mkdocs-benoit.jp.net/docs/Various/BackupStrategy.md
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---
format: Markdown
toc: yes
title: Backup Strategy
...
# Servers
- Saber, daily borg backup to Ikachan
- Miku, daily borg backup to Ikachan
- Ikachan, daily borg backup to /backup and to Saber (/backup excluded)
- Ikachan, monthly copy of /backup to OrangeBackupUSBDisk
# Laptop
- Mikubook
- Every hour `/home` borg backup to `/media/sata/$USER/Backups`
- Every day `/` borg backup to `/media/$USER/BACKUP/` (disk **BACKUP_A** or **BACKUP_B** connected)
- Every month manual swapping of disks **BACKUP_A** and **BACKUP_B** on Mikubook-Ikachan
# Desktop
No backup strategy for now...
# Android devices
- OnePlus6, monthly `adb pull` to Mikubook /media/sata/$USER/Backups/Oneplus6
```
$ adb pull -a /sdcard Oneplus6
$ tar cvf - Oneplus6 | lz4 > Oneplus6.tar.lz4 && rm -rf Oneplus6
```
- GalaxyTabS2, monthly `adb backup` in recovery (+tar.gz media) to Mikubook /media/sata/$USER/Backups
```
$ adb backup --twrp --compress system data cache boot efs persist
$ adb exec-out 'tar --create /sdcard1/media/0 2>/backup-errors.txt' | pigz > media.tar.gz
$ adb shell 'dd if=/dev/block/mmcblk0' | lz4 > mmcblk0.img.lz4
$ adb shell 'dd if=/dev/block/mmcblk1' | lz4 > mmcblk1.img.lz4
```
Nextcloud is used for some data (photos, some synced folders) and all contacts, permanent synchronization.