Fujitsu Eternus DX600 S3 - Page 585

Chapter 6 Thin Provisioning Pool Management
6.10 Assign Eco-mode Schedule (Thin Provisioning Pool)
ETERNUS Web GUI User’s Guide (Settings)
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For details on the parameters for this function, refer to "A.6.7 Assign Eco-mode Schedule (Thin Provisioning
Pool)" (page 934).
For the factory default settings for this function, refer to "Appendix B Assign Eco-mode Schedule (Thin
Provisioning Pool)" (page 1008).
• The ETERNUS DX200F does not support this function.
• This function cannot be used for TPPs under the following conditions:
- No volumes are created
- Configured by SSDs or SSD SEDs
• When using Eco-mode, make sure to set the time/date correctly. If the time/date of the ETERNUS DX S3
series is wrong, processes used for stopping and starting the drive motor cannot be performed per the
Eco-mode schedule.
• When the "External" (drive motor management by the Storage Foundation Software ETERNUS SF) is
selected, it can be changed to the Eco-mode schedule. But when the Eco-mode schedule is selected, it
cannot be changed to "External".
• If any of the following conditions occur during the Eco-mode scheduled time, the drive will be started
even when the drive motor is inactive. The Eco-mode schedule is re-enabled when the conditions listed
have finished. (*1)
- The RAID group status in the TPP is not " Available"
- Functions that change the TPP or the volume configuration is being performed
- Rebuild or copyback is being performed in the RAID groups that configure the target TPP
- Formatting is being performed in the TPP
- Formatting is being performed in the volumes registered in the TPP
- RAID migration is being performed in the volumes registered in the TPP
- Advanced Copy is being performed in the volume registered in the TPP (copy session status is not
"Suspend" or the phase is not "Tracking")
- NAS system volumes exist in the TPP
- ODX Buffer volumes exist in the TPP
- During maintenance
- Disk diagnosis or RAID group diagnosis (diagnosing the RAID groups that configure the TPP) is being
performed, or G-List is being exported
- A module error related to the access paths of the controller modules and drive is detected
• If the server OS or software periodically accesses the ETERNUS DX, the drive motor may not stop even
when the Eco-mode is enabled.(*1)
*1: This not only affects the motor stoppage, but includes the cutting of the drives power as well.
• Before applying Eco-mode for TPPs, use the procedure in "1.6.1 Modify Eco-mode General Setting" (page
75) to enable the Eco-mode setting for the ETERNUS DX S3 series.
• Set the Eco-mode schedule using the procedure in "1.6.2 Create Eco-mode Schedule" (page 76)
.
• When the Eco-mode is set to TPP, the same Eco-mode schedule is assigned for all the RAID groups
configuring the TPP.
• When selecting multiple TPPs as the target of the Eco-mode, the same Eco-mode schedule can be
assigned for all the selected TPPs.