Fujitsu ETERNUS DX100 S4 Design Manual page 77

2. Basic Functions
Environmental Burden Reduction
To set Eco-mode schedule, use ETERNUS Web GUI, ETERNUS CLI, ETERNUS SF Storage Cruis-
•
er, or ETERNUS SF AdvancedCopy Manager. Note that schedules that are created by ETERNUS
Web GUI or ETERNUS CLI and schedules that are created by ETERNUS SF Storage Cruiser or
ETERNUS SF AdvancedCopy Manager cannot be shared. Make sure to use only one type of
software to manage a RAID group.
• Use ETERNUS Web GUI or ETERNUS CLI to set Eco-mode for TPPs. ETERNUS SF Storage
Cruiser or ETERNUS SF AdvancedCopy Manager cannot be used to set the Eco-mode for TPPs
and FTRPs.
• Specify the same Eco-mode schedule for the RAID groups that configure a WSV. If different
Eco-mode schedules are specified, activation of stopped disks when host access is performed
occurs and the response time may increase.
• The operation time of disks varies depending on the Eco-mode schedule and the disk access.
Access to a stopped disk outside of the scheduled operation time period causes the motor of
-
the stopped disk to be spun up, allowing normal access in about one to five minutes. When a
set time elapses since the last access to a disk, the motor of the disk is stopped.
- If a disk is activated from the stopped state more than a set amount of times in a day, the
Eco-mode schedule is not applied and disk motors are not stopped by the Eco-mode.
(Example 1) Setting the Eco-mode schedule via ETERNUS Web GUI
Operation schedule is set as 9:00 to 21:00 and there are no accesses outside of the scheduled
period
1:00
Stop
(Example 2) Setting the Eco-mode schedule via ETERNUS Web GUI
Operation schedule is set as 9:00 to 21:00 and there are accesses outside of the scheduled
period
1:00
Fujitsu Storage ETERNUS DX100 S4/DX200 S4, ETERNUS DX100 S3/DX200 S3 Hybrid Storage Systems Design Guide (Basic)
9:00
Scheduled operation
Operation
The motor starts rotating
10 min before the scheduled operation
9:00
Scheduled operation
Operation
The motor starts rotating
10 min before the scheduled operation
77
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21:00
Stop
The disk stops 10 min
after the scheduled operation
Access
21:00 Stop accessing
Stop Operation
Operation
Accessible in 1 to 5 min
The disk stops 10 min after the scheduled operation
0:00
Stop
P3AM-7642-32ENZ0