苹果DOS 3.1每个磁盘条使用13个扇区的数据。
然后BIOS试图执行这个扇区。
为何更改为4096字节扇区？
GRUB安装在设备扇区0，仅此而已。
然后它加载内核或者其它操作系统的引导扇区。
It then loads kernels or the boot sectors of other operating systems.
遗憾的是，在固件中改变表面扇区大小会降低性能。
Unfortunately, changing the apparent sector size in firmware can degrade performance.
传统上，硬盘驱动器会格式化为512字节的扇区。
Traditionally, a hard drive is formatted into 512 byte sectors.
当这导致某些扇区或节点无效时，将最终丢失宝贵的数据。
When this makes some sectors or inodes invalid, you will end up losing valuable data.
BIOS加载启动设备的第一个扇区并运行其包含的代码。
The BIOS loads the first sector of the boot device and executes the code it contains.
将要显示的默认文本只是扇形图特定扇区的标签。
The default text that will be shown is just the label for the particular slice of the pie.
该操作所需时间比4096字节占用一个扇区时所需时间多。
This operation takes longer than when the 4096 bytes occupy a single sector.
第一个扇区从引导设备上加载内核的其余部分继续引导过程。
This first sector will continue the boot process by loading the rest of the kernel from the boot device.
在本文撰写之时，驱动器制造商开始生产具有4k扇区的磁盘。
At the time of this writing, drive manufacturers are starting to introduce disks with 4k sectors.
机器老化或者硬盘使用过度的话，磁盘上的扇区最终就会坏掉。
With a machine that’s aging or whose hard drive has seen excessive use, sectors on that drive can wind up bad.
这种行为提高了恢复一个事故或一个坏扇区导致的损坏的成功几率。
This behavior improves the odds of successful recovery in case of damage from an accident or a bad sector.
在我的电脑窗口中，右键单击您要查找硬盘坏扇区，然后单击属性。
In the Computer window (My Computer in Windows XP), right-click the hard disk you want to search for bad sectors, and then click Properties.
引导扇区总是在同一个位置—引导设备的磁道0、柱面0、磁头0。
The boot sector is always at the same place-track 0, cylinder 0, head 0 of the boot device.
通过该版本，您可以指定1m的起始值，然后扇区将得到合理对齐。
With this version, you can specify a starting value of 1m and the sector will be properly aligned.
在我的电脑窗口中，右键单击您要查找硬盘坏扇区，然后单击属性。
In the My Computer window, right-click the hard disk you want to search for bad sectors, and then click Properties.
磁盘盘片在无需移动磁头的前提下即可读取的所有扇区组成一个磁道。
All the sectors on a disk platter that can be read without moving the head constitute a track.
唯一不默认的就是对于图表中的那些扇区您具有自定义标签。
The only thing that is not default about it is that you have custom labels for the slices on the chart.
正如之前所述，来自BIOS的软件可能包括关于硬盘扇区大小的假设。
As noted earlier, software from the BIOS up may contain assumptions about a hard disk's sector size.
如果您调整过该文件系统，扇区列表将会无效，导致GRUB不能启动。
If you ever adjust that file system, the sector list may become invalid, resulting in GRUB's inability to boot.
加载程序不是安装在MBR中，就是安装在活动主分区的第一个扇区中。
Either loader is installed at the MBR or at the first sector of the active primary partition.
在检查磁盘对话框中，选择扫描和试图恢复坏扇区复选框，然后单击开始。
In the check Disk dialog box, select the Scan for and attempt recovery of bad sectors check box, and then click Start.
这转化成用于最优磁盘性能的8扇区对齐和用于旧版操作系统的柱面对齐。
This translates to 8-sector alignment for optimum disk performance as well as cylinder alignment for the older operating system.
尽管向4096字节扇区的转变已经酝酿了多年，有些工具仍未做好准备。
Although a change to a 4096-byte sector size has been brewing for a decade or so, some tools still aren't ready.
然后您可以在扇区中手动输入分区起始点，并精确检验分区起始点。
You can then manually enter partition start points in sectors and verify partition start points precisely.
坏扇区降低硬盘性能，有时甚至使数据写入(如文件保存)困难，甚至是不能。
Bad sectors slow down hard disk performance and sometimes make data writing (such as file saving) difficult, or even impossible.
坏扇区降低硬盘性能，有时甚至使数据写入(如文件保存)困难，甚至是不能。
Bad sectors slow down hard disk performance and sometimes make data writing (such as file saving) difficult, or even impossible.
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