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What is the meaning of sector sealing of filecoin mining machine since the main network of filecoin was put online

2020-11-06 20:32:22 Staralliance, Xiaodi

Filecoin Since the main network went online , Sector encapsulation is a big knowledge difficulty for investors .Filecoin What is a sector ? What is sector encapsulation , What is the meaning of encapsulation ? Let's talk about it today .

Sector generally refers to , Sectors on the hard disk , The hard disk is divided into sectors to store data , Read and write hard disk to sector as the basic unit .  V  zhang228289

And in the Filecoin The sector on is not a physical sector on the disk , It is Filecoin Network defined logical sectors .

The sector is Filecoin The basic unit of storage on the , Of standard size (32GiB For a sector ,1TiB=32 Sectors ) And a clear commitment period , Similar to the container in the global freight transport, it generally provides digital storage service . The life cycle of a sector is determined by the storage market , And make clear the commitment period of the sector .

The minimum unit for storing miner data in blockchain data is sector (Sector), The definition of sector is derived from the basic unit of disk reading and writing , The sector stores miners as DSN Guaranteed available storage space provided .

When the storage miner fills a sector with data , To run the sector seal , Seal and submit proof of replication , Only in this way can effective storage be formed , To get the right to package . in addition , It should be noted that , When storing data , It is also possible that the sector is not fully stored and sealed , This will waste part of the storage space .

Sealing is also necessary during the submission of proof of replication . V  zhang228289

According to different sector contents , Not all sectors have the same utility to the network . The concept of sector quality distinguishes different sectors by indicating the existence of valuable data . This distinction is used to allocate more subsidies to higher quality sectors . In order to quantify the contribution of sectors to network consensus capabilities , The following describes some of the relevant parameters .

Raw byte computing power : The original byte of the sector and its sector size .

Weighted byte computing power : Raw byte computing power * Sector quality multiples , This is also the power of consensus ( Effective computing power ).

Sector space time : Multiply the sector size by the sector commitment period ( In the byte era byte-epoch In units of ) decision .

Trade order weight : In a sector, the weight of the transaction order of the verified user is called the weight of the verified transaction order , And greater than the weight of ordinary trading orders .

Trade order quality multiple : Categories of different trading orders ( Committed capacity 、 Normal transactions and authenticated user transactions ) There are different quality multiples to distinguish between rewards .

Sector quality multiples : The sector quality is allocated when the sector is active ( Miners are beginning to prove that they are storing the era of documents ). Sector quality multiples are calculated as the average of transaction quality multiples , And weighted by the amount of time and space occupied by each transaction type in the sector .

Sector encapsulation : Prove by copying (PoRep) Encapsulating sectors is a computationally intensive process , A unique identification code for the sector will be generated . Once the data is encapsulated , Storage miner will generate proof , function SNARK To compress proof of ; Last , Submit the compressed results to the blockchain , As proof of storage commitment .

If , Sector encapsulation failed , Will trigger Filecoin What kind of punishment mechanism does the network have ?

Sector failure costs : When the sector is in a fault state , This fee is paid per sector per day . The amount of expenses is slightly larger than the expected revenue of the sector . If a sector continues to fail for more than two consecutive weeks , The sector will pay the termination fee and delete from the chain . For faulty sectors , The initial value of the fee is 2.14 Days of block rewards .

Sector fault detection fee : If the miner does not report the fault truthfully , Instead, a sector fault was found on the chain , This is a one-time fee paid in the event of a failure . in consideration of PoSt The probability of checking , The cost is what a particular sector can get 3.5 Sky block rewards . V  zhang228289

Sector termination fee : Through automatic fault detection or decision making by miners , Terminate sector before sector expiration . The termination fee charged is in principle equal to the revenue earned so far by the sector , But there is an upper limit , To encourage sectors that promise longer . In active termination , The miners decided to break the contract and stop mining , Pay the termination fee and leave . In fault termination , A sector has been in failure for too long (14 God ), The chain will terminate the transaction and refund the user the remaining order fee and punish the miner to pay this fee . at present , If you terminate a sector before it expires , Then some block rewards obtained by the sector in the early stage will be deducted (≤140 God , Confiscate half of the service time ;>140 God , Will confiscate 70 Day's gain ).

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