Mode
Category
Description
Default
MCU/RCU
Mode 721 = ON:
When a parity group is uninstalled or
installed, the LED of the drive for uninstallation is not
illuminated, and the instruction message for removing the
drive does not appear. Also, the windows other than that of
parity group, such as DKA or DKU, are unavailable to select.
Mode 721 = OFF (default):
When a parity group is
uninstalled or installed, the operation is as before: the LED of
the drive is illuminated, and the drive must be unmounted
and remounted.
Notes:
1.
When the RAID level or emulation type is changed for
the existing parity group, this SOM should be applied
only if the drive mounted position remains the same at
the time of the parity group uninstallation or
installation.
2.
After the operation using this SOM is completed, this
SOM must be set back to OFF; otherwise, the LED of
the drive to be removed will not be illuminated at
subsequent parity group uninstalling operations.
725
Universal Volume
Manager
This SOM determines the action that will be taken when the
status of an external volume is Not Ready.
Mode 725 = ON:
When Not Ready is returned, the external
path is blocked and the path status can be automatically
recovered (Not Ready blockade). Note that the two
behaviors, automatic recovery and block, may be repeated.
When the status of a device is Not Ready blockade, Device
Health Check is executed after 30 seconds.
Mode 725 = OFF (default):
When Not Ready is returned
three times in three minutes, the path is blocked and the
path status cannot be automatically recovered (Response
error blockade).
Notes:
1.
Applying this SOM is prohibited when USP V/VM is used
as an external storage system and its external volume
is DP-VOL.
2.
Applying this SOM is recommended when the above
condition (1) is not met and SUN storage is used as an
external storage.
3.
Applying this SOM is recommended when the above
condition (1) is not met and EMC CX series or Fujitsu
Fibre CAT CX series is used as an external storage.
4.
Applying this SOM is recommended if the above
condition (1) is not met and a maintenance operation
such as firmware update causing controller reboot is
executed on the external storage side while a storage
system other than Hitachi product is used as an
external storage system.
5.
While USP V/VM is used as an external storage system
and its volume is DP-VOL, if some Pool-VOLs
constituting the DP-VOL are blocked, external path
blockade and recovery occurs repeatedly.
OFF
-
System option modes
363
System Administrator Guide for VSP Gx00 models and VSP Fx00 models
Summary of Contents for VSP F400
Page 10: ...10 System Administrator Guide for VSP Gx00 models and VSP Fx00 models ...
Page 16: ...16 Preface System Administrator Guide for VSP Gx00 models and VSP Fx00 models ...
Page 210: ...210 User administration System Administrator Guide for VSP Gx00 models and VSP Fx00 models ...
Page 244: ...244 Setting up security System Administrator Guide for VSP Gx00 models and VSP Fx00 models ...
Page 256: ...256 Alert notifications System Administrator Guide for VSP Gx00 models and VSP Fx00 models ...
Page 270: ...270 Managing license keys System Administrator Guide for VSP Gx00 models and VSP Fx00 models ...
Page 386: ...386 System option modes System Administrator Guide for VSP Gx00 models and VSP Fx00 models ...
Page 406: ...406 Glossary System Administrator Guide for VSP Gx00 models and VSP Fx00 models ...
Page 412: ...412 Index System Administrator Guide for VSP Gx00 models and VSP Fx00 models ...
Page 413: ...System Administrator Guide for VSP Gx00 models and VSP Fx00 models ...