HP StorageWorks XP Remote Web Console Software - Manual (Page 180)

180 Hitachi TrueCopy z/OS for HP XP12000/XP10000 and SVS 200 storage systems
NOTE: If PPRC Support = No is selected on the RCU Option window, the host generates the system
console message that includes the SIM instead of the IEA494I or IEA491E message.
IEA494I message
Whenever a TC390 pair status changes, with the exception of the TC390A transition states suspending
and deleting, the MCU reports state-change-interrupt (SCI) to all hosts. In response to the SCI, the IEA494I
system console message is generated (if supported by the host). The XP12000/XP10000 reports SCI for
both online and offline devices, but the host system does not generate console messages for offline devices.
Therefore, the IEA494I message is never generated with a TC390 R-VOL device address. The following
figure shows an example of an IEA494I message.
• The XP12000/XP10000 MCU reports SCI for all TC390A pairs whose status has changed, regardless
of the Group/Volume option of the suspend or delete pair operation (if the status change was
user-requested).
• The XP12000/XP10000 MCU reports SCI for all TC390 M-VOLs (synchronous only) that are in the SCP
state due to the CGROUP/FREEZE command. As shown in the following figure, this IEA494I message
indicates the extended long busy state.
• The XP12000/XP10000 MCU reports SCI for all TC390 M-VOLs (synchronous only) that are suspended
due to the CGROUP/RUN command. This IEA494I message indicates the extended long busy state.
• When the FREEZE option is enabled, the XP12000/XP10000 MCU reports SCI for a TC390 pair that is
suspended due to a failure. When the host supports GDPS, this IEA494I message with extended long
busy triggers the CGROUP (FREEZE/RUN) command.
Output Example: IEA494I Message with Extended Long Busy State
IEA491E message
When a TC390 pair is suspended due to a failure, the XP12000/XP10000 MCU reports SCI as well as
unit check status and sense bytes with F/M = FB. In response to the F/M=FB sense bytes, the IEA491E
system console message is generated (if supported by the host). The following figure shows an example of
an IEA491E message.
NOTE: If the host supports GDPS and the FREEZE option is enabled, the IEA494I system console message
with extended long busy, which was generated in response to the SCI, triggers the CGROUP
(FREEZE/RUN) command.
Output Example: IEA491E Message
XP12000/XP10000 response characteristics to failure conditions
The XP12000/XP10000 supports the CGROUP command in the GDPS environment by performing
PPRC-compatible actions and returning PPRC-compatible messages to failure conditions. The following
figure shows the failure conditions and the following table describes the response characteristics of the
XP12000/XP10000 to these failure conditions.
IEA494I 0FC3,RD0FC3,PPRC PAIR SUSPENDING,SSID=0FC0,CCA=03,EXTENDED LONG BUSY STATE
IEA491E DSLFC0,PPRC SUSPENDED, SECONDARY NOT READY, INTERVENTION_REQUIRED,
(PRI)SER=0113-90797,CCA=00 (SEC)SER=0113-90217,CCA=