NBU7.7两个MASTER SERVER建立TRUSTED MASTER SERVER问题
两台新建立的MASTER SERVER,分别在不同地点（网络路由可通，无NAT），现拟准备建立 AIR（AUTO IMAGE REPLICATE）功能，实现备份数据的容灾备份；按步骤建立到增加信任主管理服务器时，出现问题，报“remote master server could not establish AT trust from ”；
在这之前报的是两台服务器MASTER SERVER TRUST RELATIONSHIP的问题，我查了是两台服务器时间异步问题，已经处理了。然后就这样了。
后面再次尝试，出现THE REMOTE MASTER SERVER IS NOT REACHABLE(5613)
日志如下:
ErrorHandler--->(getDeviceMonitorInfoList) Status Code: 0 -> .
ICACHE.PBXIOPCredsHandler-> ServiceContext registered.
(ObjSvc)Symantec.NetBackup.SL.DeviceMgmt.DeviceManager.aqueryFacet
Request ID: 150
Server: nbu-server-shg
Time Taken: 0ms
Successful:
Reply Status: Successful
ErrorHandler--->(aqueryFacet) Status Code: 0 -> .
vrts.nbu.admin.icache.NBGUIORBConfigurator:NBU-SERVER-SHG:1556:nbsl
jacorb.orb.giop:INFO: ClientConnectionManager: found C
lientGIOPConnection to NBU-SERVER-SHG:1556:nbsl (3c176ce9)
ICACHE.PBXIOPCredsHandler-> ServiceContext registered.
(ObjSvc)Symantec.NetBackup.SL.DeviceMgmt.DriveQueryFacet.getRBPendingRequests
Request ID: 152
Server: nbu-server-shg
Time Taken: 0ms
Successful:
Reply Status: Successful
ErrorHandler--->(getRBPendingRequests) Status Code: 0 -> .
(SR-1)execCommand:
Protocol Code: 1
Status: 237
Time Taken: 348629ms
Error Msg: Trusted master operation failed
Server Locale: zh_CN
TO: "/usr/openv/netbackup/bin/admincmd/nbseccmd" -setuptrustedmaster
-add -masterserver nbu-server-shg -remotemasterserver NBU-SERVER -username root
-e -domainname unixpwd
FROM: Trusted master operation failed
FROM: The remote master server is not reachable(5613)
Aux data: null
请求支持，如何处理这个不同备份域之间MASTER SERVER建立TRUSTED MASTER SERVER的问题，有什么前提需要特别注意的吗？
汇报一下，问题解决了。原来是防火墙必须双向开通，可能通信过程中占用动态端口，日志如下：
ErrorHandler--->(getDeviceMonitorInfoList) Status Code: 0 -> .
ICACHE.PBXIOPCredsHandler-> ServiceContext registered.
(ObjSvc)Symantec.NetBackup.SL.DeviceMgmt.DeviceManager.aqueryFacet
Request ID: 150
Server: nbu-server-shg
Time Taken: 0ms
Successful:
Reply Status: Successful
ErrorHandler--->(aqueryFacet) Status Code: 0 -> .
vrts.nbu.admin.icache.NBGUIORBConfigurator:NBU-SERVER-SHG:1556:nbsl
jacorb.orb.giop:INFO: ClientConnectionManager: found C
lientGIOPConnection to NBU-SERVER-SHG:1556:nbsl (3c176ce9)
ICACHE.PBXIOPCredsHandler-> ServiceContext registered.
(ObjSvc)Symantec.NetBackup.SL.DeviceMgmt.DriveQueryFacet.getRBPendingRequests
Request ID: 152
Server: nbu-server-shg
Time Taken: 0ms
Successful:
Reply Status: Successful
ErrorHandler--->(getRBPendingRequests) Status Code: 0 -> .
(SR-1)execCommand:
Protocol Code: 1
Status: 237
Time Taken: 348629ms
Error Msg: Trusted master operation failed
Server Locale: zh_CN
TO: "/usr/openv/netbackup/bin/admincmd/nbseccmd" -setuptrustedmaster
-add -masterserver nbu-server-shg -remotemasterserver NBU-SERVER -username root
-e -domainname unixpwd
FROM: Trusted master operation failed
FROM: The remote master server is not reachable(5613)
Aux data: null
再次尝试，仍然不成功，但提示变化了，怀疑是通信端口是动态端口的，可能与防火墙通信有关。
ErrorHandler--->(getRBPendingRequests) Status Code: 0 -> .
HostPropertiesDelegate->addRemoveTrustedMasterServer: thread created
"/usr/openv/netbackup/bin/admincmd/nbseccmd" -setuptrustedmaster -add -masterser
ver nbu-server-shg -remotemasterserver NBU-SERVER -username root -e -domainname
unixpwd
(SR-1)execCommand:
Protocol Code: 1
Status: 228
Time Taken: 57876ms
Error Msg: Trusted master operation failed
Server Locale: zh_CN
TO: "/usr/openv/netbackup/bin/admincmd/nbseccmd" -setuptrustedmaster
-add -masterserver nbu-server-shg -remotemasterserver NBU-SERVER -username root
-e -domainname unixpwd
FROM: Trusted master operation failed
FROM: Remote master server could not establish AT trust from this mas
ter server(5604)
Aux data: null
开启经过路由的防火墙后，成功了。原来仅单向防火墙通不行，得双向开通。
HostPropertiesDelegate->addRemoveTrustedMasterServer: thread finished
HostPropertiesDelegate->addRemoveTrustedMasterServer: thread created
"/usr/openv/netbackup/bin/admincmd/nbseccmd" -setuptrustedmaster -add -masterser
ver nbu-server-shg -remotemasterserver NBU-SERVER -username root -e -domainname
unixpwd
(SR-1)execCommand:
Protocol Code: 1
Status: 0
Time Taken: 28860ms
Error Msg:
Server Locale: zh_CN
TO: "/usr/openv/netbackup/bin/admincmd/nbseccmd" -setuptrustedmaster
-add -masterserver nbu-server-shg -remotemasterserver NBU-SERVER -username root
-e -domainname unixpwd
FROM: Trusted master operation successful
Aux data: null
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