Idle Immediate E1h/95h | Hitachi HUA722010CLA330/1, HCS721050CLA382

	9.4	Power Management Feature	57
	9.5	SMART Function	59
	9.6	Security Mode Feature Set	61
	9.7	Host Protected Area Feature	67
	9.8	Write Cache Function	69
	9.9	Reassign Function	70
	9.10	Power-up in Standby feature set	71
	9.11	Advanced Power Management feature set (APM)	71
	9.12	48-bit Address Feature Set	72
	9.13	Streaming feature Set	73
	9.14	SATA BIST (Built-in Self Test)	75
	9.15	SATA Interface Power Management	75
	9.16	Software Setting Preservation	76
	9.17	SATA II Optional Features	77
	9.18	SCT Command Transport feature Set	81
10	Command Protocol		100
	10.1	PIO Data In commands	100
	10.2	PIO Data Out commands	101
	10.3	Non-Data commands	101
	10.4	DMA Data In commands and DMA Data Out commands	102
	10.5	First-party DMA commands	102
11	Command Descriptions		103
	11.1	Check Power Mode (E5h/98h)	107
	11.2	Configure Stream (51h)	108
	11.3	Device Configuration Overlay (B1h)	110
	11.4	Download Microcode (92h)	114
	11.5	Execute Device Diagnostic (90h)	116
	11.6	Flush Cache (E7h)	117
	11.7	Flush Cache Ext (EAh)	118
	11.8	Format Track (50h)	119
	11.9	Format Unit (F7h)	121
	11.10	Identify Device (ECh)	122
	11.11	Idle (E3h/97h)	133
	11.12	Idle Immediate (E1h/95h)	135
	11.13 Initialize Device Parameters (91h)		136
	11.14	Read Buffer (E4h)	137
	11.15	Read DMA(C8h/C9h)	138
	11.16	Read DMA Ext (25h)	140
	11.17	Read FPDMA Queued (60h)	142
	11.18 Read Log Ext (2Fh)		144
	11.19	Read Multiple (C4h)	157
	11.20 Read Multiple Ext (29h)		158
	11.21	Read Native Max Address (F8h)	160
	11.22 Read Native Max Address Ext (27h)		161
	11.23	Read Sector(s) (20h/21h)	163
	11.24 Read Sector(s) Ext (24h)		165
	11.25	Read Stream DMA (2Ah)	167
	11.26 Read Stream PIO (2Bh)		170
	11.27 Read Verify Sector(s) (40h/41h)		173
	11.28 Read Verify Sector(s) Ext (42h)		175
	11.29	Recalibrate (1xh)	177
	11.30 Security Disable Password (F6h)		178
	11.31 Security Erase Prepare (F3h)		180
	11.32 Security Erase Unit (F4h)		181

- Hitachi hard disk drive specifications –

HCS721016CLA382, HCS721050CLA382, HCS721025CLA382, HDP725050GLA360, HUA722050CLA330/1 specifications

Hitachi's lineup of hard disk drives, including models such as HDS721075CLA632, HDS721032CLA362, HDS721032CLA662, HDS721050CLA362, and DSDS7210C09EN-04, offers a variety of features catering to different storage needs. These drives are widely recognized for their reliability, performance, and efficiency, making them suitable for both consumer and enterprise applications.

The HDS721075CLA632 model, with a capacity of 750GB, strikes a balance between performance and storage capabilities. It operates at 7200 RPM, ensuring quick access to data while maintaining low latency. Its 32MB cache enhances data transfer rates and improves overall system responsiveness. This HDD is particularly useful for gaming, multimedia, and office applications, allowing users to store a substantial amount of data with quick retrieval times.

The HDS721032CLA362 and HDS721032CLA662 share many similarities and are both designed for budget-conscious consumers. With a capacity of 320GB and a 7200 RPM, they offer efficient storage solutions for everyday tasks. The 32MB cache buffer enables efficient caching of frequently accessed files, providing a smooth experience for users.

Another notable model is the HDS721050CLA362, which features a capacity of 500GB. Like its counterparts, this drive operates at a speed of 7200 RPM and utilizes a 32MB cache, which ensures optimal performance for data-heavy applications. This model stands out for its energy efficiency, resulting in lower operational costs, making it an appealing choice for businesses and energy-conscious consumers alike.

On the other hand, the DSDS7210C09EN-04 is a part of Hitachi's enterprise-oriented offerings. This drive is engineered for demanding applications, featuring advanced technologies such as error recovery controls and enhanced data protection features. With a focus on reliability and performance, the DSDS7210C09EN-04 serves well in server environments and for high-performance computing.

Hitachi's hard drives incorporate various technologies that enhance their performance and durability. Features such as staggered start-up, which gradually powers on the drive, help minimize power surges and increase the longevity of the device. Moreover, Hitachi's commitment to quality ensures that each drive undergoes rigorous testing, guaranteeing functionality and reliability.

Overall, the diverse range of models from Hitachi provides effective solutions for anyone from casual users to enterprises, combining storage capacity with advanced technologies to meet the evolving demands of modern data storage.