NBU5230 (Master Server) unable to communicate with NBU5230 Media Server

Question

Hi Support,

Please I need your urgent assistance.

I am setting up a new NetBackup environment with two NBU 5230 appliances. 1x5230 will serve as the Master/Media server and the other 1x5230 will serve as Media server.

The customer provided a private network, where IPs of both appliances can ping each other. However, after successfully setting up the appliance "Master/Media" I also try to setup the 2nd appliance as "Media server" but I got the errors below:

Could not check if master server 'mbunbuapp01' has any storage objects for storage server 'mutnbuapp01'.

Could not find EMM server of master server 'mbunbuapp01' (48:client hostname could not be found).

NB: After setting up the 1st appliance master/media server, I did added the FQHN of the Media server to be to Settings &gt; NetBackup AdditionalServers Add&nbsp;media-server of the Master/Media, but I still got the errors above.

Because of the above error, I have not been able to setup the 2nd appliance as "Media server" which is suppose to communicate with appliance "Master/Media server"

I also notice ports 5900 and 7578 were not open on the Master/Media server, could this be responsible for the applaince Media server not communication with the Master server.

Thanks in advance,

Felix

amoramo · Accepted Answer

Hi Riaan,

Thank you so much for your support. I have finally solve the issue. I believe it was a mistake on my own part.

Like I said in my first post, these appliances are being configured in a private network no DNS. So I have to update the /etc/hosts files on both the Master and Media server applainces, but I forget to add the Master server details on the Media server /etc/hosts file. Once I discovered this, I quickly added it and restart the Media server setup and it was successful. I have since setup my single domain configuration made up 1x5230 (Master/Media and 1x5230 Media server.

Thanks once again for your support.

Regards,

Felix.

riaanbadenhorst · Answer

Hi Felix

&nbsp;

Do you have name resolution configured for all the IP addresses including the priv network? How do you propose to use the private network?

&nbsp;

Remember the following and then think about the configuration. A server would be installed with a name, lets call it nbumaster, and the appliance maybe as nbumedia. Now you're going to have 2 IP addresses for these devices which basically means you'll have 2 exits leaving the appliance. To add to that, depending on the routing and name resolution, 1 of these exits would be considered the primary exit that will be used.

&nbsp;

If nbumaster knows that it can contact nbumedia accross the primary network it would do so. If the priv network was associated (priv IPs) with nbumaster and nbumedia then it would use those. As you can see, it might get a bit confusing if the default is one, and you're expecting it to use the other.

&nbsp;

My thoughts on the topic is to use the PRIV (Backup) network addresses as the primary address / names for the backup servers (master / media / appliance).

&nbsp;

The ports you mentioned are not related to Netbackup but more to remote console admin of the appliance.

&nbsp;

Things you need to look at is

What name is the master installed with?

Which IP does the appliance resolve when you specify the master's name?

Is it the same network that the appliance would use to talk to the media or do they differ?

amoramo · Answer

Hi Riaan,

Thank you for your reply, both appliances Master/Media and Media uses the same private network with address 10.170.44.xx. This IP addresses is different from the public 10.170.45.xx use to access the appliance during maintenance.

I have setup couples of nbappliances before but not on a private network which I have to manually enter every details like the /etc/hosts files, /etc/resolv.conf etc. Pls do I also need to add the Master server details on the bp.conf file of the Media server applaince to be configured? In my thought, I think this will be updated automatically when the initial setup of the Media server appliance is successful since I've already added the Media server details on the Master server

From the&nbsp;Main_Menu&nbsp;&gt;&nbsp;Settings&nbsp;view, run the following command:

Settings &gt; NetBackup AdditionalServers Add&nbsp;media-server

Please advise,

Thank you,

Felix

riaanbadenhorst · Answer

Hi Felix

Few questions

Do you use DNS in the environment (for windows systems)?
	Have you created DNS entries for the appliances?
	Are the backup clients going to have an interface on the PRIV Network?
	Please post the output of the following commands (you can change the names/IPs but be consistent in your replacement, or pm me the outputs)
		
			from CLI on master
				
					bpclntcmd -self
					nslookup master_server_name
					nslookup master_server_priv_ip
					nslookup master_server_pub_ip
					nslookup media_server_priv_ip
					nslookup media_server_pub_ip
					bpclntcmd -hn master_server_name
					bpclntcmd -hn media_server_name
					cat bp.conf

From CLI on media
				
					bpclntcmd -self
					nslookup master_server_name
					nslookup master_server_priv_ip
					nslookup master_server_pub_ip
					nslookup media_server_priv_ip
					nslookup media_server_pub_ip
					bpclntcmd -hn master_server_name
					bpclntcmd -hn media_server_name

amoramo · Answer

Hi Riaan,

Thanks, I will get back to you shortly with the outputs.

