Volume Analysis 1. "Volume" can be understood as the logical re-establishment of physical storage devices, easy to operate system management. (a volume is a collection of addressable sectors, the Operating System (OS) or application can use for data storage.) The first sector of a volume is usually its boot record (VBR), which can be viewed as a larger volume, and the boot record should contain a partitioned table within its jurisdiction. The partition table records the starting address and type of the subordinate volume. This gives the "volume" the next recursive definition, that is, it consists of partitioned tables and partitions, and each partition can be treated as a volume until the partition table does not have an extended partition (this idea is the implementation of the DOS Partition extended partition). 2. Unix and Windows look at volumes in different ways, such as
pc-based partition1. Disks that are partitioned by DOS partition type are often referred to as MBR disk, while another GUID partition Table (GPT) disk partitions The MBR's primary partition layout according to the extensible Firmware Interface (EFI) type As follows, the first sector is the MBR (Master boot record) MBR has a maximum of 4 primary partitions, more than 4 need to use the end area as an extended partition, and then as a list of the form of the expansion layer, as
"FSFA reading Notes" Ch4 Volume analysis & Cr 5 pc-based partitions
