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Full Discussion: Mount FIle systems from node-1 onto node-2
Operating Systems HP-UX Mount FIle systems from node-1 onto node-2 Post 302907517 by vbe on Sunday 29th of June 2014 05:24:59 AM
Old 06-29-2014
1) Yes, but with disastrous results ( just a question of time (short…)). So that is why you mount VG in SGMC as exclusive the same is true with AIX HACMP etc..
Normally you choose one server as the master, the reason is that server gets all new/change configuration when validated are replicated to the other node (when 2 nodes).
So to be sure you are talking of same VG both sides it is wise to give them same name and same major number when you create the VG on both side…
From home and not having touched to a HP cluster for now 8 years, it is difficult for me to say more…( notes are at work…)
One thing be sure you have same devices both sides, when a VG ( on master) is completed with all its PV and Lv defined, you use vgexport command with -p (preview) to create a map file etc you copy on the second node and use vgimport

2) a cluster is in short 2 servers configured to "host" on or more package that could be seen as virtual servers if you added LUNs that are for a package, they should be included to it… Not the same as creating a new package
There are scripts to help you through, and most important there are scripts after all change to update the package both sides and TEST both sides, the very important part of an admin life with cluster is to check its integrity, if the MCSG checking script fails, you are to correct promptly before anything happens or you will be in big trouble...
 

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LEARN ABOUT DEBIAN

4s-backend-setup

4S-BACKEND_SETUP(1J)						      4store						      4S-BACKEND_SETUP(1J)

NAME

     4s-backend-setup -- Create a new 4store KB

SYNOPSIS

     4s-backend-setup kbname [--node node-number] [--cluster cluster-size] [--segments segment-count] kb-name

		      --node  Number of this node in the cluster, values range from 0 to cluster-size - 1.  The default is 0.

		      --cluster
			      The number of nodes in the cluster.  The default is 1.

		      --segments
			      The number of segments in the cluster. The default is 2. We recommend one for each CPU core in the cluster as a good
			      starting point. Higher numbers tend to consume more resources, but may result in increased performance.

NOTES

     Once crated with 4s-backend-setup KBs should be started with 4s-backend(1)

SEE ALSO

     4s-query(1), 4s-size(1), 4s-httpd(1), 4s-backend(1), 4s-delete-model(1)

EXAMPLES

     $ 4s-backend-setup --node 0 --cluster 1 --segments 4 demo

     Creates the indexes for a single-machine KB with four segments, named "demo".

4store								   May 31, 2019 							    4store
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