Seagate Exos 7E8 SATA Product Manual, Rev. B (Draft 2)
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Power Condition Log reports the following for each power condition
• Nominal recovery time from the power condition to active
• If the power condition is Supported, Changeable, and Savable
• Default enabled state, and timer value
• Saved enabled state, and timer value
• Current enabled state, and timer value
S.M.A.R.T. Read Data Reports
• Attribute 192 - Emergency Retract Count
• Attribute 193 - Load/Unload Cycle Count
PowerChoice Manufacture Default Power Condition Timer Values
Default power condition timer values have been established to assure product reliability and data integrity. A minimum timer value
threshold of two minutes ensures the appropriate amount of background drive maintenance activities occur. Attempting to set a
timer values less than the specified minimum timer value threshold will result in an aborted EPC "Set Power Condition Timer"
subcommand.
Setting power condition timer values less than the manufacturer specified defaults or issuing the EPC "Go to Power Condition"
subcommand at a rate exceeding the default timers may limit this products reliability and data integrity.
PowerChoice Supported Extended Power Condition Feature Subcommands
PowerChoice Supported Extended Power Condition Identifiers
Power Condition Name
Manufacturer Default Timer Values
Idle_a
100 msec
Idle_b
2 min
Idle_c
4 min
Standby_z
15 min
EPC Subcommand
Description
00
H
Restore Power Condition Settings
01
H
Go to Power Condition
02
H
Set Power Condition Timer
03
H
Set Power Condition State
04
H
Enable EPC Feature Set
05
H
Disable EPC Feature Set
Power Condition Identifiers
Power Condition Name
00
H
Standby_z
01 - 80
H
Reserved
81
H
Idle_a
82
H
Idle_b
83
H
Idle_c
84 - FE
H
Reserved
FF
H
All EPC Power Conditions
