硬盘存储革命将使xp用户受到影响-凯发k8官网

硬盘存储革命将使xp用户受到影响
文章来源:未知 文章作者:meng 发布时间:2010-03-10 05:30 字体: [ ] 
(单词翻译:双击或拖选)

hard drives are about to undergo one of the biggest 1 shifts in 30 years.

硬盘驱动器将经历30年来一场最大的格式转变。

windows 7 is one of few operating systems that are
windows 7 is one of few operating systems that are "4k aware"

by early 2011 all hard drives will use an "advanced format" that changes how they go about(着手做,从事) saving the data people store on them.

the move to the advanced format will make it easier for hard drive 2 to produce bigger drives that use less power and are more reliable(可靠的,可信赖的) .

however, it might mean problems for windows xp users who 3(交换,交易) an old drive for one using the changed format.

error codes

since the days of the venerable(庄严的,珍贵的) dos operating system, the space on a hard drive has been 4 into blocks 512 bytes in size.

the 512 byte 5 became standardised thanks to ibm which used it on 6 disks.

while 512 bytes was useful when hard drives were only a few megabytes in size, it makes less sense when drives can hold a terabyte (1000 gigabytes), or more of data.

"the technology has changed but that fundamental building block of 7 has not," said david burks, a product 8 manager for storage firm seagate.

this fine resolution(高分辨率) on hard drives is causing a problem, he said, because of the wasted space associated with each tiny block.

each 512 byte sector has a marker showing where it begins and an area 9 to storing error correction codes. in addition a tiny gap has to be left between each sector. in large drives this wasted space where data cannot be stored can take up a significant proportion of the drive.

moving to an advanced format of 4k 10 means about eight times less wasted space but will allow drives to devote twice as much space per block to error correction.

"you can get yourself into a corner where you cannot squeeze(挤,压榨) much more onto the disk," said steve perkins, a technical 11 for western digital.

this shift also allows manufacturers to make more efficient use of the real estate on a hard drive.

"we can put more data on the disk," he said. "it's about 7-11% more efficient as a format."

slow down

through the international disk drive equipment and materials association (idema国际磁盘驱动器设备和材料协会) all hard drive makers have committed to adopting the 4k advanced format by the end of january 2011.

hard drive makers have begun an education and 12 campaign to let people know about the advanced format and to warn about the problems it could 13 on(使承担) users of older operating systems such as windows xp.

this is because windows xp was released before the 4k format was 14 upon.

"the 512 byte sector assumption is ensconced into a lot of the aspects of computer architecture," said mr burks from seagate.

by contrast, windows 7, 15, os x tiger, 16, snow leopard and versions of the linux 17(内核,核心) released after september 2009 are all 4k aware.

to help windows xp cope, advanced format drives will be able to pretend they still use sectors 512 bytes in size.

when reading data from a drive this 18 will go unnoticed. however, said mr burks, in some situations writing data could hit performance.

in some cases the drive will take two steps to write data rather than one and introduce a delay of about 5 milliseconds.

"all other things being equal you will have a noticeable(显著的) hard drive reduction in performance," said mr burks, adding that, in some circumstances, it could make a drive 10% slower.

in a bid to limit the misalignment(不重合,未对准) , hard drive makers are producing software that ensures 512 sectors line up with 4k ones.

those most likely to see the performance problems are those building their own computers or 19 out an old drive for one that uses the new format.



