Mode
Category
Description
Default
MCU/RCU
6.
While the mode is set to ON, make sure not to
perform the Take Over function.
7.
The mode cannot be applied to a UR pair that is the
2nd mirror in URxUR multi-target configuration or
URxUR cascade configuration. If applied, TC pair
creation is rejected with SSB=CBEE output.
8.
Before setting SOM474 to ON, make sure that
SOM1091 is set to OFF. If SOM1091 is set to ON, set
it to OFF and then set SOM474 to ON.
484
TrueCopy for
Mainframe
ShadowImage
for Mainframe
The IBM-compatible PPRC FC path interface has been
supported with RAID500 50-06-11-00/00. As the
specification of QUERY display using this interface
(hereinafter called New Spec) is different from the current
specification (hereinafter called Previous Spec), this mode
enables to display the PPRC path QUERY with the New
Spec or Previous Spec.
Mode 484 = ON:
PPRC path QUERY is displayed with the New Spec.
Mode 484 = OFF (default):
PPRC path QUERY is displayed with the Previous Spec
(ESCON interface).
Notes:
1.
Set this mode to ON when you want to maintain
compatibility with the Previous Spec for PPRC path
QUERY display under the environment where IBM
host function (such as PPRC and GDPS) is used.
2.
When an old model or a RAID500 that doesn’t
support this mode is connected using TCz, set this
mode to OFF.
3.
If the display specification is different between MCU
and RCU, it may cause malfunction of host.
4.
When TPC-R is used, which is IBM software for
disaster recovery, set this mode to ON.
OFF
MCU/RCU
495
NAS
Function:
That the secondary volume where S-VOL Disable is set
means the NAS file system information is imported in the
secondary volume. If the user has to take a step to release
the S-VOL Disable attribute in order to perform the restore
operation, it is against the policy for the guard purpose and
the guard logic to have the user uninvolved. In this case,
in the NAS environment, Mode 495 can be used to enable
the restore operation.
Mode 495 = ON:
The restore operation (Reverse Copy, Quick Restore) is
allowed on the secondary volume where S-VOL Disable is
set.
Mode 495 = OFF (default):
OFF
System option modes
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Hitachi Virtual Storage Platform G1000, G1500, and Virtual Storage Platform F1500 Hardware Guide