The Instruction below will help you install and restore your avail testnet node to latest block height with help of snapshots.
sudo apt update
sudo apt install lz4 -y
Please ensure you select the instructions for the correct node type (archive, full, or pruned) and download the relevant snapshot for your node type. Using the wrong snapshot may result in data corruption or unexpected behavior.
NOTE : Use Screen Or Tmux For Non Disruption of Snapshot Installation
Replace <datadir> with your respective data path for avail-node data
rm -rf <datadir>/chains/avail_turing_network/paritydb/full
curl -o - -L <https://snapshots.vaultstaking.com/avail/turing-testnet/pruned/avail-turing-full-latest.tar.lz4> | lz4 -c -d - | tar -x -C <datadir>/chains/avail_turing_network/paritydb/
rm -rf <datadir>/chains/avail_turing_network/paritydb/full
curl -o - -L <https://snapshots.vaultstaking.com/avail/turing-testnet/pruned/avail-turing-pruned-latest.tar.lz4> | lz4 -c -d - | tar -x -C <datadir>/chains/avail_turing_network/paritydb/
rm -rf <datadir>/chains/avail_turing_network/paritydb/full
curl -o - -L <https://snapshots.vaultstaking.com/avail/turing-testnet/pruned/avail-turing-archive-latest.tar.lz4> | lz4 -c -d - | tar -x -C <datadir>/chains/avail_turing_network/paritydb/
After Download and Installation is finished restart the avail service.