What file system does Synology Product support (for DSM 3.0 and onward)?
For internal hard drives:
EXT4 is the native file system for DSM 3.0 and onward.
For external hard drives (USB and eSATA):
To format the connected external hard drives, users can choose:
- EXT4 format: the native file system for DSM 3.0.
- EXT3 format: offers better data protection and higher performance.
- FAT32 format: can be used on both Windows and Mac.
In addition, the system supports read and write functions on NTFS formatted external HDD. (Read-only on DS109j, DS108j, DS107 and DS107e)
Please note that the max single file size is 4GB in FAT32 format, and 2TB in EXT3 format on Synology Product.