start rsync article

.gitignore

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+# Compiled
+*.elc
+
+# Packaging
+.cask
+
+# Backup files
+*~
+
+# Undo-tree save-files
+*.~undo-tree
+

blog/src/backup_strategy.org

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+
+--dry-run does not produce the same output file. Use: remove
+--info=progress 2 and use --itemize-changes
+#+begin_src 
+rsync -e ssh user@archimede.local:/media/asparagi/ /media/asparagi \
+      --info=progress2  --log-file ~/rsync.log \
+      --archive --verbose --human-readable --links --update --delete \
+      --dry-run # warrant against copy-paste
+#+end_src
+NOTA GLI SLASH
+
+
+#+begin_verbatim
+YXcstpoguax  path/to/file
+|||||||||||
+||||||||||╰- x: The extended attribute information changed
+|||||||||╰-- a: The ACL information changed
+||||||||╰--- u: The u slot is reserved for future use
+|||||||╰---- g: Group is different
+||||||╰----- o: Owner is different
+|||||╰------ p: Permission are different
+||||╰------- t: Modification time is different
+|||╰-------- s: Size is different
+||╰--------- c: Different checksum (for regular files), or
+||              changed value (for symlinks, devices, and special files)
+|╰---------- the file type:
+|            f: for a file,
+|            d: for a directory,
+|            L: for a symlink,
+|            D: for a device,
+|            S: for a special file (e.g. named sockets and fifos)
+╰----------- the type of update being done::
+             <: file is being transferred to the remote host (sent)
+             >: file is being transferred to the local host (received)
+             c: local change/creation for the item, such as:
+                - the creation of a directory
+                - the changing of a symlink,
+                - etc.
+             h: the item is a hard link to another item (requires 
+                --hard-links).
+             .: the item is not being updated (though it might have
+                attributes that are being modified)
+             *: means that the rest of the itemized-output area contains
+                a message (e.g. "deleting")
+#+end_verbatim
+#+begin_verbatim
+>f+++++++++ some/dir/new-file.txt
+.f....og..x some/dir/existing-file-with-changed-owner-and-group.txt
+.f........x some/dir/existing-file-with-changed-unnamed-attribute.txt
+>f...p....x some/dir/existing-file-with-changed-permissions.txt
+>f..t..g..x some/dir/existing-file-with-changed-time-and-group.txt
+>f.s......x some/dir/existing-file-with-changed-size.txt
+>f.st.....x some/dir/existing-file-with-changed-size-and-time-stamp.txt 
+cd+++++++++ some/dir/new-directory/
+.d....og... some/dir/existing-directory-with-changed-owner-and-group/
+.d..t...... some/dir/existing-directory-with-different-time-stamp/
+#+end_verbatim
+
+mergerfs /mnt/a1/:/mnt/b1/:/mnt/d1/:/mnt/e1/ /media/asparagi -o
+threads=6,allow_other,use_ino,cache.files=off,dropcacheonclose=true,category.create=mfs,moveonenospc=true,minfreespace=20G,fsname=mergerfsPool,nonempty