HP XP P9500 Owner's Manual page 23

Table 1 1 System option modes
Mode Category
20 Public
(Optional)
22 Common
36 HRC
64 Continuous Access
Synchronous Z
Description
R-VOL read only function.
Regarding the correction copy or the drive copy, in case
ECCs/LRC PINs are set on the track of copy source HDD, mode
22 can be used to interrupt the copy processing (default) or to
create ECCs/LRC PINs on the track of copy target HDD to
continue the processing.
Mode 22 = ON:
If ECCs/LRC PINs (up to 16) have been set on the track of copy
source HDD, ECCs/LRC PINs (up to 16) will be created on the
track of copy target HDD so that the copy processing will
continue.
If 17 or more ECCs/LRC PINs are created, the corresponding
copy processing will be interrupted.
Mode 22 = OFF (default)
If ECCs/LRC PINs have been set on the track of copy source HDD,
the copy processing will be interrupted. (first recover ECCs/LRC
PINs by using the PIN recovery flow, and then perform the
correction copy or the drive copy again)
One of the controlling option for correction/drive copy.
Sets default function (CRIT=Y) option for SVP panel (HRC).
Mode 64 = ON:
When receiving the Freeze command, in the subsystem, pair
volumes that fulfill the conditions below are suspended and
the status change pending (SCP) that holds write I/Os from
the host is set. The path between MCU and RCU is not deleted.
Query is displayed only but unusable.
When receiving the RUN command, the SCP status of the pairs
that fulfill the conditions below is released.
When a Failure Suspend occurs when Freeze Option Enable
is set, except the pair in which the Failure Suspend occurs,
other pairs that fulfill conditions below go into SCP state:
- Continuous Access Synchronous Sync M-VOL
- Mainframe Volume
- Pair status: Duplex/Pending
Mode 64 = OFF (default):
When receiving the Freeze command, pairs that fulfill the
conditions below are suspended and the SCP is set. In the
case of CU emulation type 2105/2017, the path between
MCU and RCU is deleted, while the path is not deleted but
unusable with Query displayed only in the case of CU
emulation type 3990.
When receiving the RUN command, the SCP status of the pairs
that fulfill the conditions below is released.
When a Failure Suspend occurs while the Freeze Option
Enable is set, except the pair in which the Failure Suspend
occurs, other pairs that fulfill the conditions below go into SCP
state.
Conditions:
Continuous Access Synchronous Sync M-VOL
Mainframe Volume
System option modes, host modes, and host mode options
Default MCU/RCU
OFF MCU
OFF
OFF MCU
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