What exactly are Channel in Hyperledger Fabric v1?

Question

This is a question related to Fabric v1 architecture:

From my understanding, Peers subscribe to a Channel to the ordering service and then receive the channel related blocks from it as they are created. So:

• Channel is like splitting the Blockchain (partitioning) and therefore I imagine each channel is like an independant chain of blocks with its own incrementing integer sequence number (seqno).
• Each transaction broadcast must be done within the scope of a specific Channel (with, I presume, a default public Channel).

Is this correct?

Clearly Channel can help for scaling but is it also meant to address Privacy?

If so, is there some configuration defining which member has permission access to a particular Channel ?

Answer 1

Channel is used to create sub network(Private). This network have number of peers(member). Purpose of this channel prepare private network and perform confidential transactions.

Each transaction of network executed on Channel.

Each channel have their separate ledger which are stored in each peer on channel.