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Hitachi HDS723020BLA642 manual Non-Data Commands, DMA Data Transfer Commands

Models: HDS723020BLA642

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7K200 SATA OEM Specification

13.3 Non-Data Commands

These commands are:

Check Power Mode

Device Configuration Freeze Lock

Device Configuration Restore

Execute Device Diagnostic

Flush Cache

Flush Cache Ext

Format Unit

Idle

Idle Immediate

Idle Immediate with Unload option

Initialize Device Parameters

Read Native Max Address

Read Native Max Address Ext

Read Verify Sector(s)

Read Verify Sector(s) Ext

Recalibrate

Security Erase Prepare

Security Freeze Lock

Seek

Sense Condition

Set Features

Set Max Address

Set Max Address Ext

Set Max Lock

Set Max Freeze Lock

Set Multiple Mode

Sleep

S.M.A.R.T. Disable Operations

S.M.A.R.T. Enable/Disable Attribute Autosave

S.M.A.R.T. Enable/Disable Automatic Off-line

S.M.A.R.T. Enable Operations

S.M.A.R.T. Execute Off-line Immediate

S.M.A.R.T. Return Status

S.M.A.R.T. Save Attribute Values

Standby

Standby Immediate

Write Uncorrectable Ext

Execution of these commands involves no data transfer.

13.4 DMA Data Transfer Commands

These commands are:

Read DMA

Read DMA Ext

Write DMA

Write DMA Ext

Initiation of the DMA transfer commands is identical to the Read Sector or Write Sector commands except that the host initializes the slave-DMA channel prior to issuing the command.

The DMA protocol allows high performance multi-tasking operating systems to eliminate processor overhead associated with PIO transfers.

Refer Functional Specification part for further details.

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Hitachi HDS723020BLA642 manual Non-Data Commands, DMA Data Transfer Commands
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HDS723020BLA642 specifications

The Hitachi HDS723020BLA642 is a high-performance hard disk drive that exemplifies the balance between reliability and advanced technology, making it an excellent choice for a range of applications, from desktop computers to enterprise storage solutions. This 2TB SATA hard drive is designed to meet the growing data storage needs of users who demand both speed and efficiency.

One of the key features of the HDS723020BLA642 is its impressive rotational speed of 7200 RPM. This speed facilitates faster data access and improved overall performance, significantly enhancing the user experience during data-intensive operations such as gaming, video editing, and large file transfers. Coupled with a SATA III interface, this drive facilitates data transfer rates of up to 6 Gb/s, providing an efficient conduit for moving data quickly between the hard drive and the motherboard.

The drive comes equipped with a large 64 MB cache, which plays a crucial role in buffering read and write operations. This substantial amount of cache memory allows the drive to temporarily store frequently accessed data, leading to reduced latency and enabling smoother multitasking capabilities. Users will benefit from faster load times and reduced wait periods when working with large files.

Reliability is another defining characteristic of the HDS723020BLA642. Hitachi, now a part of Western Digital, has a longstanding reputation for producing durable hard drives. This model incorporates advanced technologies, such as the Fluid Dynamic Bearing (FDB) for quieter operation and better longevity. The drive also features an enhanced error recovery system that minimizes the risk of data loss, making it a suitable option for both personal and professional use.

In terms of power efficiency, the HDS723020BLA642 is designed to consume less power during operation compared to older hard drive models. This efficiency not only helps in reducing operational costs but also contributes to a longer lifespan for the drive itself.

Overall, the Hitachi HDS723020BLA642 hard drive combines speed, reliability, and efficiency into a compact package, making it an ideal choice for users needing a substantial amount of storage without compromising on performance. Whether for upgrading an existing system or building a new one, this drive offers a blend of technology and durability that caters to modern storage demands.