Fujitsu Eternus DX200F, User Manual

Page: 934 / 1082

Appendix A Parameter List
A.6 Thin Provisioning Management
ETERNUS Web GUI User’s Guide (Settings)
Copyright 2015 FUJITSU LIMITED P2X0-1270-13ENZ0
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A.6.6 Modify Cache Parameters (Thin Provisioning Pool)
For details about this function, refer to "6.9 Modify Cache Parameters (Thin Provisioning Pool)" (page 582) .
For the factory default settings for this function, refer to "Appendix B Modify Cache Parameters (Thin
Provisioning Pool)" (page 1008) .
●
Parameters Setting
• Multi Writeback Count (MWC)
A.6.7 Assign Eco-mode Schedule (Thin Provisioning Pool)
For details about this function, refer to "6.10 Assign Eco-mode Schedule (Thin Provisioning Pool)" (page 584) .
For the factory default settings for this function, refer to "Appendix B Assign Eco-mode Schedule (Thin
Provisioning Pool)" (page 1008) .
●
Eco-mode Schedule Setting
• Eco-mode Schedule
Description Specify the value of the Multi Writeback Count.
When specifying larger MWC, sequential write access performance is improved. Note that
this is not effective when a number of random write accesses occur.
Depending on the ratio of read access and write access, read access performance may be
reduced.
Input condition/
Display contents 1 - 16
The setting values available for Multi Writeback Count vary depending on the RAID level and drive configuration.
Refer to
"F.2 Input Conditions for MWC" (page 1066) for details.
Description Select the Eco-mode schedule that is to be assigned to the TPP.
Input condition/
Display contents
•
No Change
Do not change the current assignment.
•
Disable
Disable the Eco-mode.
•
Eco-mode schedule name
Assign the selected Eco-mode schedule.