Logical and Physical Partitions on a Server Disk
Server hard disks can contain up to four partitions. Each partition contains a data area, where the file system resides, and can contain another data area, called the Hot Fix/mirror object, which is used to manage mirroring and Hot Fix redirection.
The entire NetWare partition, including both the data area and the Hot Fix/mirror object, is called the physical partition.
The data area of the partition is called the logical partition.
If you do not use Hot Fix and mirroring, the entire physical partition is the logical partition.
Figure 5
Logical and Physical Partitions on a Server Disk
The logical partition contains four redundant copies of the volume definition table (VDT). Each table contains a list of all volume segments in that partition. A segment is the amount of space you obtain from a storage device. Four copies are maintained for fault tolerance. If a disk error occurs and one table is corrupted, the file system can detect and correct the error.
The rest of the logical partition can contain any number of volume segments.