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Full Discussion: Production to DR switch
Special Forums IP Networking Production to DR switch Post 302770095 by bakunin on Thursday 14th of February 2013 12:12:33 PM
Old 02-14-2013
Quote:
Originally Posted by hicksd8
Both node A & B would have their "hardwired - never to change" IP addresses and the cluster suite presents a pseudo ip address to all clients. The clients only ever access this pseudo ip address (and don't know about the real ip addresses). When failover occurs the suite moves the pseudo ip address to the other node and the clients are none the wiser (apart from perhaps a few seconds hang).
This is very similar to what HACMP (IBMs failover software for AIX) does too. In HACMPs wording what you call "pseudo IP" is called "service IP" and technically it is an IP alias, which is moved with the "resource group" (a group of mounted file systems, start-/stop-scripts for the application and said IP address(es)).

I hope this helps.

bakunin
 

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cfg_disconnect(3)					     Library Functions Manual						 cfg_disconnect(3)

NAME
cfg_disconnect - Remove the connection to a remote configuration management server LIBRARY
Configuration Management Library (libcfg.a) SYNOPSIS
#include <cfg.h> cfg_status_t cfg_disconnect( cfg_handle_t *handle); PARAMETERS
Structure identifying the means of communication between your application and the configuration management server. Your application receives this structure when it calls the cfg_connect() routine. DESCRIPTION
Once your application is finished using a remote configuration management server, it should call the cfg_disconnect() routine. This routine closes sockets and stops execution of the configuration management server. EXAMPLES
The following example illustrates the use of the cfg_disconnect() library routine: cfg_status_t retval; cfg_handle_t handle; retval = cfg_disconnect(&handle); if (retval != CFG_SUCCESS) print_error(retval); In this example, the cfg_disconnect() routine ends communication between the application and the configuration manager server. The server stops executing. RETURN VALUES
Upon successful completion, cfg_disconnect() returns CFG_SUCCESS. Other return values indicate that an error has occurred. For informa- tion about handling return values from routines in the configuration management library, see libcfg(3). RELATED INFORMATION
Commands: cfgmgr(8), sysconfig(8) Routines: cfg_connect(3), libcfg(3) delim off cfg_disconnect(3)
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