User's Manual

Oponal Formang and Paroning
LaCie d2 Professional is delivered formatted in exFAT for compatibility with both Windows and Mac
computers. If you use the drive with only one type of computer, you can optimize file copy performance by
formatting the drive in the native file system for your operating system—NTFS for Windows or HFS+ for
Macs. There are two ways you can optimize performance:
Toolkit Optimize—Format your drive for optimal performance with just a few simple clicks.
Manual formatting—Use Disk Management (Windows) or Disk Utility (Mac) to format your drive in non-native
formats.
About file system formats
NTFS—The native file system for Windows. macOS can read NTFS volumes but cannot natively write to
them.
Mac OS Extended (HFS+)—The native hard drive file system for macOS. Windows cannot natively read or
write to HFS+ (journaled) volumes.
APFS (Apple File System)—An Apple file system optimized for solid state drives (SSDs) and flash-based
storage systems. While you can format your hard disk drive (HDD) in APFS, performance may be degraded
when files on the drive are routinely subjected to extensive editing (for example, large-scale image, video,
audio, and music editing).
exFAT—Compatible with Mac and Windows. exFAT is not a journaled file system which means it can be
more susceptible to data corruption when errors occur or the drive is not disconnected properly from the
computer.
FAT32—Compatible with Mac and Windows. However, FAT32 is a legacy file system designed for low
capacity hard drives and it is not recommended for modern hard drives or operating systems. A FAT32
partition can reach up to 32GB when formatted on a Windows PC.
How to choose the file system format
Use NTFS if:
18LaCie d2 Pro fessio nal
1/28/19