# Syncing & Packing

{% hint style="info" %}

* When syncing & packing you do not need a private key - you will only need a mining address (aka packing address)
* Your mining address is **not** a private key - it is a public address
* For the following examples we will alway use `En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI` and `Q5EfKawrRazp11HEDf_NJpxjYMV385j21nlQNjR8_pY` as mining addresses. **Replace them with your own address(es) before running the sample commands.**
  {% endhint %}

## 1. Overview

* You're just getting started and need to download and pack data
* You'll sync the data from network peers and pack it as you store it to disk
* You'll pack the data to 16TB disks using the mining address `En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI`
* You'll use the `replica.2.9` packing format and will pack 4 partitions per disk
* You'll use one of the DHA-provided public VDF servers
* You'll use the publicly available NSFW filter provided by Shepherd
* Run your miner with:
  * `sync_jobs` greater than 0 (default is fine)
* See [Running Your Node](/developers/mining/getting-started/configuration.md) for more information

## 2. Sample Directory Structure

* Mount points for 16TB disks that will store the packed data:
  * `/mnt/a`
  * `/mnt/b`
* `data_dir`: `/opt/data`
* Storage module symlinks:
  * `/opt/data/storage_modules/storage_module_0_En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI.replica.2.9` -> `/mnt/a/storage_module_0_En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI.replica.2.9`
  * `/opt/data/storage_modules/storage_module_1_En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI.replica.2.9` -> `/mnt/a/storage_module_1_En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI.replica.2.9`
  * `/opt/data/storage_modules/storage_module_2_En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI.replica.2.9` -> `/mnt/a/storage_module_2_En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI.replica.2.9`
  * `/opt/data/storage_modules/storage_module_3_En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI.replica.2.9` -> `/mnt/a/storage_module_3_En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI.replica.2.9`
  * `/opt/data/storage_modules/storage_module_4_En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI.replica.2.9` -> `/mnt/b/storage_module_4_En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI.replica.2.9`
  * `/opt/data/storage_modules/storage_module_5_En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI.replica.2.9` -> `/mnt/b/storage_module_5_En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI.replica.2.9`
  * `/opt/data/storage_modules/storage_module_6_En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI.replica.2.9` -> `/mnt/b/storage_module_6_En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI.replica.2.9`
  * `/opt/data/storage_modules/storage_module_7_En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI.replica.2.9` -> `/mnt/b/storage_module_7_En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI.replica.2.9`

## 3.Sample Command-line Configuration

```
./bin/start \
    enable randomx_large_pages \
    peer peers.arweave.xyz \
    data_dir /opt/data \
    sync_jobs 200 \
    vdf_server_trusted_peer vdf-server-3.arweave.xyz \
    transaction_blacklist_url https://public_shepherd.arweave.net \
    mining_addr En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI \
    storage_module 0,En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI.replica.2.9 \
    storage_module 1,En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI.replica.2.9 \
    storage_module 2,En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI.replica.2.9 \
    storage_module 3,En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI.replica.2.9 \
    storage_module 4,En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI.replica.2.9 \
    storage_module 5,En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI.replica.2.9 \
    storage_module 6,En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI.replica.2.9 \
    storage_module 7,En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI.replica.2.9 
```

4. Sample Configuration File (config.json)

```
{
    "enable": [ "randomx_large_pages" ],
    "peers": [ "peers.arweave.xyz" ],
    "data_dir": "/opt/data",
    "vdf_server_trusted_peers": [ "vdf-server-3.arweave.xyz" ],
    "transaction_blacklist_urls": [ "https://public_shepherd.arweave.net" ],

    "storage_modules": [
        "0,En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI.replica.2.9",
        "1,En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI.replica.2.9",
        "2,En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI.replica.2.9",
        "3,En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI.replica.2.9",
        "4,En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI.replica.2.9",
        "5,En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI.replica.2.9",
        "6,En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI.replica.2.9",
        "7,En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI.replica.2.9"
    ],
     
    "mining_addr": "En2eqsVJARnTVOSh723PBXAKGmKgrGSjQ2YIGwE_ZRI",

    "sync_jobs": 200
}
```


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