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Join SP Network

This guide will help you join SP Network: Mainnet and Testnet.

Prerequisite for Becoming a Mainnet SP

To ensure the stable provision of data services, Storage Providers must meet specific criteria to join the mainnet. - The SP must join the testnet for a minimum of one month. - The SP must store over 1K files across more than 100 buckets on the testnet. - There were no slash event on the SP in the past week.

How to Join SP Network?

Greenfield Blockchain validators are responsible for selecting storage providers. For each on-chain proposal to add new storage provider, there are deposit period for depositing BNB and voting period for validators to make votes. Once the proposal passes, new SP can join the network afterwards.

You can query the governance parameters here.

1. Submit Proposal

The SP needs to initiate an on-chain proposal that specifies the Msg information to be automatically executed after the vote is approved. In this case, the Msg is MsgCreateStorageProvider. It’s worth noting that the deposit tokens needs to be greater than the minimum deposit tokens specified on the chain.

rpcAddr = "https://greenfield-chain.bnbchain.org:443"
chainId = "greenfield_1017-1"

rpcAddr = "https://gnfd-testnet-fullnode-tendermint-us.bnbchain.org:443"
chainId = "greenfield_5600-1"

Hot Wallet Manual

You can use the gnfd command to directly send the transaction for creating a storage provider. To do this, please import the private key of the funding account into the Keystore.

However, it is not safe to use a hot wallet for Mainnet. Instead, you should refer to the Hardware Wallet Manual for instructions on using a hardware wallet.

Command for creating storage provider: 

./build/bin/gnfd tx sp create-storage-provider ./create_storage_provider.json --from {funding_address} --node ${rpcAddr} --chain-id ${chainId} --keyring-backend os

The content for create_storage_provider.json, modify it with the correct values as you need: 

cat ./create_storage_provider.json
{
  "messages":[
  {
    "@type":"/greenfield.sp.MsgCreateStorageProvider",
    "description":{
      "moniker":"{moniker}",
      "identity":"{identity}",
      "website":"{website}",
      "security_contact":"{security_contract}",
      "details":"{details}"
    },
    "sp_address":"{operator_address}",
    "funding_address":"{funding_address}",
    "seal_address":"{seal_address}",
    "approval_address":"{approval_address}",
    "gc_address":"{gc_address}",
    "maintenance_address":"{maintenance__address}",
    "endpoint":"https://{your_endpoint}",
    "deposit":{
      "denom":"BNB",
      # Mainnet: 500000000000000000000, Testnet: 1000000000000000000000
      "amount":"500000000000000000000"
    },
    "read_price":"0.1469890427",
    "store_price":"0.02183945725",
    "free_read_quota": 1073741824,
    "creator":"0x7b5Fe22B5446f7C62Ea27B8BD71CeF94e03f3dF2",
    "bls_key":"{bls_pub_key}",
    "bls_proof":"{bls_proof}"
  }
],
  "metadata":"4pIMOgIGx1vZGU=",
  "title":"Create <name> Storage Provider",
  "summary":"create <name> Storage Provider",
  "deposit":"1000000000000000000BNB"
}

Hardware Wallet Manual

The gnfd command is not available for connecting with the hardware wallet, so you should use the gnfd-tx-sender to send transactions. Here are the steps:

  1. Generate the transaction data. 
    ./build/bin/gnfd tx sp create-storage-provider ./create_storage_provider.json --from {funding_address} --print-eip712-msg-type
  2. Visit the gnfd-tx-sender website.
  3. Add your hardware wallet into Metamask, and connect the wallet.
  4. Navigate to the Custom Tx page and fill in the generated transaction data in step1.
  5. Click the Submit button to send the transaction.

submit proposal

Understanding the Parameters

Note

You can get the gov module address by this command

curl -X GET "https://greenfield-chain-us.bnbchain.org/cosmos/auth/v1beta1/module_accounts/gov" -H  "accept: application/json"
  • endpoint is URL of your gateway
  • read_price and store_price unit is wei/bytes/s
  • free_read_quota unit is Bytes
  • creator is the address of gov module
  • metadata is optional

2. Deposit BNB to Proposal

Note

You can get the mininum deposit for proposal by the above command. Please make sure that the initial deposit is greater than min_deposit when submitting the proposal.

curl -X GET "https://greenfield-chain-us.bnbchain.org/cosmos/gov/v1/params/deposit" -H  "accept: application/json"

You can skip this step if the initial deposit amount is greater than the min deposit required by the proposal.

