Seagate ST373355SS, ST3146755SS, ST3300555SS manual Index, Numerics

Page 83

Index

Numerics

12 volt pins 61

5 volt pins 61

A

abort task set function 45 AC coupling 61

AC power requirements 23 ACA active status 56

ACA active, faulted initiator status 56 acoustics 36

active LED Out signal 61 actuator

assembly design 7 adaptive caching 56 AFR 9

air cleanliness 35 air flow 42

illustrated 42 air inlet 42 altitude 33 ambient 32

ambient temperature 42 ANSI documents

SCSI 5

Serial Attached SCSI 5 asynchronous event notification 56 audible noise 3

auto write and read reallocation programmable 8

automatic contingent allegiance 56 average idle current 23, 24 average rotational latency 11

B

Background Media Scan 39 backpanel 60

BMS 39 buffer

data 8 space 13

busy status 56

C

cache operation 13 cache segments 13 caching write data 14

Canadian Department of Communications 3 capacity

unformatted 11

 

 

check condition status

56

chemical pollutants

35

 

class B limit

3

 

 

clear ACA function

45

 

clear task set function

45

commands supported

47

condensation

33

 

 

condition met/good status 56 connector

illustrated 59 requirements 59

continuous vibration 35 cooling 42

corrosive environment 35

CRC

error 16 Current profiles 25 customer service 21

D

DAR 40

data block size modifing the 9

data heads read/write 11

data rate internal 11

data transfer rate 12 DC power 60

requirements 23

defect and error management 37 defects 37

Deferred Auto-Reallocation 40 deferred error handling 56 description 7

dimensions 36

disc rotation speed 11 drive 35

drive characteristics 11 drive failure 16

drive malfunction 16 drive mounting 36, 43 drive select 60

dual port support 46

E

electrical

description of connector 60 signal characteristics 61 specifications 23

electromagnetic compatibility 3 electromagnetic susceptibility 36 EMI requirements 3

Cheetah T10 SAS Product Manual, Rev. A

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Contents Cheetah T10 SAS Page Contents Interface requirements Defect and error managementInstallation Seagate Technology support servicesList of Figures Cheetah T10 SAS Product Manual, Rev. a Cheetah T10 SAS disc drive ScopeCheetah T10 SAS Product Manual, Rev. a Electromagnetic susceptibility Standards, compliance and reference documentsStandards Electromagnetic compatibilityCompliance Reference documents Cheetah T10 SAS Product Manual, Rev. a General description Performance Standard featuresMedia description Programmable drive capacity Factory-installed accessoriesReliability Formatted capacitiesUser-installed accessories Options factory installedSeek time Performance characteristicsInternal drive characteristics Access timeStart/stop time Format command execution time minutesGeneral performance characteristics Cache operation Prefetch/multi-segmented cache controlPrefetch operation Caching write dataUnrecoverable Errors Reliability specificationsError rates Recoverable ErrorsPreventive maintenance Reliability and serviceSeek errors Interface errorsPerformance impact Hot plugging the drive4 S.M.A.R.T Controlling S.M.A.R.TThermal monitor Reporting controlDetermining rate Predictive failuresParameter Code Description Temperature Log Page 0DhPrimary Temperature Reference TemperatureShort test Function Code 001b State of the drive prior to testingInvoking DST Short and extended testsProduct repair and return information Product warrantyAbort ShippingCheetah T10 SAS Product Manual, Rev. a ST3300555SS DC power requirements Physical/electrical specificationsAC power requirements DC power requirementsST373355SS Gbit mode Amps ST3146755SS DC power requirementsST373355SS DC power requirements ST3146755SS Gbit mode AmpsCurrent profiles General DC power requirement notesPower sequencing Conducted noise immunityTypical ST3300555SS drive current profiles Typical ST3146755SS drive current profiles Typical ST373355SS drive current profiles ST3300555SS in 1.5 Gbit operation Power dissipationST3300555SS in 3 Gbit operation ST3146755SS in 1.5 Gbit operation ST3146755SS in 3 Gbit operationST373355SS in 1.5 Gbit operation ST373355SS in 3 Gbit operationEnvironmental limits Temperature a. OperatingShock Relative humidityEffective altitude sea level a. Operating Shock and vibrationRecommended mounting Package size Packaged/product weight Drop heightCorrosive environment Air cleanlinessVibration a. Operating-normal Acoustics Mechanical specificationsDrive error recovery procedures Defect and error managementDrive internal defects/errors Write retry count LBA cumulative, msec Media Pre-Scan SAS system errorsBackground Media Scan Idle Read After Write Deferred Auto-ReallocationDrive orientation InstallationAir flow CoolingGrounding Drive mountingCheetah T10 SAS Product Manual, Rev. a Interface requirements SAS featuresDual port support Command name Command code Supported Scsi commands supportedCommands supported by Cheetah T10 SAS family drives Commands supported by Cheetah T10 SAS family drives Commands supported by Cheetah T10 SAS family drives Commands supported by Cheetah T10 SAS family drives Bytes Data hex Mode Sense dataInquiry data Cheetah T10 SAS inquiry dataPage Mode Pages ST3300555SS Mode Sense dataST3146755SS Mode Sense data ST373355SS Mode Sense data Miscellaneous status Miscellaneous operating features and conditionsMiscellaneous features Supported Feature or conditionSAS physical interface Datum B Connector requirements Physical characteristicsSAS pin descriptions Pin Signal name Signal typeElectrical description Pin descriptionsReady LED Out Signal characteristicsPower SAS transmitters and receiversEye masks Eye masks overview LED drive signalDifferential signals General interface characteristicsNormalized time in UI Receive eye maskJitter tolerance masks Absolute amplitudeFrequency in kHz Peak-toSinusoidal JitterSignal characteristica Units Gbps Transmitter signal characteristicsGbps m, n Deterministic jitterq Receiver signal characteristicsSignal characteristic Units Gbps Maximum allowable jitterImpedance requirements Sheet 1 Impedance specificationsReceiver jitter tolerance Compliant jitter test pattern CjtpatElectrical TxRx connections Transmitter characteristicsImpedance requirements Sheet 2 = -5,437dB Shows the zero-length test load Receiver characteristics Cheetah T10 SAS Product Manual, Rev. a Presales Support Seagate Technology support servicesWarranty Service Internet MySeagate Spp.seagate.comData Recovery Services Data Recovery Services Authorized Service CentersToll-free support numbers FAX services-All Europe toll callCall center Presales and Technical Support Warranty Service Africa/Middle East support services Numerics IndexPage SAS See also cooling Page Seagate Technology LLC

