HP StorageWorks XP Remote Web Console Software User Manual

Page 221

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Table 69 XP Disk Array Response Characteristics to Failure Conditions (continued)

FREEZE Function

Expected Messages

TC for Mainfr. Pairs

Suspended?

Failure Condition

Activated if the
FREEZE option is
enabled for the
affected LCU pairs.

(1) No IEA480(SIM of
cache blocked) is
displayed.

(2) One (or more)
IEA494 messages
showing EXTENDED
LONG BUSY are
displayed.

(3) One (or more)
IEA491 and IEA494
messages showing
PAIR SUSPENDED are
displayed.

(4) If CGROUP
FREEZE and RUN are
issued, IEA494
messages showing
PAIR SUSPENDED are
displayed when the
MCU accepts
CGROUP-RUN. These
messages are from the
TrueCopy for
Mainframe pairs for
which FREEZE option
is enabled, and from
main volumes which
did not already report
IEA491/IEA494 at
(3).

Yes

Both sides of RCU cache blocked due to failure

Activated if the
FREEZE option is
enabled for the
affected LCU pairs.

(1) IEA480 (SIM for
TrueCopy for
Mainframe path
blocked) message is
reported when the
next I/O to any device
in this MCU is issued.

(2) One (or more)
IEA494 messages
showing EXTENDED
LONG BUSY are
displayed.

(3) One (or more)
IEA491 and IEA494
messages showing
PAIR SUSPENDED are
displayed.

Yes

Failure of all links between the MCU and RCU

Overview of PPRC Commands 221

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