Data sheet, Cylinder allocation | Hitachi HDS723020BLA642 specs

7K200 SATA OEM Specification

4.2Data sheet

	200GB	160GB	120GB	100GB	80GB

Rotational Speed (RPM)	7200	7200	7200	7200	7200
Data transfer rates (buffer to/from	876	695	695	876	695
media) (Mbps)
Data transfer rates (Gbit/sec)	1.5/3.0	1.5/3.0	1.5/3.0	1.5/3.0	1.5/3.0
Recording density (Kbit/mm) (Max)
(KBPI) (Max)	994	903	903	994	903
Track density (Ktrack/mm)(Max)
(KTPI)(Max)	164	146	146	164	146
Areal density (Gbit/sq-mm.- Max)
(Gbit/sq-inch - Max)	164	132	132	164	132

Number of zones	24	24	24	24	24

Table 2. Data sheet

4.3Cylinder allocation

Data format is allocated by each head characteristics. Typical format is described below.

	80GB/p Mid BIP-Mid TPI format
Zone	Cylinder			No. of
				Sectors/Trk
0	0	-	5279	1209
1	5280	-	10559	1209
2	10560	-	13759	1196
3	13760	-	18559	1170
4	18560	-	23359	1144
5	23360	-	26559	1131
6	26560	-	28959	1118
7	28960	-	34239	1092
8	34240	-	39039	1053
9	39040	-	43839	1040
10	43840	-	48639	1014
11	48640	-	53439	975
12	53440	-	55839	962
13	55840	-	61279	939
14	61280	-	65279	910
15	65280	-	69119	884
16	69120	-	72479	858
17	72480	-	78559	819
18	78560	-	80159	806
19	80160	-	85279	780
20	85280	-	88959	741
21	88960	-	92959	702
22	92960	-	96799	663
23	96800	-	102399	624

Table 3. Cylinder allocation

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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.

Hitachi HDS723020BLA642 manual Data sheet, Cylinder allocation

Models: HDS723020BLA642