Tanti Technology

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Multi-platform UNIX systems consultant and administrator in mutualized and virtualized environments I have 4.5+ years experience in AIX system Administration field. This site will be helpful for system administrator in their day to day activities.Your comments on posts are welcome.This blog is all about IBM AIX Unix flavour. This blog will be used by System admins who will be using AIX in their work life. It can also be used for those newbies who want to get certifications in AIX Administration. This blog will be updated frequently to help the system admins and other new learners. DISCLAIMER: Please note that blog owner takes no responsibility of any kind for any type of data loss or damage by trying any of the command/method mentioned in this blog. You may use the commands/method/scripts on your own responsibility. If you find something useful, a comment would be appreciated to let other viewers also know that the solution/method work(ed) for you.

Thursday, 14 November 2013

Creating a volume group outside of CSPOC in HACMP

Creating a volume group outside of cspoc is not the recommended
method, but certainly running importvg -L will result in unpredictable
 behavior if the volume group does not already exist on the node
you're running the importvg on.
.
importvg -L is used to update a host about changes made to a volume
group, not to create a new volume group.
.
Finally, since this appears to be a vio client on at least one node,
per the previous update by Jesse, the volume groups should be in
enhanced concurrent mode for fast disk takeover (HACMP does not know
how to break reserves on a vio client, so requires that there be no
reserves placed).  In that environment, you should never have to run
the varyonvg -bu/importvg -L for LVM updates, as gsclvmd will ensure
the updates are propogated across the cluster.   For a new vg, which
shouldn't be varied on after it is created, a simple importvg -y
will suffice, once it's added to the resource group and the cluster is
 synced it will be brought online correctly.


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