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Synology

synology design overview

Capacity planning

The primary function of a NAS is to store, share and keep data redundant.

Hard drives are paired up in a RAID configuration and work together to avert data loss. https://www.synology.com/en-us/support/RAID_calculator

Note: The type of RAID chosen will affect the storage capacity, or total disk space.

Plan the storage capacity before setup, consider past present and future needs.

On models with 6+ hard drive bays, populate all bays -2 to leave room to grow the capacity for future needs.

Set up all available hard drives as one pool.

Backups

Consider backup as mandatory and RAID as high-availability (HA).

Schedule off-site backup to https://eu.c2.synology.com/ (or other).

frequency

  • every 8 hours (3x daily) = small business
  • every 4 hours (6x daily) = medium business

Integrity check once a weekly.

Target non-peak workload hours for backup/integrity checks.

sample schedule

synology_backup_schedule

Snapshot Replication

https://kb.synology.com/en-us/DSM/tutorial/Quick_Start_Snapshot_Replication

Prerequisites

  • install package "snapshot replication"
  • Requires Btrfs volume (shared folder) or LUN.

A snapshot is a point-in-time copy of each file/directory on a volume from which you can recover from in case you need it.

Only file changes (deltas) on the volume are saved since the snapshot was created.

Note: Snapshots of encrypted shared folders cannot be browsed. Rollback the snapshot to a new volume to browse files/directories.

Sample schedule

synology_snapshotreplication

  • frequency: every 15 minutes
  • keep all snapshots for: 14 days
  • make snapshot visible (ticked)

SynologyDrive on Linux,

Synology prerequisites

  • install package "synology drive"
  • enable "User Home" service: Control Panel > "User & Group" > Advanced > Enable user home service
  • optional, change the number of versions to keep of each file: Synology Drive Admin Consol > Team Folder > Versioning

Linux workstation

Enable flathub repository.

sudo flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo

Install Synology drive.

flatpak install com.synology.SynologyDrive

Autostart synology drive on login (Gnome)

mkdir ~/.config/autostart
cp /var/lib/flatpak/exports/share/applications/com.synology.SynologyDrive.desktop ~/.config/autostart/

Optional: configure appindicator to receive notifications.

sudo dnf install gnome-shell-extension-appindicator -y

Complete the set up by launching the synology drive application.

Optional: link files and folders to synology drive.

mv ~/.bashrc ~/drive/bashrc
ln -s ~/drive/bashrc ~/.bashrc

mv ~/.bash_history ~/drive/bash_history
ln -s ~/drive/bash_history ~/.bash_history

mv ~/.ssh ~/drive/ssh
ln -s ~/drive/ssh ~/.ssh

rmdir ~/Documents
ln -s ~/drive/documents/ ~/Documents