Each proposal needs to deposit enough tokens to enter the voting phase.

./build/bin/gnfd tx gov deposit ${proposal_id} 1BNB --from ${funding_address} --keyring-backend os --node ${rpcAddr} --chain-id ${chainId}

3. Wait Voting and Check Voting Result

After submitting the proposal successfully, you must wait for the voting to be completed and the proposal to be approved. It will last 7 days on Mainnet while 1 day on Testnet. Once it has passed and is executed successfully, you can verify that the storage provider has been joined.

Warning

Please ensure that the storage provider service is running before it has been joined.

You can check the on-chain SP information to confirm whether the SP has been successfully created.

./build/bin/gnfd query sp storage-providers --node ${rpcAddr}

Alternatively, you can check the proposal to know about its execution status.

./build/bin/gnfd query gov proposal ${proposal_id} --node ${rpcAddr}

4. Activate SP

Storage Provider Standard Test

After the proposal has passed, the status of SP is STATUS_IN_MAINTENANCE. To prevent being slashed due to functional abnormalities, you should first perform a full functional test using the maintenance account. You can refer to the SP standard test.

Update SP status

Once the testing is completed, you need to send a tx to activate the SP to STATUS_IN_SERVICE.

gnfd tx sp update-status [sp-address] STATUS_IN_SERVICE [flags]

Refer to Maintenance Mode for more details.

5. SP address deposit

Funding Address

As a new SP, you need deposit a minimum amount of BNB into the funding address. Please note the initial deposit requirement varies on different environments. You can check the sp.params.min_deposit value (in wei BNB) from genesis endpoint response of Greenfield testnet/mainnet. By the time when this doc is written,

In addition, to join the network in Step 2, an SP must initiate a proposal using a funding address and stake 1 BNB to enter the voting phase. After the voting concludes, the 1 BNB will be refunded to the original account. Therefore, it is advisable for the Funding Address to reserve an additional >1 BNB to cover these costs.

Operator Address

SP operator address will be used to send “Create Global Virtual Group”, “Edit Storage Provider”, “Update Storage Provider Status” and other txs to greenfield chain. So it requires some BNB deposited for transaction fee as well. We recommend SP operator address can hold at least 0.1 BNB but not necessarily as much as possible.

Storage Provider Operations

EditStorageProvider

This command is used to edit the information of the SP, including endpoint, description, etc.

Usage: 

gnfd tx sp edit-storage-provider [sp-address] [flags]

For example, edit the endpoint: 

./build/bin/gnfd tx sp edit-storage-provider ${operator_address} --endpoint ${new_endpoint} --from ${operator_address} --keyring-backend os --node ${rpcAddr} --chain-id ${chainId}

Update SP Price

Update the storage provider read, store price and free read quota, if there is no change to a specific value, the current value should also be provided.

The unit of price is a decimal, which indicates wei BNB per byte per second. E.g. the price is 0.02183945725, means approximately $0.018 / GB / Month. (0.02183945725 * (30 * 86400) * (1024 * 1024 * 1024) * 300 / 10 ** 18 ≈ 0.018, assume the BNB price is 300 USD)

The free-read-quota unit is bytes, for 1GB free quota, it should be 1073741824.

Usage: 

gnfd tx sp update-price [sp-address] [read-price] [store-price] [free-read-quota] [flags]

Example: 

./build/bin/gnfd tx sp update-price ${operator_address} 0.1469890427 0.02183945725 1073741824 --from ${operator_address} --keyring-backend os ---node ${rpcAddr} --chain-id ${chainId}

Update SP Quota

Besides the above update-price command, you can also use the gnfd-sp command to update the free read quota for SP. The update.quota command is used to update the free quota of the SP, it will send a transaction to the blockchain to update the free read quota, but keep the storage price and read price unchanged.

Usage: 

gnfd-sp update.quota [command options] [arguments...]

Example: 

./build/bin/gnfd-sp update.quota --quota 1073741824 --config ./config.toml

Recover SP Objects

Besides the above commands, you can also use the gnfd-sp command to recover objects for SP, whether it is the primary or secondary sp of the object. The recover.object command is used to recover an object or objects of the SP, it will send a request to other SPs to get replicate of the object(s) you want to recover.

Usage: 

gnfd-sp recover.object [command options] [arguments...]

