09-14-2019
New to AIX: How do I setup high availability on an AIX System
I am new to AIX but not new to unix.
I have an interview for an AIX systems admin position and I know they want someone who has knowledge of High Availability, Failover and LPARs
From my research so far, It appear powerha is used to setup high availability and failover on Power systems but is this the case for all AIX systems or does it differ?
I found documentation on IBM Knowledge Center for setting up High availability using PowerHA but I do not know if this would be the process on all aix systems.
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LEARN ABOUT HPUX
cmhaltserv
cmhaltserv(1m) cmhaltserv(1m)
NAME
cmhaltserv - halt a service from the high availability package halt script
SYNOPSIS
cmhaltserv [-v] service_name
DESCRIPTION
cmhaltserv is used only in the high availability package halt script to halt a service.
To stop a package service, the running package halt script must be running as superuser(UID=0), or as a user with access policy of
FULL_ADMIN allowed in the cluster configuration file. See access policy in cmquerycl(1) or cmmakepkg(1).
If any part of a package is marked down, the package halt script is executed as part of the recovery process.
This command sends a SIGTERM signal to the PID and the corresponding process group of the monitored service. If this signal is caught by
the running application, it is up to the application to ensure that the processes will be terminated.
Options
cmhaltserv supports the following options:
-v Verbose output will be displayed.
RETURN VALUE
cmhaltserv returns the following values:
0 Successful completion.
1 Command failed.
EXAMPLES
To halt the service db1, do the following:
# Halt the service db1
cmhaltserv db1
This line should only be executed within a package halt script.
AUTHOR
cmhaltserv was developed by HP.
SEE ALSO
cmmakepkg(1m), cmquerycl(1m), cmmodnet(1m), cmrunserv(1m).
Requires Optional Serviceguard Software cmhaltserv(1m)