Hitachi TrueCopy for z/OS user guide (December 2005)

TrueCopy for z/OS user guide 165
NOTE: The PPRC Support=Yes option must be selected on the RCU option window (see ”Registering an
RCU (Add RCU)” on page 81). If not, the host processor generates the system console message that
includes the SIM instead of the IEA494I or IEA491E message.
Figure 71 Failure conditions (described in Table 40)
Table 40 XP128/XP1024/XP10000/XP12000 response characteristics to failure conditions
Failure Condition TC390 Pairs
Suspended?
Expected Messages FREEZE
Function
¿ Failure of all channel
interfaces on the MCU
No No IEA480, IEA491, or IEA494 messages are
displayed.
Not
activated
¡ Failure of a disk on the MCU
a. Failure of one
physical device in
a parity group
No 1. IEA480 message (SIM for physical device
blocked or port of physical device blocked)
is displayed when the next I/O is issued to
any logical volume in the parity group.
2. No IEA491 or IEA494 messages are
displayed.
Not
activated
b. Failure of two
physical devices in
a parity group
No 1. IEA480 message (SIM for LDEV blocked) is
displayed when the next I/O is issued to
any logical volume in the parity group.
2. No IEA491 or IEA494 messages are
displayed.
Not
activated