Models-that-support-200TB-Volumes.md

https://kb.synology.com/en-global/DSM/tutorial/Why_does_my_Synology_NAS_have_a_single_volume_size_limitation

https://kb.synology.com/en-global/DSM/tutorial/What_is_Btrfs_Peta_Volume

• 200TB volumes require 32GB or more of memory.
• Btrfs Peta volumes require 64GB ore more of memory.

NAS requirements	108TB volume	200TB volume	Peta volume	Comment
Required memory		32GB +	64GB +
Required file system		Btrfs	Btrfs
Required RAID type		RAID 5 or 6	RAID 6	See Notes

Notes (by 007revad)

1. 200TB volumes work in SHR if the NAS supports SHR (like a DS1821+ with 32GB or more memory).
2. Peta volumes may work in SHR2 if the NAS supports SHR.

Models that officially support 200TB volumes

• RS2423+, RS2423RP+
• All xs RS and DS models
• All FS models
• All HD models
• All SA models

There are 2 models that support 200TB volumes and SHR, that have no supportraidgroup

1. RS2423+
2. RS2423RP+

Synoinfo setting	108TB volume	200TB volume	Peta volume	Model
supportraidgroup		"yes	"yes"
supportraidgroup				RS2423+
supportraidgroup				RS2423RP+

Models that support 200TB volumes even though Synology says they don't

Model	Memory Needed	File System	RAID Type
DS1522+	32GB or more	Btrfs
DS1621+	32GB or more	Btrfs
DS1821+	32GB or more	Btrfs