ST3300555SS, ST3146755SS, ST373355SS specifications

The Seagate ST373355SS, ST3146755SS, and ST3300555SS represent a range of high-performance hard drives designed for enterprise applications, particularly in server environments requiring reliability, speed, and high capacity.

The ST373355SS is a 73.5 GB SCSI hard drive operating at 15,000 RPM, which ensures rapid data access and superior performance, making it ideal for transactional applications and data-intensive tasks. With its 4 MB cache, the drive leverages fast read and write speeds, enhancing overall system responsiveness. The SCSI interface, operating at 80 MB/s, allows for high-speed data transfers, making it a suitable choice for demanding environments where quick access to information is critical. Its hot-swappable feature enables maintenance without shutting down the system, maximizing uptime and productivity.

The ST3146755SS, with a capacity of 146.8 GB, builds on the performance of its predecessor while introducing improvements in data handling and reliability. Operating at the same impressive 15,000 RPM, this model also features a 16 MB cache that greatly improves data throughput and access speed. The drive is designed to reduce latency, which is crucial for applications where timing is everything. It is equipped with advanced error recovery features and Seagate’s innovative PowerTrim technology, which improves power efficiency during read and write operations. The ST3146755SS also features a higher mean time between failures (MTBF), underscoring its reliability in high-demand environments.

Lastly, the ST3300555SS offers even greater capacity with 300 GB. This drive maintains the 15,000 RPM rotation speed and benefits from a 16 MB cache, providing a balance of speed and storage capacity. Its advanced SCSI interface supports not just speed but also data integrity, ensuring consistent performance during extensive data transfers. The drive is designed to handle workloads naturally associated with enterprise servers, data warehouses, and video editing applications. Its rugged build supports continuous operation and is tested for high-temperature environments to ensure durability.

In summary, the Seagate ST373355SS, ST3146755SS, and ST3300555SS hard drives are engineered for enterprise environments, combining impressive RPM speeds, significant storage capacities, and advanced technologies to deliver reliability, performance, and efficiency for critical applications. These hard drives represent Seagate's commitment to providing solutions that meet the rigorous demands of modern data environments.
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