双工)


,以优化带宽利用率并实现负载均衡< /p>




降低的总体拥有成本



?



通过自动路由数据至结构设备内的 所有可用路径,优化结构范围内的性能和负载平衡



?



消除


/< /p>


避免高密度虚拟化服务器环境的性能瓶颈



?



用于优化



SAN


性能和资源利用率的高级结构服






HBA







NPIV


打通


SAN




化最后一




为了让虚拟环境下的服务器与


SAN


环境连接更加弹性和安全,


同时简化

SAN


网络的架构,


NPIV(N_Port ID


Virtualization)


协议因此诞生,相关产品包括光纤 信道


HBA


卡等也在今年陆续到位。






N


端口为主机端连接至光纤交换器的连接端口,


NPIV


即为光纤信道中的一个协议,目的在于让一个


实体的


N


端口可以虚拟出数个


N_Port


ID



NPIV


协议是由国际信息技术 标准委员会


(INCITS)


所制定,其功

能是由光纤信道


HBA


卡提供,但前端的虚拟平台以及后端 的光纤信道交换器也要



能支持。





NPIV


之所以被制定,


一开始是为了虚拟环境所设计,


让不同的虚拟机 器可以对应至不同的


N_Port ID


以区隔不同虚拟机器与


SAN


环境的连接,因而提高安全性 。





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