Normal VG to Enhanced Concurrent VG Post: 302898870

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Operating Systems AIX Normal VG to Enhanced Concurrent VG Post 302898870 by ibmtech on Thursday 24th of April 2014 03:50:20 PM

04-24-2014

Registered User

1st you need to make sure that "siebelvg" is going to be shared between nodes? if its not then you don't need to enable enhance concurrent on that, and if you are sharing the VG then
Change the VG to Big VG
run

Code:

lsvg siebelvg | egrep "MAX PVs:"   --> look for PV, for normal VG it will be 32

chvg -B siebelvg     --> This will change the VG to Big VG and this is dynamic, no need to varyoff vg.

lsvg siebelvg | egrep "MAX PVs:"   --> The PV no increases to 128

Now run 
lsattr -El siebelvg  --> ( and look for below)
auto_on       y 
....
conc_capable  n
....
Run

chvg -C siebelvg   --> This command will change the VG to enhance concurrent capable, and this is dynamic, no need to varyoff vg.

lsattr -El siebelvg  --> ( and look for below)
auto_on       n     --> Auto varyon will change to no
....
conc_capable  y   --> Enhance concurrent capable is changed to yes.
....

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lsattr

LSATTR(1)						      General Commands Manual							 LSATTR(1)

NAME

       lsattr - list file attributes on a Linux second extended file system

SYNOPSIS

       lsattr [ -RVadlpv ] [ files...  ]

DESCRIPTION

       lsattr lists the file attributes on a second extended file system.  See chattr(1) for a description of the attributes and what they mean.

OPTIONS

       -R     Recursively list attributes of directories and their contents.

       -V     Display the program version.

       -a     List all files in directories, including files that start with `.'.

       -d     List directories like other files, rather than listing their contents.

       -l     Print the options using long names instead of single character abbreviations.

       -p     List the file's project number.

       -v     List the file's version/generation number.

AUTHOR

       lsattr was written by Remy Card <Remy.Card@linux.org>.  It is currently being maintained by Theodore Ts'o <tytso@alum.mit.edu>.

BUGS

       There are none :-).

AVAILABILITY

       lsattr is part of the e2fsprogs package and is available from http://e2fsprogs.sourceforge.net.

SEE ALSO

       chattr(1)

E2fsprogs version 1.44.1					    March 2018								 LSATTR(1)

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