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冰的啦魔王大人
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作者GCVincent
速度會只低1/3?!


你..... 看得懂英文嗎? 看不懂可以問.

The Quantum Bigfoot brand was a series of hard disk drives produced by Quantum Corp. from 1996 through the late 1990s. The Bigfoot series was notable for deviating from the standard form factor for hard drives. While most desktop hard drives at that time used a 3.5-inch physical format, Quantum Bigfoot drives used a larger 5.25-inch form factor more commonly seen in older hard drives, CD-ROM and other optical disc drives. This form factor allowed Quantum to increase the capacity of their hard drives without an increase in data density, thus lowering costs compared to a 3.5-inch drive with the same capacity. It also allowed manufacturers and owners to install the hard drive above or below the optical drive in the computer, as the typical computer had multiple 5.25-inch bays.


Contents
1 Overview
2 Series
2.1 Quantum Bigfoot (original series)
2.2 Quantum Bigfoot CY
2.3 Quantum Bigfoot TX
2.4 Quantum Bigfoot TS
3 References
4 External links
Overview
The main rationale behind the use of the 5.25-inch form factor was that the typical PC user already owns cases that supports 5.25-inch drives, and by using lower data densities and fewer moving parts, Quantum was able to deliver the products at lower prices, thus more competitively.[1]

Initially, performance in the Bigfoot drives generally lagged behind most other drives of the era,[2] but the large data capacities earned inclusion in many OEM PCs such as ones manufactured by Compaq and HP,[3] as well as popularity with the PC enthusiast community. IBM also used Bigfoot drives in some of their Aptiva PCs even though they were also a major manufacturer of hard drives.[4] Over time, the data density (and therefore the overall capacity) of the drives increased, culminating in the 19.2 GB Bigfoot TS, easily the largest consumer-grade drive available at its release. A side effect of the increased data density was an increase in speed, moving the Bigfoot to middle-of-the-pack status amongst its contemporaries. Unfortunately, the increased manufacturing cost associated with the higher density also caused an increase in price, moving the Bigfoot towards a premium price-point.[5] Over time, increased prices combined with stiff competition caused sales of the drives to decline, leading to the line being discontinued in the late 1990s.[6]

Bigfoot drives were produced by a variety of different plants in Malaysia, Singapore, Japan and other locations. They were among the first to support Logical Block Addressing (LBA) and Self-Monitoring, Analysis, and Reporting Technology (S.M.A.R.T.) monitoring.

Series
Four distinct series of Quantum Bigfoot drives were produced over time, with differences in capacity, spindle speed, access time and supported interface speed.

Quantum Bigfoot (original series)

Retail 1.2/2.5 GB drive
The first generation Quantum Bigfoot drives were introduced around May 1996[7] and offered in capacities of 1.2 GB (1 platter, 2 heads) and 2.5 GB (2 platters, 4 heads),[8] with suggested retail prices of $225 and $370 respectively.These drives offered only ATA-2 PIO Mode 4 and DMA mode 2 support (16.6 MBps) and had an average seek time of 15 ms. Actual transfer rate from the platters was much lower, measured at 813 KB/s by PC Magazine using Disk WinMark 96, slower than a same-capacity/similar-capacity Quantum Fireball (3.5") drive, which delivered 1170 KB/s.[9]

Quantum Bigfoot CY

A 2.1 GB Bigfoot CY next to some 3.5" drives
The second series was the Quantum Bigfoot CY series, introduced around December 1996.[10] Bigfoot CY drives shared the characteristics of a 3,600 RPM spindle speed and an ATA-2 interface connection. These drives had one to three 2.1 GB platters,[11] and were produced in capacities of 2.1 GB, 4.3 GB and 6.4 GB.[10][12] Their access time was advertised as being "as low as 12ms,"[12] and they had 128 KB of cache.[13] The suggested retail prices were $224, $310 and $395, respectively.[10] The largest drive of the CY series could transfer about 6 MB/sec from the platters when tested with hdparm -t in Linux.[14]

Quantum Bigfoot TX
The third series of Bigfoot drives was known as the Quantum Bigfoot TX series. This series increased the drives' spindle speed to 4,000 RPM and upgraded their interface capabilities to ATA-66. These drives carried the higher capacities of 4 GB, 6 GB, 8 GB and 12 GB. Like the CY series, access time was advertised as under 12 ms. The 12 GB model is noteworthy for being the first hard drive to attain a capacity in the double digits of gigabytes. Quantum claimed that these drives could outperform many of the 3.5-inch drives on the market at the time.[15]

Quantum Bigfoot TS
The fourth and final series of Quantum Bigfoot drives produced was the Bigfoot TS series. This series retained the spindle speed and interface speed of its predecessor. The main performance enhancement was a reduction in access time, to "less than 10.5 ms." It was produced in capacities of 6.4 GB, 8.4 GB, 10.0 GB, 12.7 GB and 19.2 GB.[16]

With this series, Quantum again claimed to have the highest capacity on the market with its 19.2 GB model. These drives had a new "shock protection system" designed to make the drives more resilient to physical shock, which Quantum called "one of the leading killers of disk drives." StorageReview found that this series was significantly faster than the TX series, though not as fast as most 3.5-inch drives available at the time. They also found it to be significantly louder than the TX series during use.
     
      

此文章於 2019-05-14 08:06 PM 被 冰的啦魔王大人 編輯.
舊 2019-05-14, 07:58 PM #21
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冰的啦魔王大人離線中  
又見阿鳥
Basic Member
 

加入日期: Apr 2017
文章: 17
現在如果推30T的大腳,效能100MB/S還是能達到的
就算只有4000轉...
因為7000轉的硬碟也差不多有200MB/S上下
這樣的磁片密度,資料傳輸量也就這樣了...
轉的越快,單位磁元得越長....單碟容量就越小

一個大容量的硬碟做冷儲存...SMR又有缺點
加大磁盤..讀寫慢一點.也是可以接受的...

要快,去買3吋半硬碟
錢多,去用SSD組NAS
INTEL PB級的SSD...也應該要出了吧
 
舊 2019-05-14, 10:17 PM #22
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又見阿鳥現在在線上  
tnt2
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加入日期: Jun 2001
您的住址: 奧丁
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搞不好會有人出喔 5.25吋的地方
很多人都是空的 超大儲存量的硬碟
能夠有不錯的故障率 應該會熱賣
__________________

浩瀚無垠的宇宙、不停前進的人類、
永無休止的爭鬥。 不管是以往的歷史,
或未來的展望,是已知,是空想,
只有一件事實存在──
「人類永遠無法自歷史的教訓中學得任何教訓」
舊 2019-05-16, 12:52 PM #23
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tnt2離線中  
Hermit Crab
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加入日期: Oct 2017
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引用:
作者tnt2
搞不好會有人出喔 5.25吋的地方
很多人都是空的 超大儲存量的硬碟
能夠有不錯的故障率 應該會熱賣


+1...
很多人就連光碟槽都是空的...
舊 2019-05-16, 11:30 PM #24
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Hermit Crab離線中  
    回應


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