Regards,

Felix

amoramo · Answer

Hi Riaan,

Please find outputs below as requested:

mbunbuapp01 (Master/Media server appliance)
	%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
	mbunbuapp01:/home/maintenance # bpclntcmd -self
	current domain =
	NIS does not seem to be running: (1) Request arguments bad
	gethostname() returned: mbunbuapp01
	host mbunbuapp01: mbunbuapp01.mtn.co.ug at 10.170.44.21
	aliases:&nbsp;&nbsp;&nbsp;&nbsp; mbunbuapp01.mtn.co.ug&nbsp;&nbsp;&nbsp;&nbsp; mbunbuapp01&nbsp;&nbsp;&nbsp;&nbsp; 10.170.44.21
	getfqdn(mbunbuapp01) returned: mbunbuapp01.mtn.co.ug
	mbunbuapp01:/home/maintenance # nslookup mbunbuapp01
	;; connection timed out; no servers could be reached

mbunbuapp01:/home/maintenance # nslookup 10.170.44.21
	;; connection timed out; no servers could be reached

mbunbuapp01:/home/maintenance # nslookup 10.170.45.5
	;; connection timed out; no servers could be reached

mbunbuapp01:/home/maintenance # nslookup 10.170.44.149
	;; connection timed out; no servers could be reached

mbunbuapp01:/home/maintenance # nslookup 10.170.45.133
	;; connection timed out; no servers could be reached

mbunbuapp01:/home/maintenance # bpclntcmd -hn mbunbuapp01
	host mbunbuapp01: mbunbuapp01.mtn.co.ug at 10.170.44.21
	aliases:&nbsp;&nbsp;&nbsp;&nbsp; mbunbuapp01.mtn.co.ug&nbsp;&nbsp;&nbsp;&nbsp; mbunbuapp01&nbsp;&nbsp;&nbsp;&nbsp; 10.170.44.21
	mbunbuapp01:/home/maintenance # bpclntcmd -hn mutnbuapp01
	host mutnbuapp01: mutnbuapp01.mtn.co.ug at 10.170.44.149
	aliases:&nbsp;&nbsp;&nbsp;&nbsp; mutnbuapp01.mtn.co.ug&nbsp;&nbsp;&nbsp;&nbsp; mutnbuapp01&nbsp;&nbsp;&nbsp;&nbsp; 10.170.44.149
	mbunbuapp01:/home/maintenance #
	mbunbuapp01:/usr/openv/netbackup # cat bp.conf
	SERVER = mbunbuapp01
	SERVER = mutnbuapp01.mtn.co.ug
	CLIENT_NAME = mbunbuapp01
	USE_VXSS = PROHIBITED
	VXSS_SERVICE_TYPE = INTEGRITYANDCONFIDENTIALITY
	EMMSERVER = mbunbuapp01
	VXDBMS_NB_DATA = /usr/openv/db/data
	ENABLE_ROBUST_LOGGING = YES
	VERBOSE = 1
	PREFERRED_NETWORK = 192.168.229.0/24 MATCH 10.170.44.21
	NETBACKUP_APPLIANCE_MODE = MANUAL_MASTER_APPLIANCE
	IP_ADDRESS_FAMILY = AF_UNSPEC
	TELEMETRY_UPLOAD = NO
	mbunbuapp01:/usr/openv/netbackup #

%%%%%%%%%%%%%%%%%%%%%%%%%%
	mutnbuapp01 (Media server appliance)
	%%%%%%%%%%%%%%%%%%%%%%%%%%
	nb-appliance:/usr/openv/netbackup # bpclntcmd -self
	current domain =
	NIS does not seem to be running: (1) Request arguments bad
	gethostname() returned: nb-appliance
	host nb-appliance: localhost at 127.0.0.1
	aliases:&nbsp;&nbsp;&nbsp;&nbsp; nb-appliance&nbsp;&nbsp;&nbsp;&nbsp; localhost&nbsp;&nbsp;&nbsp;&nbsp; 127.0.0.1
	&nbsp;getfqdn: File exists
	nb-appliance:/usr/openv/netbackup # nslookup mbunbuapp01
	;; connection timed out; no servers could be reached

nb-appliance:/usr/openv/netbackup #&nbsp; nslookup 10.170.44.21
	;; connection timed out; no servers could be reached

nb-appliance:/usr/openv/netbackup # nslookup 10.170.45.5
	;; connection timed out; no servers could be reached

nb-appliance:/usr/openv/netbackup # nslookup 10.170.44.149
	;; connection timed out; no servers could be reached

nb-appliance:/usr/openv/netbackup # nslookup 10.170.45.133
	;; connection timed out; no servers could be reached

nb-appliance:/usr/openv/netbackup # bpclntcmd -hn mbunbuapp01
	client hostname could not be found
	alter client: mbunbuapp01 : not found. (48)
	nb-appliance:/usr/openv/netbackup # bpclntcmd -hn mutnbuapp01
	host mutnbuapp01: mutnbuapp01.mtn.co.ug at 10.170.44.149
	aliases:&nbsp;&nbsp;&nbsp;&nbsp; mutnbuapp01.mtn.co.ug&nbsp;&nbsp;&nbsp;&nbsp; mutnbuapp01&nbsp;&nbsp;&nbsp;&nbsp; 10.170.44.149
	nb-appliance:/usr/openv/netbackup # cat bp.conf
	SERVER = nb-appliance
	CLIENT_NAME = nb-appliance
	CONNECT_OPTIONS = localhost 1 0 2
	USE_VXSS = PROHIBITED
	VXSS_SERVICE_TYPE = INTEGRITYANDCONFIDENTIALITY
	EMMSERVER = nb-appliance
	HOST_CACHE_TTL = 3600
	VXDBMS_NB_DATA = /usr/openv/db/data
	NETBACKUP_APPLIANCE_MODE = FACTORY_INSTALL
	TELEMETRY_UPLOAD = NO
	nb-appliance:/usr/openv/netbackup #

Regards,

Felix

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NBU5230 (Master Server) unable to communicate with NBU5230 Media Server

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