HP StorageWorks XP Remote Web Console Software - Manual (Page 143)

Continuous Access XP Journal user guide 143
Calling the HP Support Center
If you need to call the HP Support Center, provide as much information about the problem as possible,
including:
• Command View XP or XP Remote Web Console configuration information saved on disk using the FD
Dump Tool
• Circumstances surrounding the error or failure
• Exact content of any error messages displayed on the host systems
• Continuous Access XP Journal (or other) error codes displayed by Command View XP or XP Remote
Web Console
• Reference codes and severity levels of recent service information messages (SIMs)
Power management for disk arrays and network relay devices
This section explains power management for disk arrays and network relay devices during remote copy
operations. In particular, this section discusses the following:
• What happens when power is removed from disk arrays or network relay devices due to an
unexpected reason (see ” When power is removed due to an unexpected reason ” on page 143)
• What should be noted when you power off disk arrays or network relay devices intentionally (see
” When you turn power off intentionally ” on page 143)
The term “network relay devices” refers to hardware used for connecting primary and secondary disk
arrays, such as ESCON directors, channel extenders, and switches.
When power is removed due to an unexpected reason
This section explains what happens when power is removed from disk arrays or network relay devices due
to an unexpected reason.
When power is removed from primary disk arrays
If power is removed from the primary disk array during remote copy operations, the primary disk array
assumes a failure occurred, and splits all data volume pairs. If the primary disk array splits data volume
pairs, the secondary disk array also assumes a failure occurred, and splits all data volume pairs.
If power is removed from the primary or secondary disk array and its backup batteries are fully discharged
while data volume pairs are split, differential data (that is, update data) is not retained. In this unlikely
case, the primary or secondary disk array assumes all suspended data volumes are updated. If you restore
data volume pairs at the primary site, all primary data volumes are copied to the secondary data volumes.
When power is removed from secondary disk arrays
If power is removed from the secondary disk array during remote copy operations, the secondary disk
array assumes a failure occurred, and splits all data volume pairs. If the secondary disk array splits data
volume pairs, the primary disk array also assumes a failure occurred, and splits all data volume pairs.
If power is removed from the primary or secondary disk array and its backup batteries are fully discharged
while data volume pairs are split, differential data (that is, update data) is not retained. In this unlikely
case, the primary or secondary disk array assumes all suspended data volumes are updated. If you restore
data volume pairs at the primary site, all primary data volumes are copied to the secondary data volumes.
When power is removed from network relay devices
If power is removed from a network relay device during remote copy operations, the primary and
secondary disk arrays assume a failure occurred, and split all data volume pairs.
When you turn power off intentionally
This section explains what you should note when you power off disk arrays or network relay devices
intentionally.