Mode
Category
Description
Default
MCU/RCU
930
Dynamic
Provisioning
Dynamic
Tiering
ShadowImage
When this SOM is set to ON, all of the zero data page
reclamation operations in processing are stopped.
(Also the zero data page reclamation cannot be
started.)
* Zero data page reclamation by WriteSame and
UNMAP functions, and IO synchronous page
reclamation are not disabled.
Mode 930 = ON:
All of the zero data page
reclamation operations in processing are stopped at
once. (Also the zero data reclamation cannot be
newly started.)
Mode 930 = OFF (default):
The zero data page
reclamation is performed.
For details about interactions with SOM 755, contact
customer support (see SOM930 sheet).
Notes:
1.
This SOM is applied when stopping or disabling
zero data page reclamation by user request is
required.
2.
When this SOM is set to ON, the zero data page
reclamation does not work at all.
* Zero data page reclamation by Write Same
and UNMAP, and IO synchronous page
reclamation can work.
3.
When downgrading micro-program to a version
that does not support this SOM while this SOM
is set to ON, set this SOM to OFF after the
downgrade.
* Because the zero data page reclamation does
not work at all while this SOM is set to ON.
4.
This SOM is related to SOM 755.
OFF
-
System option modes
Appendix B: System option modes
System Administrator Guide for VSP Gx00 models and VSP Fx00 models
330
Summary of Contents for Virtual Storage Platform F400
Page 18: ......
Page 362: ...Glossary System Administrator Guide for VSP Gx00 models and VSP Fx00 models 362 ...
Page 367: ......