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Full Discussion: Did a Mistake with HACMP
Operating Systems AIX Did a Mistake with HACMP Post 302249517 by shockneck on Tuesday 21st of October 2008 01:39:05 PM
Old 10-21-2008
Quote:
Originally Posted by azzed27
[...]I just grow the FS, I've not added disks on the cluster. [...]
I'm just preventing the case of a failover, and want to know if I can check that my HACMP is not broken.[...]
Assuming that there are no more unpropagated changes to your cluster environment I think you don't need to worry. Probably the easiest way to react to what you did would be: do nothing. HACMP has a function called lazy update which would detect the change in the FS during failover/takeover and can synchronise the cluster nodes without manual intervention. There are two possible drawbacks to keep in mind though. Firstly: the next takeover will take somewhat longer. Depending on your Resource Group that might or might not be a problem. Secondly: there is the possibility to overload the lazy update if there are several unpropagated changes. In such a case a takeover can fail. So when I said "do nothing" this also means: do not change anything in the cluster again before it is in sync again. Hopefully there weren't any unmanaged changes already before you extended the FS. After it is in sync use CSPOC only to configure the cluster's environment. It might be a good idea to edit the cluster node's herald message to inform root to not use standard AIX configuration commands.

Should you feel unhappy with this, there is also the possibility to update the LVM information on secondary nodes manually.
 

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space(4)							   File Formats 							  space(4)

NAME
space - disk space requirement file DESCRIPTION
space is an ASCII file that gives information about disk space requirements for the target environment. The space file defines space needed beyond what is used by objects defined in the prototype(4) file; for example, files which will be installed with the installf(1M) command. The space file should define the maximum amount of additional space that a package will require. The generic format of a line in this file is: pathname blocks inodes Definitions for the fields are as follows: pathname Specify a directory name which may or may not be the mount point for a filesystem. Names that do not begin with a slash ('/') indicate relocatable directories. blocks Define the number of disk blocks required for installation of the files and directory entries contained in the pathname (using a 512-byte block size). inodes Define the number of inodes required for installation of the files and directory entries contained in the pathname. EXAMPLES
Example 1: A sample file. # extra space required by config data which is # dynamically loaded onto the system data 500 1 SEE ALSO
installf(1M), prototype(4) Application Packaging Developer's Guide SunOS 5.10 7 Feb 1997 space(4)
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