Seagate ST91000641NS manual Acoustics, Vibration, Operating vibration, Nonoperating vibration

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3.9.5Vibration

All vibration specifications assume that the drive is mounted securely with the input vibration applied at the drive mounting screws. Vibration may be applied in the X, Y or Z axis.

3.9.5.1Operating vibration

The maximum vibration levels that the drive may experience while meeting the performance standards speci- fied in this document are specified below.

5–500 Hz

0.50 Gs

3.9.5.2Nonoperating vibration

The maximum nonoperating vibration levels that the drive may experience without incurring physical damage or degradation in performance when subsequently put into operation are specified below.

5–500 Hz

3.0 Gs

3.10Acoustics

Drive acoustics are measured as overall A-weighted acoustic sound power levels (no pure tones). All mea- surements are consistent with ISO document 7779. Sound power measurements are taken under essentially free-field conditions over a reflecting plane. For all tests, the drive is oriented with the cover facing upward.

Note. For seek mode tests, the drive is placed in seek mode only. The number of seeks per second is defined by the following equation:

(Number of seeks per second = 0.4 / (average latency + average access time)

Table 3: Fluid Dynamic Bearing (FDB) motor acoustics

Active	Idle*

2.8 bels (typ)	2.2 bels (typ)

*During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and power to operational levels.

Constellation.2 Serial ATA Product Manual, Rev. B

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Contents Standard Models Self-Encrypting Drive Models ST91000642NS ST9500622NS ST9250612NSSED Fips 140-2 Models Revision Date Sheets affected or comments Revision historyContents Serial ATA Sata interface List of Figures Page Seagate Online Support and Services Seagate Technology support servicesIntroduction About the Serial ATA interface Specification summary tables Drive specificationsDrive specifications summary for 1TB, 500 and 250 GB models Constellation.2 Serial ATA Product Manual, Rev. B LBA mode Default logical geometryFormatted capacity Recording and interface technologySeek time Physical characteristicsStart/stop times Typical seek times ms Read WritePower consumption Power specificationsSpinup power Standby modePower 1000GB drive Standard & SED model DC power requirementssST91000640NS Parameter 0GB Voltage +12 Regulation +10/-7.5% WattsST9500620NS Parameter 0GB Voltage +12 500GB drive Standard & SED model DC power requirementsST9250610NS Parameter 0GB Voltage +12 250GB drive Standard & SED model DC power requirementsTypical current profiles Voltage tolerance Conducted noiseActive mode Power-management modesIdle mode Sleep modePower Condition Name Power Condition ID Description PowerChoice is invoked using one of two methodsEnvironmental limits Temperature a. OperatingRelative humidity Shock Effective altitude sea levelOperating shock Nonoperating shockVibration AcousticsOperating vibration Nonoperating vibrationReliability Electromagnetic immunityRadio frequency environments Test Description Performance level Reference standardAgency certification Environmental protection Product warrantyReference documents Storage ShippingProduct repair and return information China Restriction of Hazardous Substances RoHS Directive Corrosive environmentHandling and static-discharge precautions Configuring and mounting the driveSerial ATA cables and connectors Configuring the driveDrive mounting Mounting dimensions-top, side and end viewAir flow CoolingPurpose About FipsLevel 2 security Admin SP Controlled accessAbout self-encrypting drives Data encryptionRandom number generator RNG Default passwordDrive locking Data bandsPower requirements Authenticated firmware downloadSupported commands Cryptographic eraseHot-Plug compatibility Serial ATA Sata interfaceSerial ATA connector pin definitions Serial ATA device plug connector pin definitionsSignal Pin Function DefinitionSupported ATA commands Supported ATA commandsCommand name Command code in hex F4H Word Description Value Identify Device commandXx07H Bit Word Description if bit is set to Bit WordWord Set Features command values Set Features commandA.R.T. commands 3 S.M.A.R.T. commandsCode in features register A.R.T. command Index ITE Page Constellation.2 Serial ATA Product Manual, Rev. B Page Disc Drive, Scotts Valley, California 95066-4544, USA