HPlogo High Availability FailOver/iX Manual > Chapter 4 Configuration

ADDCONF (ad)

MPE documents

Complete PDF
Table of Contents

E0803 Edition 2
E1100 Edition 1 ♥

Once the configuration file is built for a specific SYSGEN base configuration, the ldevs must be configured for HAFO with their primary and alternate paths. Fully qualified paths are required. Research and obtain this information prior to configuration. The syntax is: 

  AD <LDEV> <LDEV primary device path> <alternate device
                                        adapter card path>
A data path consists of the fast-wide host adapter and fast-wide SCSI bus connected to the high-availability array. For example: 

  ha> ad 90 8.0.1 16
NOTE: The second parameter is the fully qualified ldev path while the third parameter is only the path of the device adapter card itself.

The hardware must be in place, configured through SYSGEN, and initialized at system boot time before issuing this command. The ldev specified must be mounted in the MEMBER or MASTER state.

Once added using addconf, the primary and alternate paths are checked for availability against internal system I/O tables. If the ldev cannot be accessed through both paths specified, then an error will be issued and the ldev will NOT be added to the configuration. Although this makes it much more difficult to make configuration mistakes, it also prohibits the creation of HAFO configurations for other systems that are different than the present system.

The example paths are simple. Actual paths in your environment are probably more complicated. (See the Configuration Checklist section of this chapter.) Any omission or error in the path could result in an error during the doha command.

NOTE: Because HAFO works in pairs, the very first successful ADDCONF command that is entered (and applied, see the doha command) links all the ldevs on those two paths. All ldevs on the primary path specified must be configured to failover to the alternate path specified. Further all the ldevs on the alternate path specified, if any exist, must be configured to failover to the primary path specified in the first ADDCONF command specifying these paths. See Figure 4-1 "Configuring HAFO in Pairs" for more information.



Accessing the HAFO Configuration Commands

LISTCONF (li)