08-12-2010 07:37 AM
Solved! Go to Solution.
11-11-2010 02:02 PM
I forwarded this thread to the product PM team for both VCS and NBU as thought they'd be interested in your input here. They've made a documentation request and also had a suggestion re:
"A scripted process (cluster_add_node) was added for Unix/Linux in NetBackup 6.5 and significantly improved. As far as the script is concerned it’s actually called ‘cluster_add_node’ and should be in /usr/openv/netbackup/bin/cluster/util. The tech note about it is http://www.symantec.com/business/support/index?page=content&id=TECH62860 – this relates to the original version, I can’t find anything about the enhancements in 7.0.
For Windows NetBackup 7.1 (now in beta testing) has an improved cluster installation wizard which performs sanity checks on the underlying VCS setup and also includes an ‘add node’ option.
In NetBackup 7.0.1 we separated clustering of master servers from the general aspects of HA and created a separate “Master Server Clustering Guide.”
Hope this is useful.
Best,
Kimberley
08-12-2010 07:56 AM
08-12-2010 11:32 AM
11-09-2010 07:52 PM
Hi,
I am trying to find some documentation about how to add 3rd node to fail over VCS cluster
for NetBackup. I added the node to ClusterServices group, but what is the best way
to make it visible to NetBackup. I can manually change main.cf and copy over all
/usr/openv/netbackup to the third node, create required links and mount point and it should work, but
hopefully there is better way to do it.
Thanks in advance,
Alex
11-09-2010 09:51 PM
There is simply NO documentation...
*****EDIT*****
see Kimberley's post below for TN.
*************************************
I have personally gone through a long, painful exercise to add a node to an existing cluster. Because cluster_config can ONLY be done on new installations, everything must be done by hand... Copy NBU agent across, create sym links, use 'ha' commands to add new node to cluster and SG, followed by a l-o-n-g nbemmcmd command to add the new node to existing NBU config.
So, just when I thought it was time to write an article to document the process, NBU 7 came out! If the new node is already part of a cluster, the NBU installation will prompt to join existing cluster.
My advice: Upgrade to NBU 7 on existing cluster, then install the new node. PLEASE ensure that rsh is enabled in all directions between all nodes (existing and new) before you start installation of the new node.
11-11-2010 02:02 PM
I forwarded this thread to the product PM team for both VCS and NBU as thought they'd be interested in your input here. They've made a documentation request and also had a suggestion re:
"A scripted process (cluster_add_node) was added for Unix/Linux in NetBackup 6.5 and significantly improved. As far as the script is concerned it’s actually called ‘cluster_add_node’ and should be in /usr/openv/netbackup/bin/cluster/util. The tech note about it is http://www.symantec.com/business/support/index?page=content&id=TECH62860 – this relates to the original version, I can’t find anything about the enhancements in 7.0.
For Windows NetBackup 7.1 (now in beta testing) has an improved cluster installation wizard which performs sanity checks on the underlying VCS setup and also includes an ‘add node’ option.
In NetBackup 7.0.1 we separated clustering of master servers from the general aspects of HA and created a separate “Master Server Clustering Guide.”
Hope this is useful.
Best,
Kimberley
11-11-2010 08:59 PM
Extremely useful, Kimberley! Thanks for the TN - I had no idea that there was such a doc!
I will also find the “Master Server Clustering Guide” right away since I need to replace an cluster node next week!
11-12-2010 07:26 AM
Here's some more info that PM thought would be useful, in terms of a snapshot of the current and previous releases and what has changed.
Pre-7:
a) Windows: Installing on a node in cluster provides the option for add node to an existing resource group (provided one exists)
b) UNIX: Undocumented script (cluster_add_node) and tech note.
NetBackup 7 and onwards:
a) Windows: Same as before. With the upcoming release, more validation before installation.
b) UNIX: Installing on a node in cluster provides the option for add node to an existing resource group. Behaviorally similar to the windows case. Additionally more validation (cluster resource and dependencies) before installation starting 7.
c) UNIX: enhanced logging (/usr/openv/netbackup/logs/cluster) with a configurable debug log level (part of the documentation).
Agents:
The VCS agent has been modified to add a few enhancements and logging capability, but the core functionality still remains the same.