Drive Capacities - HP Compaq d220 MT Reference Manual

4.5 Drive Capacities

The combination of the file system and the operating system used in the computer determines the
maximum usable size of a drive partition. A drive partition is the largest segment of a drive that
may be properly accessed by the operating system. A single hard drive may therefore be
subdivided into a number of unique drive partitions in order to make use of all of its space.
The table that follows identifies the capabilities and restrictions imposed on the computer by the
combinations of file and operating systems.
Microsoft to Drive Manufacturer Size Conversion Table*
Drive Size as Identified by Microsoft
Operating System
*Drive size calculations by drive manufacturers are bytes to the base 10 while calculations by
Microsoft are bytes to the base 2.
File
System
FAT 32 ATA
FAT 32 SCSI
NTFS ATA
NTFS SCSI
Service Reference Guide, d200
2 GB
4 GB
32 GB
64 GB
128 GB
2 TB
Drive/Partition Capacity Limits
Controller
Type
Windows 2000/ XP
Windows 2000/ XP
Windows NT/2000/XP
Windows NT/2000/XP
336493-004
Ultra ATA Drive Guidelines and Features
Drive Size as Identified by
Drive Manufacturers
Operating System
2.1 GB
4.3 GB
34.4 GB
68.7 GB
137 GB
2.199 TB
Maximum Size
Partition Drive
32 GB 128 GB
32 GB 2 TB
128 GB 128 GB
2TB 2TB
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