Seagate ST4000NM0053 Constellation ES (.1) SATA Product Manual - Page 24
PowerChoice Manufacture Default Power Condition Timer Values
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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. Power Condition Name Idle_a Idle_b Idle_c Standby_z Manufacturer Default Timer Values 2 min 4 min 10 min 15 min 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 EPC Subcommand 00H 01H 02H 03H Description Restore Power Condition Settings Go to Power Condition Set Power Condition Timer Set Power Condition State PowerChoice Supported Extended Power Condition Indentifiers Power Condition Identifiers 00H 01 - 80H 81H 82H 83H 84 - FEH FFH Power Condition Name Standby_z Reserved Idle_a Idle_b Idle_c Reserved All EPC Power Conditions 18 Constellation ES Serial ATA Product Manual, Rev. D