perfSONAR User Q&A and Other Discussion

["Garnizov, Ivan (RRZE)" <>]

Hello Zhi-Wei Lu,

 

In terms of perfSONAR service, what I would do is follow up on the LS registration process, if the configuration daemon of pS has properly detected the changes. You should be able to observe this both on the local perfSONAR toolkit GUI and in the records of the SLS service designated for the area (you will know which exactly from the logs of the ls_registration daemon). As a result of your successful transition you would expect to see the updated registrations on the perfSONAR Lookup Service Directory http://stats.es.net/ServicesDirectory/ with the correct information.

 

Best regards,

Ivan

 

 

From: [mailto:] On Behalf Of Zhi-Wei Lu
Sent: Donnerstag, 3. Dezember 2015 00:45
To:
Subject: [perfsonar-user] Swapping identities of two perfsonar nodes

 

Hi all,

 

I would like to replace one of our new perfsonar node from the new test IP to the existing production IP. 

I plan to do the following:

 

1.      Prepare new ip/hostname ssh host-keys for both hosts (swap) not activated yet

2.      Updating both systems and reboot

3.      Switch  into single user mode (/sbin/init 1) and start network (I can do this in an IPMI console)

4.      Save /opt/esmond, /opt/perfsonar_ps, and /opt/rh, /var/lib/pgsql, on both servers

5.      Copy (exchange) data from both servers

6.      Shutdown the network, swap cables and activate new network for both servers

7.      Reboot both servers

 

Is there anything that I miss or overlook?  Thank you for your help.

 

Zhi-Wei Lu

IET-CR-Network Operations Center

University of California, Davis

(530) 752-0155