Mode Category Description Default MCU/RCU
Mode 857 = OFF (default):
The cache allocation capacity is not limited to within 128
GB.
Note:
This mode is used with VSP microcode version -04
(70-04-0x-00/00) and earlier. It is also applied when
downgrading the microprogram from V02
(70-02-02-00/00) or higher to a version earlier than V02
(70-02-02-00/00) while over 128 GB is allocated.
867 Dynamic
Provisioning
All-page reclamation (discarding all mapping information
between HDP pool and HDP volumes) is executed in DP-
VOL LDEV format. This new method is enabled or disabled
by setting the mode to ON or OFF.
Mode 867 = ON:
LDEV format of the DP-VOL is performed with page
reclamation.
Mode 867 = OFF (default):
LDEV format of the HDP-VOL is performed with 0 data
writing.
Notes:
1. This mode is applied at recovery after a pool failure.
2. The mode is applied from factory shipment.
3. Do not change the setting of the mode during DP-
VOL format.
4. If the setting of the mode is changed during DP-VOL
format, the change is not reflected to the format of
the DP-VOL being executed but the format continues
in the same method.
OFF
872 Universal Volume
Manager
When the mode is applied, the order of data transfer slots
is guaranteed at the destaging from P9500 to an external
storage.
Mode 872 = ON (default for 80-03-31 and later):
The order of data transfer slots from VSP to an external
storage is guaranteed.
Mode 872 = OFF (default for earlier than 80-03-31):
The order of data transfer slots from VSP to an external
storage is not guaranteed.
In V03 and later versions, the mode is set to ON before
shipment.
If the micro-program is exchanged to a supported version
(V03 or later), the setting is OFF as default and needs to
be set to ON manually.
Note:
ON
(default
for
80-03-31
and later)
162 System option modes
Hitachi Virtual Storage Platform G1000, G1500, and Virtual Storage Platform F1500 Hardware Guide
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