HP StorageWorks XP Remote Web Console Software - Manual (Page 215)

Table 69 XP Disk Array Response Characteristics to Failure Conditions (continued)
FREEZE Function Expected Messages TC for Mainfr. Pairs
Suspended?
Failure Condition
when the next I/O to
any device in this
MCU is issued.
(2) No IEA491 or
IEA494 messages are
displayed.
Not activated (1) IEA480 (SIM for
cache blocked) is No* One side of MCU
cache blocked due to
failure Failure of NVS on the
MCU;
Failure of MCU read
cache
reported when the
next I/O to any device
in this MCU is issued.
(2) No IEA491 or
IEA494 messages are
displayed.
Not activated No IEA480, IEA491,
or IEA494 messages
are displayed. No* One side of MCU
cache blocked due to
maintenance
Not activated No IEA480, IEA491,
or IEA494 messages
are displayed. No* One side of MCU
cache blocked by SET
CACHE OFF
Not activated No IEA480, IEA491,
or IEA494 messages No Both sides of MCU cache blocked due to
failure
are displayed. The
MCU returns CC=3
for all I/Os.
Not activated (1) The RCU reports
IEA480 message (SIM No Failure of one physical
device in a parity
group Failure of a disk on
the RCU
for physical device
blocked or port of
physical device
blocked) to either the
MCU or the host
processor (whichever
issues the next I/O
first) when the next
I/O is issued to any
volume in the parity
group. If MCU
receives the SIM, it
passes the SIM to the
attached host
processor, and the
IEA480 message is
reported when the
next I/O to this MCU
is issued to any main
(primary) volume
paired with the volume
in the parity group.
(2) No IEA491 or
IEA494 messages are
displayed.
Activated if the
FREEZE option is (1) The RCU reports
IEA480 message (SIM Yes Failure of two physical
devices in a parity
group
enabled for the
affected LCU pairs. for LDEV blocked) to
either the MCU or the
Overview of PPRC Commands 215