https://kb.synology.com/ja-jp/DSM/help/DSM/AdminCenter/system_externaldevice_devicelist?version=7
https://kb.synology.com/ja-jp/DSM/tutorial/Which_Synology_NAS_models_support_the_Btrfs_file_system
DSMからbtrfsでフォーマットできないので (ext4とFAT32のみ)
ssh接続して作業する。
- Connect the drive to synology
- SSH to it using your admin credential
- Identify the drive by issuing : df -h ( lets say your drive is /dev/sdr1)
- unmount the drive by issuing: sudo umount /dev/sdr1
- formati the drive in btrfs: sudo mkfs.btrfs /dev/sdr1 -f
https://www.reddit.com/r/synology/comments/bkdv0i/active_backup_for_business_on_external_drive/
上記作業後にイジェクト、USB抜き差しで再認識させる
https://www.reddit.com/r/synology/comments/eupxc7/btrfs_on_external_disks/