Example: 

./build/bin/gnfd-sp recover.object --config ./config.toml -b bucket_name -o single_object_name
./build/bin/gnfd-sp recover.object --config ./config.toml -b bucket_name -l object_name1//_object_name2//object_name3

Claim SP Income

To claim income, a storage provider can use settle cmd to settle income in global virtual group families or global virtual groups. To find the global virtual group families or global virtual groups to settle, a storage provider can use query.primary.sp.income or query.secondary.sp.income of gnfd-sp commands.

To query the income of a primary sp

Usage: 

# query sp's income in global virtual group families
gnfd-sp query.primary.sp.income --config config.toml --sp.id ${sp_id}

An example of response will look like:

querying primary sp income details for sp  1
query timestamp 1698830787 2023-11-01 17:26:27 +0800 CST
query results: [{"vgf_id":2,"stream_record":{"account":"primary_sp_virtual_payment_account_address_1","crud_timestamp":1698631653,"netflow_rate":"4643666191","static_balance":"1093710972008743","buffer_balance":"0","lock_balance":"0","frozen_netflow_rate":"0"},"income":"2018422795287337"},{"vgf_id":13,"stream_record":{"account":"primary_sp_virtual_payment_account_address_2","crud_timestamp":1698745565,"netflow_rate":"5452639431","static_balance":"38607334626064242","buffer_balance":"0","lock_balance":"0","frozen_netflow_rate":"0"},"income":"39072019463652924"},{"vgf_id":15,"stream_record":{"account":"primary_sp_virtual_payment_account_address_3","crud_timestamp":1698573876,"netflow_rate":"1925652979","static_balance":"55285141693450020","buffer_balance":"0","lock_balance":"0","frozen_netflow_rate":"0"},"income":"55779863125937889"},{"vgf_id":23,"stream_record":{"account":"primary_sp_virtual_payment_account_address_4","crud_timestamp":1698745588,"netflow_rate":"5063874897","static_balance":"2339430126330703","buffer_balance":"0","lock_balance":"0","frozen_netflow_rate":"0"},"income":"2770867203680206"},{"vgf_id":246,"stream_record":{"account":"primary_sp_virtual_payment_account_address_5","crud_timestamp":1698667216,"netflow_rate":"59568181","static_balance":"19326420423320","buffer_balance":"0","lock_balance":"0","frozen_netflow_rate":"0"},"income":"29070047357671"}]

The unit of the unsettled income is wei BNB. The first element in above query result array means the sp 1 gets 2018422795287337 wei BNB in vgf_id 2.

To query the income of a secondary sp

# query sp's income in global virtual groups
gnfd-sp query.secondary.sp.income --config config.toml --sp.id ${sp_id}

An exmaple of response will look like: 

querying secondary sp income details for sp  1
query timestamp 1698830440 2023-11-01 17:20:40 +0800 CST
query results: [{"gvg_id":2531,"stream_record":{"account":"secondary_sp_virtual_payment_account_address_1","crud_timestamp":1695347375,"netflow_rate":"22256589564","static_balance":"917684637479280","buffer_balance":"0","lock_balance":"0","frozen_netflow_rate":"0"},"income":"13073138794535490"},{"gvg_id":8,"stream_record":{"account":"secondary_sp_virtual_payment_account_address_2","crud_timestamp":1696735440,"netflow_rate":"6698761332","static_balance":"24312367733445348","buffer_balance":"0","lock_balance":"0","frozen_netflow_rate":"0"},"income":"6391045453997558"},{"gvg_id":11,"stream_record":{"account":"secondary_sp_virtual_payment_account_address_3","crud_timestamp":1696072153,"netflow_rate":"6832159830","static_balance":"15803326565544654","buffer_balance":"0","lock_balance":"0","frozen_netflow_rate":"0"},"income":"5774730701092644"}
    ...
]
The unit of the unsettled income is wei BNB. The first element in above query result array means the sp 1 gets 13073138794535490 wei BNB in gvg_id 2531. 
# settle income in global virtual group family or global virtual groups
gnfd tx virtualgroup settle [global-virtual-group-family-id] [global-virtual-group-ids] [flags]

Example: 

# query sp's income in global virtual group families
gnfd-sp query.primary.sp.income --config config.toml --sp.id 1

# query sp's income in global virtual groups
gnfd-sp query.secondary.sp.income --config config.toml --sp.id 2

# settle income in global virtual group family with id 100
gnfd tx virtualgroup settle 100 0 [flags]

# settle income in global virtual groups with id 2 or 3 or 4
gnfd tx virtualgroup settle 0 2,3,4 [flags]

Tools

SP can use Greenfield Cmd or DCellar to verify its functions:

Trouble Shooting

If you meet issues, please refer to SP common issues.

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