HP StorageWorks XP Remote Web Console Software User Manual

Page 157

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Figure 55 Suspend Pair Dialog Box (Asynchronous)

The suspend options are:

Volume: Device ID of the selected M-VOL (R-VOL if connected to the RCU).

If the pound or gate symbol (#) is added to the end of LDEV number like 00:00:3F#, the LDEV
that the LDEV number indicates is an external volume. For details on an external volume, see
the HP StorageWorks XP24000/XP20000 External Storage Software User's Guide.

SSB [F/M=FB]: When this option is enabled (and PPRC Support = Yes), the MCU will notify
all attached hosts (IEA494I message) that the pair was suspended. This option should always
be enabled.

If PPRC support = No, the x'FB' sense information will not be reported to the host, even if the
SSB (F/M = FB) suspend option is enabled.

Suspend Kind (default = R-VOL):

R-VOL: the M-VOL will accept all subsequent write I/O operations, and the MCU will
keep track of updates while the pair is suspended. Subsequent write I/O operations to

the M-VOL will be accepted or rejected depending on the fence level of the pair. This
setting is available from the MCU and RCU, and should be used if you need to keep the
M-VOL online. All TrueCopy for Mainframe Async pairs have this setting. This setting is
functionally equivalent to CSUSPEND with the optional PRIMARY parameter (without
QUIESCE).

M-VOL Failure (available only for TrueCopy for Mainframe Sync and only when connected
to the MCU): the MCU will reject all write I/O operations to the M-VOL while the pair is
suspended, regardless of the M-VOL fence level setting. This setting should be used if you

Splitting TrueCopy for Mainframe Pairs

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