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Absent Member.. tech88kur Absent Member..
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How to ensure backup data flows from a dedicated NIC in a multi-NIC environment

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Dear All,

I have all the servers in my environment with 2 NIC cards. ONe of the NIC is dedicated for production and the other one is for backups. How can i make sure that or what is the setting in DP which will force all backups from a particularly dedicated NIC in the host.

Regards

tech88kur

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Micro Focus Expert
Micro Focus Expert

Re: How to ensure backup data flows from a dedicated NIC in a multi-NIC environment

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ooops... here is the reference :

https://softwaresupport.hpe.com/km/KM01024730/hpe_man_DP9.07_Troubleshooting_pdf.pdf

HPE Data Protector
Software Version: 9.07
Troubleshooting Guide

Chapter 2: Troubleshooting Networking and Communication

Hostname resolution problems
An important aspect of the TCP/IP configuration process is the setup of a hostname resolution mechanism.

For successful communication, host A needs to resolve host B by its fully qualified domain name (FQDN).
Resolving a host means that host A can interpret the FQDN of host B and determine its IP address.

Hostname resolution must be provided at least for the following:

l Each client must be able to resolve the address of the Cell Manager and the clients with Media Agents.
l The Cell Manager must be able to resolve the names of all clients in the cell.
l The MoM Server, if used, must additionally be able to resolve the names of all Cell Managers in the MoM
environment.

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Absent Member.. svollrat Absent Member..
Absent Member..

Re: How to ensure backup data flows from a dedicated NIC in a multi-NIC environment

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use the appropriate Hostnames in all configurations and make sure Routing in Network and on especially on host-side is correctly set up. This should ensure the Communication goes through the desired channels, at least for FileSystem-Backups.

Application-Backups, especially MSSQL, Exchange and Sharepoint, may still try different Hostnames unless the private/dedicated LAN you want to use is the primary one. There you can only control where the Data flows by ensuring the Client-Host talks to the correct MediaServer Name/Interface using correct DNS-Name and Host-Routing. Communication with CellServer may still go through another interface, f.E. to retrieve Config-Infos.

A special Option to force communiction to one interface or IP is not implemented as far as I know.

Micro Focus Expert
Micro Focus Expert

Re: How to ensure backup data flows from a dedicated NIC in a multi-NIC environment

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Hello tech88kur,

DP is very strict with HOSTNAME RESOLUTION / REVERSE LOOKUP.

Reference :

 

Basically, the simple rule is one (1) unique HOSTNAME = IP ADDRESS assigned to one (1) NIC.

Ensure each NIC has an assigned unique HOSTNAME/IP ADDRESS, have it defined/configured as DP client and then configure your backup to use one of the assigned hostname - the NIC where you want all network traffic to go INTO/FROM.

Hope this helps

Sherman

HPE DP Support Eningeer

 

Micro Focus Expert
Micro Focus Expert

Re: How to ensure backup data flows from a dedicated NIC in a multi-NIC environment

Jump to solution

ooops... here is the reference :

https://softwaresupport.hpe.com/km/KM01024730/hpe_man_DP9.07_Troubleshooting_pdf.pdf

HPE Data Protector
Software Version: 9.07
Troubleshooting Guide

Chapter 2: Troubleshooting Networking and Communication

Hostname resolution problems
An important aspect of the TCP/IP configuration process is the setup of a hostname resolution mechanism.

For successful communication, host A needs to resolve host B by its fully qualified domain name (FQDN).
Resolving a host means that host A can interpret the FQDN of host B and determine its IP address.

Hostname resolution must be provided at least for the following:

l Each client must be able to resolve the address of the Cell Manager and the clients with Media Agents.
l The Cell Manager must be able to resolve the names of all clients in the cell.
l The MoM Server, if used, must additionally be able to resolve the names of all Cell Managers in the MoM
environment.

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