Mode
Category
Description
Default
MCU/RCU
1115
Deduplication
and
Compression
When this SOM is set to ON, data is initialized
without using metadata at LDEV format for a virtual
volume with Capacity Saving enabled.
Mode 1115 = ON:
When LDEV format is performed
for a virtual volume whose capacity saving setting is
Compression, the data is initialized without using the
metadata.
Mode 1115 = OFF (default):
When LDEV format is
performed for a virtual volume whose capacity
saving setting is Compression, normal formatting is
performed, but if one of the following conditions is
met, the data is initialized without using metadata.
■
There is a pinned slot.
■
The capacity saving status is “Failed”.
■
The virtual volume is blocked (Normal restore
cannot be performed).
Notes:
1.
This SOM is applied to recover a blocked pool
volume in a pool to which a virtual volume
whose capacity saving setting is Compression
belongs.
For the information of setting timing, refer to
the procedure for blocked pool volume recovery
in the Maintenance Manual.
2.
The processing time increases with increase in
pool capacity.
Estimate of processing time:
Processing time (minutes) = ceiling(pool capacity
(TB)/40) + 5
ceiling: The value enclosed in ceiling( ) must be
rounded up to the nearest whole number.
The processing
finishes
early if there is less
capacity of allocated pages.
3.
Do not change this SOM setting during LDEV
format for a virtual volume whose capacity
saving setting is Compression. If the setting is
changed, the processing cannot be performed
correctly and may end abnormally depending
on the timing.
4.
This SOM is
effective
only for LDEV format for a
virtual volume whose capacity saving setting is
OFF
-
System option modes
Appendix B: System option modes
System Administrator Guide for VSP Gx00 models and VSP Fx00 models
345
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: ......