Seagate ST5000VX0001 ユーザーズマニュアル
Seagate Surveillance HDD Product Manual, Rev. B
5
1.0
Introduction
This manual describes the functional, mechanical and interface specifications for the following: Seagate
®
Surveillance HDD
model drives:
These drives provide the following key features:
•
Reliability for 24×7 video surveillance applications
•
Thermal monitoring and reporting for 24×7 operations
•
Uncompromising reliability supports flexible surveillance design with case temperatures up to 70º C
•
Performance-tuned for seamless video applications
•
Built-in error recovery for non-stop video streaming
•
Best-in-class acoustic performance means virtually silent operation
•
Low activity power
•
Idle3 power mode support
•
Supports ATA8 streaming commands
•
1M hour MTBF - designed for high write duty cycle across Surveillance HDD
•
Streaming video optimization - consistent command completion times & ERC support across Surveillance HDD
•
ATA AV Command support - streaming video command support across Surveillance HDD
•
Number of drives supported in surveillance environment:
Non RAID Application, sequential HDD usage model
RAID Application - Surveillance HDD <=16 HDDs
Non RAID Application, sequential HDD usage model
RAID Application - Surveillance HDD <=16 HDDs
•
Transient power on management - <=1.8A spin-up current
•
Rotational Vibration - mitigation of system level rotational vibration inside Surveillance HDD
•
TGMR recording technology provides the drives with increased areal density.
•
State-of-the-art cache and on-the-fly error-correction algorithms
•
Native Command Queuing with command ordering to increase performance in demanding applications
•
Full-track multiple-sector transfer capability without local processor intervention
•
Compliant with RoHS requirements in China and Europe
•
SeaTools diagnostic software performs a drive self-test that eliminates unnecessary drive returns.
•
Support for S.M.A.R.T. drive monitoring and reporting
•
Supports latching SATA cables and connectors
•
Worldwide Name (WWN) capability uniquely identifies the drive
1.1
About the SATA interface
The Serial ATA (SATA) interface provides several advantages over the traditional (parallel) ATA interface. The primary
advantages include:
advantages include:
•
Easy installation and configuration with true plug-and-play connectivity. It is not necessary to set any jumpers or other
configuration options.
configuration options.
•
Thinner and more flexible cabling for improved enclosure airflow and ease of installation.
•
Scalability to higher performance levels.
In addition, SATA makes the transition from parallel ATA easy by providing legacy software support. SATA was designed to
allow users to install a SATA host adapter and SATA disk drive in the current system and expect all of the existing applications
to work as normal.
allow users to install a SATA host adapter and SATA disk drive in the current system and expect all of the existing applications
to work as normal.
The SATA interface connects each disk drive in a point-to-point configuration with the SATA host adapter. There is no master/
slave relationship with SATA devices like there is with parallel ATA. If two drives are attached on one SATA host adapter, the
host operating system views the two devices as if they were both “masters” on two separate ports. This essentially means both
drives behave as if they are Device 0 (master) devices.
slave relationship with SATA devices like there is with parallel ATA. If two drives are attached on one SATA host adapter, the
host operating system views the two devices as if they were both “masters” on two separate ports. This essentially means both
drives behave as if they are Device 0 (master) devices.
The SATA host adapter and drive share the function of emulating parallel ATA device behavior to provide backward
compatibility with existing host systems and software. The Command and Control Block registers, PIO and DMA data transfers,
resets, and interrupts are all emulated.
compatibility with existing host systems and software. The Command and Control Block registers, PIO and DMA data transfers,
resets, and interrupts are all emulated.
The SATA host adapter contains a set of registers that shadow the contents of the traditional device registers, referred to as the
Shadow Register Block. All SATA devices behave like Device 0 devices. For additional information about how SATA emulates
parallel ATA, refer to the “Serial ATA International Organization: Serial ATA Revision 3.0”. The specification can be downloaded
from www.sata-io.org.
Shadow Register Block. All SATA devices behave like Device 0 devices. For additional information about how SATA emulates
parallel ATA, refer to the “Serial ATA International Organization: Serial ATA Revision 3.0”. The specification can be downloaded
from www.sata-io.org.
ST6000VX0001
ST5000VX0001
Note
The host adapter may, optionally, emulate a master/slave environment to host software where two devices on
separate SATA ports are represented to host software as a Device 0 (master) and Device 1 (slave) accessed at
the same set of host bus addresses. A host adapter that emulates a master/slave environment manages two
sets of shadow registers. This is not a typical SATA environment.
separate SATA ports are represented to host software as a Device 0 (master) and Device 1 (slave) accessed at
the same set of host bus addresses. A host adapter that emulates a master/slave environment manages two
sets of shadow registers. This is not a typical SATA environment.