* [[servers:linux:vsftpd#fstab|vsftpd - fstab]]

  * https://unix.stackexchange.com/questions/67539/how-to-rsync-only-new-files
  * https://stackoverflow.com/questions/15787676/rsync-how-to-do-a-checksum-on-rsync

<code>rsync --verbose --recursive --update --ignore-existing --progress '/var/ftp/nas1/' '/var/ftp/nas2/'</code>

===== Main NAS Backup to Back-up =====

  * ''--exclude Videos'' for separate drive

<code>rsync --recursive --update --ignore-existing --verbose --debug='ALL' --exclude 'Videos' '/run/media/espionage724/NAS/' '/run/media/espionage724/20250824-NAS'</code>

<code>--checksum --checksum-choice='md4'</code>

====== ext4 NAS ======

  * 2025/10/20: Windows NTFS -> Linux ext4
  * 10TB Main

===== Format =====

  * ''superfloppy'' partitionless ((not MBR/GPT))

  lsblk

  sudo umount '/dev/sda'*

  sudo wipefs -a -f '/dev/sda' && sudo dd if='/dev/zero' of='/dev/sda' count='8096'

  sudo mkfs.ext4 -D -L 'NAS' -O 'fast_commit' -v '/dev/sda'

===== Mount =====

  * GNOME auto-mounts

  sudo chown -R 'espionage724':'espionage724' '/run/media/espionage724/NAS'

  udisksctl mount --block-device '/dev/sda'

===== 4TB Restore =====

  * 4TB HDD restore to 10TB NAS drive
  * Exclude ''Videos'', ''Games'', ''Music''

<code>rsync --recursive --update --ignore-existing --verbose --debug='ALL' --exclude 'Videos' --exclude 'Games' --exclude 'Music' '/run/media/espionage724/20250824-NAS/' '/run/media/espionage724/NAS'</code>

  * Games

<code>rsync --recursive --update --ignore-existing --verbose --debug='ALL' '/run/media/espionage724/20250824-NAS/Games/' '/run/media/espionage724/NAS/Games'</code>

  * Music (:!: ''&&'' with ''Videos'' overnight)

<code>rsync --recursive --update --ignore-existing --verbose --debug='ALL' '/run/media/espionage724/20250824-NAS/Music/' '/run/media/espionage724/NAS/Music'</code>

  * Videos (some)

<code>rsync --recursive --update --ignore-existing --verbose --debug='ALL' '/run/media/espionage724/20250824-NAS/Videos/' '/run/media/espionage724/NAS/Videos'</code>

===== 2TB USB Restore =====

  * Videos 2 (WD ext)

<code>rsync --recursive --update --ignore-existing --verbose --debug='ALL' '/run/media/espionage724/688EDD408EDD0808/Dragon Ball DBOX' '/run/media/espionage724/NAS/Videos/Anime'</code>

<code>rsync --recursive --update --ignore-existing --verbose --debug='ALL' '/run/media/espionage724/688EDD408EDD0808/Dragon Ball GT' '/run/media/espionage724/NAS/Videos/Anime'</code>

===== Maintenance =====

==== Repair ====

  sync && udisksctl unmount --block-device '/dev/sda'

  sudo e2fsck -D -E 'discard,optimize_extents,inode_count_fullmap,check_encoding,unshare_blocks' -f -v -y '/dev/sda'

==== Defrag ====

  * :!: First-time seemingly takes longer than the whole 5TB+ restore

  udisksctl mount --block-device '/dev/sda'

  sudo e4defrag -v '/dev/sda' && sync && udisksctl unmount --block-device '/dev/sda'