点击收听单词发音收听单词发音  

1 gijxb     
n.设计,版式;[计算机]格式,dos命令:格式化(磁盘),用于空盘或使用过的磁盘建立新空盘来存储数据;v.使格式化,设计,安排
参考例句:
  • please format this floppy disc.请将这张软盘格式化。
  • the format of the figure is very tasteful.该图表的格式很雅致。
2 22a4efff03ac42c1785d09a48313d352     
n.制造者,制造商(maker的复数形式)
参考例句:
  • the makers of the product assured us that there had been no sacrifice of quality. 这一产品的制造商向我们保证说他们没有牺牲质量。
  • the makers are about to launch out a new product. 制造商们马上要生产一种新产品。 来自《简明英汉词典》
3 crnwe     
n.交换;vt.交换,用...作交易
参考例句:
  • i will swap you my bicycle for your radio.我想拿我的自行车换你的收音机。
  • this comic was a swap that i got from nick.这本漫画书是我从尼克那里换来的。
4 d6662047e8b97c2e90951b68861489e7     
adj. 格式化的 动词format的过去式和过去分词形式
参考例句:
  • recovers data even if drive not formatted message is displayed. 复苏的数据,即使驱动器未格式化的讯息显示。
  • cold-blood vertebrate has formatted multi-cold adaptation artifice in the various habitation environment. 冷血脊椎动物在多种多样栖息环境中形成多种耐寒策略。
5 yjczyn     
n.部门,部分;防御地段,防区;扇形
参考例句:
  • the export sector will aid the economic recovery. 出口产业将促进经济复苏。
  • the enemy have attacked the british sector.敌人已进攻英国防区。
6 xjgx1     
adj.松软的,衰弱的
参考例句:
  • she was wearing a big floppy hat.她戴了顶松软的大帽子。
  • can you copy those files onto this floppy disk?你能把那些文件复制到这张软盘上吗?
7 f9f9c04813a46502873a0c2a3d361ce8     
n.格式化v.使格式化( format的现在分词 );规定…的格式(或形状、大小、比例等);安排…的格局(或规格);设计…的版面
参考例句:
  • select the block of text and-click and choose default formatting. 选择目标文字块,点击鼠标右键,选择默认格式。 来自互联网
  • there are emerging conventions about the content and formatting of documentation strings. 这里介绍文档字符串的概念和格式。 来自互联网
8 boez7e     
n.行销,在市场的买卖,买东西
参考例句:
  • they are developing marketing network.他们正在发展销售网络。
  • he often goes marketing.他经常去市场做生意。
9 duhzy2     
adj.一心一意的;献身的;热诚的
参考例句:
  • he dedicated his life to the cause of education.他献身于教育事业。
  • his whole energies are dedicated to improve the design.他的全部精力都放在改进这项设计上了。
10 218ffb34fa5fb6bc1691e90cd45ad627     
n.部门( sector的名词复数 );领域;防御地区;扇形
参考例句:
  • berlin was divided into four sectors after the war. 战后柏林分成了4 个区。 来自《简明英汉词典》
  • industry and agriculture are the two important sectors of the national economy. 工业和农业是国民经济的两个重要部门。 来自《现代汉英综合大词典》
11 2v0zp3     
n.顾问;会诊医师,专科医生
参考例句:
  • he is a consultant on law affairs to the mayor.他是市长的一个法律顾问。
  • originally,gar had agreed to come up as a consultant.原来,加尔只答应来充当我们的顾问。
12 4ywzdw     
n.意识,觉悟,懂事,明智
参考例句:
  • there is a general awareness that smoking is harmful.人们普遍认识到吸烟有害健康。
  • environmental awareness has increased over the years.这些年来人们的环境意识增强了。
13 ebnz7     
vt.(on)把…强加给,使遭受,使承担
参考例句:
  • don't inflict your ideas on me.不要把你的想法强加于我。
  • don't inflict damage on any person.不要伤害任何人。
14 lvqzzd     
adj.决定了的,坚决的;明显的,明确的
参考例句:
  • this gave them a decided advantage over their opponents.这使他们比对手具有明显的优势。
  • there is a decided difference between british and chinese way of greeting.英国人和中国人打招呼的方式有很明显的区别。
15 jlvzn     
n.远景,深景,展望,回想
参考例句:
  • from my bedroom window i looked out on a crowded vista of hills and rooftops.我从卧室窗口望去,远处尽是连绵的山峦和屋顶。
  • these uprisings come from desperation and a vista of a future without hope.发生这些暴动是因为人们被逼上了绝路,未来看不到一点儿希望。
16 n9xzo     
n.豹
参考例句:
  • i saw a man in a leopard skin yesterday.我昨天看见一个穿着豹皮的男人。
  • the leopard's skin is marked with black spots.豹皮上有黑色斑点。
17 f3wxw     
n.(果实的)核,仁;(问题)的中心,核心
参考例句:
  • the kernel of his problem is lack of money.他的问题的核心是缺钱。
  • the nutshell includes the kernel.果壳裹住果仁。
18 4p1x9     
n.竞争;仿效
参考例句:
  • the young man worked hard in emulation of his famous father.这位年轻人努力工作,要迎头赶上他出名的父亲。
  • his spirit of assiduous study is worthy of emulation.他刻苦钻研的精神,值得效法。
19 8a991dafbba2463e25ba0bc65307eb5e     
交换,交换技术
参考例句:
  • the slow swapping and buying of horses went on. 马匹的买卖和交换就是这样慢慢地进行着。
  • he was quite keen on swapping books with friends. 他非常热衷于和朋友们交换书籍。
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