Hitachi HUS VM - Page 98

System option modes
To provide greater flexibility and enable the HUS VM to be tailored to unique
customer operating requirements, additional operational parameters, or
system option modes, are available. At installation, the modes are set to their
default values, as shown in the following table. Be sure to discuss these
settings with your Hitachi Data Systems team if you think changes should be
made. The system option modes can only be changed by a Hitachi Data
Systems representative.
The following tables provide information about system option modes and and
SVP operations:
•
Table B-1 System option modes on page B-2 lists the public system
option mode information for HUS VM. These can be used as needed.
• Table B-2 Mode 269: Storage Navigator Operations on page B-25
specifies the details for mode 269 for Storage Navigator operations.
• Table B-3 Mode 269: SVP Operations on page B-26 specifies the details
of mode 269 for SVP operations.
The following tables were up to date at the time this manual was published.
However, the system option mode information may change in firmware
releases that may happen before the next release of this manual. Contact
Hitachi Data Systems support for the latest information on the HUS VM
system option modes.
The system option mode information includes:
• Mode: Specifies the system option mode number.
• Category: Indicates the functions to which the mode applies.
• Description: Describes the action or function that the mode provides.
• Default: Specifies the default setting (ON or OFF) for the mode.
• MCU/RCU: For remote functions, indicates whether the mode applies to
the main control unit (MCU) and/or the remote control unit (RCU).
Table B-1 System option modes
Mode Category Description Default
MCU/R
CU
20 Public
(Optional)
R-VOL read only function. OFF MCU
22 Public 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.
OFF -
B-2
System option modes
Hitachi Unified Storage VM Block Module Hardware User Guide