IXLYCONA Contents when Connecting during the Duplex Established Phase

The structure attribute information returned in IXLYCONA when connecting to a structure that is duplexed represents a “composite” attribute state for the duplexed structure.

VOLATILITY
If either structure is nonvolatile, the composite state is nonvolatile.
FAILURE-ISOLATION
If the connector is failure-isolated from either structure instance, the composite state is failure-isolated.
PHYSICAL STRUCTURE VERSION NUMBERS
There is no composite state of this attribute. The physical structure version numbers for both structure instances (primary and secondary) will be returned.

See Understanding the Structure Version Numbers for additional information about structure version numbers.
LOGICAL STRUCTURE VERSION NUMBER
There is no composite state of this attribute. The logical version number will be the same for the primary and secondary structure in a duplex pair.
CFNAME
There is no composite state of this attribute. The CFNAME is for the coupling facility where the primary instance of the structure is allocated.
CFLEVEL
When establishing duplexing, the secondary structure must be allocated in at least as high a CFLEVEL as that which has been previously reported back to any connector as the primary structure's CFLEVEL. However, the secondary structure's actual CFLEVEL may validly be lower than the actual CFLEVEL of the primary structure.

Therefore, when a new connector connects to the duplexed structure, the composite CFLEVEL reported is the lower of the connector's requested CFLEVEL or the lower of the actual CFLEVELs for the primary or secondary structure.
EXCLUSION LIST
The exclusion list indicator is not applicable to a connect during the Duplex Established phase.
DUPLEXING STATE INDICATORS
There are two attributes that pertain to duplexed structures. The indicators are:
- An indicator of whether the structure is simplex or duplexed.
- If duplexed, an indication of whether the primary structure instance is duplex failure-isolated form the secondary.
When connecting to a structure during the Duplex Established phase, the structure will be presented as duplexed, with the structures either being duplex failure-isolated from one another or not.

When connecting to a structure in the Duplex Established phase of system-managed duplexing rebuild, the fields in IXLYCONA that pertain to connecting during user-managed duplexing rebuild do not apply. In particular, the CONAREBUILD and CONAREBUILDDUPLEX indications are off.