DetailPage-MSS-KB

Microsoft small business knowledge base

Article ID: 143148 - Last Review: November 1, 2006 - Revision: 4.1

This article was previously published under Q143148

SUMMARY

When you create a primary, extended or logical drive partitions using Windows NT Disk Administrator, the following partition information appears:

   Minimum size for the partition is     X MB

   Maximum size for the partition is     Y MB   (Y=size of free space)

   Create partition size                 Z MB
				

where X is the minimum size for the partition. Y is the size of available free space and Z is the partition size you want to create.

MORE INFORMATION

The minimum size for the partition varies among different hard disks and hard disk controllers. Every partition must end on a cylinder boundary and the minimum number of cylinders is one. Depending on the capacity of the drive, geometry of the drive and the way the controller translates the drive determines the minimum size for the partition.

The following is an example that calculates the minimum partition size:

 DRIVE     translated geometry   bytes/sector          Equals
Capacity   #heads  X  #sectors      X 512        Minimum Partition size
--------   ------     --------   ------------    -----------------------

1GB         63     X    32          X 512     =  1,032,192 bytes  (1 MB)
2GB         63     X    64          X 512     =  2,064,384 bytes  (2 MB)
4GB        255     X    64          X 512     =  8,355,840 bytes  (8 MB)
				

APPLIES TO
  • Microsoft Windows NT Workstation 3.5
  • Microsoft Windows NT Workstation 3.51
  • Microsoft Windows NT Server 3.5
  • Microsoft Windows NT Server 3.51
Keywords: 
KB143148
Share
Additional support options
Ask The Microsoft Small Business Support Community
Contact Microsoft Small Business Support
Find Microsoft Small Business Support Certified Partner
Find a Microsoft Store For In-Person Small Business Support