Validator Node Snapshot

First of all, you can get a snapshot copy for RocksDB type on the following website based on region. This included Kusama, Polkadot and Testnet Westend.
https://www.1kvnode.com/snapshot
1 - What is a snapshot?
As validators! nodes can crush and affect the APY of the Staking, it is very important for the validator to restore the node as soon as possible. Else, you will be losing your nominators. The main purpose of the snapshot is to allow specific restoration of the validator's infrastructure from taking 10-11 days to sync (it was 4 days when I started validation) complete the chain in Kusama or Polkadot. The restoration will allow the team to reduce the gap of the sync from 11 days to nearly somewhere