AIX POWERHA/HACMP: Basic commands

POWERHA/HACMP: Basic commands

# IBM PowerHA (formerly HACMP) is IBM's solution for high-availability clusters on the AIX
# Unix and Linux for IBM System p platforms and stands for High Availability Cluster
# Multiprocessing.

# PowerHA can run on up to 32 computers or nodes, each of which is either actively running
# an application (active) or waiting to take over when another node fails (passive). Data
# on file systems can be shared between systems in the cluster.

# - PowerHA 7.1 was released in 2010 and uses the Cluster Aware AIX (CAA) infrastructure
#   available in AIX V6.1 TL 6 and AIX 7.1
# - PowerHA 6.1, Rebranded again to IBM PowerHA SystemMirror for AIX, GA Oct 27 2009
# - HACMP 5.5, Rebranded to IBM PowerHA, GA Nov 2008
# - HACMP 5.4.1, Nov 2007
# - HACMP 5.4, July 2006
# - HACMP 5.3, August 2005
#   [...]



# HACMP SPECIFICS
# ------------------------------------------------------------------------------------------
# * Heartbeat is implemented via a shared Heartbeat disk
# * Fallback policy: possibility of automatic fallback
# * File collection synchronization
# * Cluster validation test (DON'T RUN AS IT MAKES A FULL SET OF TESTS INCLUDING CRASH, etc)



# Show cluster state (continuous output)
# ------------------------------------------------------------------------------------------

root@<server>:/root#> clstat [ -r interval ]

   Cluster status: stable | unstable | reconfig




# Show cluster state (not continuous output)
# ------------------------------------------------------------------------------------------

root@<server>:/root#> cldump




# Check cluster daemons
# ------------------------------------------------------------------------------------------

root@<server>:/root#> lssrc -g cluster

Subsystem         Group            PID          Status
 clstrmgrES       cluster          50136        active
 clinfoES         cluster          139308       active




# Reduced information about ressource groups
# ------------------------------------------------------------------------------------------

root@<server>:/root#> clRGinfo

# RG (Ressource Group): Formed by IP, LVM, AS (application server) & AM (application monitor)
#
#  Ressource Group parameters:
#   - Startup policy
#   - Failover policy
#   - Fallback policy
#   - Site policy: for long-distance intersite clusters




# Complete information about application servers
# ------------------------------------------------------------------------------------------

root@<server>:/root#> cldisp




# ------------------------------------------------------------------------------------------

root@<server>:/root#> smitty [ hacmp | powerha ]
0 (0)
Article Rating (No Votes)
Rate this article
Attachments
There are no attachments for this article.
Comments
There are no comments for this article. Be the first to post a comment.
Full Name
Email Address
Security Code Security Code
Related Articles RSS Feed
How to mirror the rootvg in AIX?
Viewed 4656 times since Mon, May 21, 2018
Recovery AIX system when hang on boot (554 code error).
Viewed 15411 times since Thu, Feb 21, 2019
AIX Errpt - Diag - Alog
Viewed 3356 times since Wed, Mar 20, 2019
AIX Full memory dump configure
Viewed 3205 times since Mon, Jul 16, 2018
AIX - How to get IP and MAC address of ethernet adapter in AIX
Viewed 23815 times since Fri, Jun 8, 2018
Create jfs2 logical volume on AIX
Viewed 4340 times since Thu, Feb 21, 2019
AIX: How to manage network tuning parameters
Viewed 3476 times since Mon, Jun 11, 2018
Part 1, The basics of network troubleshooting
Viewed 5019 times since Tue, May 22, 2018
View mksysb content & restore individual files
Viewed 1653 times since Tue, Jul 17, 2018
Mirroring the rootvg Volume Group for AIX 4.1/4.2
Viewed 2883 times since Mon, May 21, 2018