You should begin by determining the physical sector size of your disk.

您应该首先确定您磁盘的物理扇区大小。

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If an operating system bug, bad disk sector, or even certain superuser errors cause corruption to a file system, using multiple volumes can limit that damage to just one volume.

如果操作系统缺陷、磁盘坏扇区或某些超级用户失误会破坏文件系统，使用多个卷可以把破坏的范围限制在一个卷。

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The MBR is the first sector on the disk, so the partition table is not a very large part of it.

MBR是磁盘上的第一个扇区，因而分区表在其中所占空间不大。

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In an interview with Forbes this morning, Seagate CEO Steve Luczo said the company is expecting the total addressable market for the disk-drive sector in the June quarter to be flat to down slightly from the March period, which he says is typical for the period.

FORBES: Update: Seagate Falls After Deal; June Qtr Guidance Disappoints

Meanwhile, Credit Suisse analyst John Pitzer late yesterday wrote in a research note that the company is likely to post October quarter results below expectations, and to provide January quarter guidance below current estimates, due largely to fallout from the severe flooding in Thailand, which has severely curtailed production in the disk-drive sector.

FORBES: Marvell: JMP Downgrades; Others Trims Estimates

Within the sector, the most important segment is disk drives.

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