Mac OS X Server: Maximum UFS partition size is less than 1 TB

This article has been archived and is no longer updated by Apple.

The maximum volume size for a UFS partition in Mac OS X Server 10.0.3 or later is just less than 1 TB.

Symptom

You cannot format a UFS volume as 1 TB or larger.

Solution

Use smaller volumes. The maximum volume size for a UFS partition is slightly less than 1 TB. Precisely, it is 2147475488 blocks.

Published Date: Oct 7, 2016