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System replication is better
The so-called SAP message server also belongs to the application layer. Only one instance of this server exists in the system. It mediates between the services and applications. In concrete terms, this means that the message server takes care of load balancing and determines, for example, on which application server a user logs on. Communication between application servers is also the domain of this message server.

In order to make a transaction in cryptocurrencies, you do not have to let your bank know about it as you would for "normal" money, but you have to use the Private Key to prove that you own the coins. The transaction looks like a piece of the puzzle. Half of the puzzle piece consists of information about the coin set, time and public address of the sender or receiver. The other half is the signature of the private key belonging to the sent public address. Both halves make this piece unique. Changing only one piece of information would completely change the whole transaction or the appearance of the puzzle piece. This transaction is transferred to the network or to the miner and is checked for correctness first. If everything fits, the transaction will be sent to other miners who will do the same. Otherwise, the transaction is ignored. Miners try to integrate the transactions into a block. This is called mining and we have described it so that the miners put the puzzle pieces together into a puzzle (block). A small part of a block to be integrated follows from the block that was previously mined. If all miners accept the correctness of a completed block, they will all work the next one immediately. The puzzle (block) is fixed and is irrevocably connected to the block before or after. The blocks form a chain and are called blockchain, which contains all the transactions that have ever been made and is visible and unchangeable by everyone. In doing so, blockchain replaces a central institution and avoids double-spending, which ultimately gives value to a cryptocurrency. Smart Contracts The biggest advance compared to Bitcoin and similar applications is that second-generation blockchains, such as Ethereum, use the so-called Turing-Complete script language Solidity. This enables calculations to be made within the blockchain. While Bitcoin allows only rudimentary multi-signature functions, Ethereum opens the door to much more complex operations called smart contracts. Smart contracts are contracts in which a decentralised blockchain ensures their unchangeability and execution.
SE11 ABAP Dictionary
There is no way around containers, and even SAP will soon have to reorient itself here and allow the NetWeaver stack to be run in containers. There are many indications that Kubernetes will win the battle for supremacy among container management tools. SAP has also already invested in Gardener and is also intensifying its partnerships with IBM and Red Hat Openshift.

SAP Basis is the foundation of any SAP system. You can find a lot of useful information about it on this page:

We take over the complete maintenance management for you and ensure that your SAP installation is always up to date. As a certified SAP Gold Partner and PCoE (Partner Center of Expertise), we can provide you with all the SAP licenses you need. We advise you on the possible licensing models and only provide you with the licenses you actually need.

"Shortcut for SAP Systems" makes it easier and quicker to complete a number of SAP basis tasks.

Monitoring tools can automatically scan the application logs, identify potential errors, and even suggest fixes, making it much easier to get to the root of the problem.

The freeware Scribble Papers puts an end to the confusing paper chaos. The tool is also suitable for storing, structuring and quickly finding text documents and text snippets of all kinds in addition to notes.

SAP Basis refers to the IT underlying the SAP system.
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