Which file systems are supported for the SAP HANA?
(Currently, only XFS, EXT3, GPFS, NFS, and OCFS2 are allowed to be used in the SAP HANA environment.)
What are the components of SAP HANA?
Components of SAP HANA Architecture
- Session and transaction manager—validates and creates sessions for users.
- SQL/MDX processor—used to process incoming SQL or MDX statements.
- Data engines—includes multiple engines depending on your configuration.
- Repository—used to store outputs from the data engines.
What is SAP HANA and how it works?
SAP HANA is a column-oriented in-memory database that runs advanced analytics alongside high-speed transactions – in a single system. It also functions as an application server and helps companies build smart, insight-driven applications based on real-time data, in-memory computing, and machine learning technology.
What is SAP HANA scale out?
There are two options available in SAP HANA: Scale- Up or Scale-Out: Scale-up: This means increasing the size of one physical machine by increasing the amount of resources such as RAM and CPU. Scale-out: This means combining multiple independent nodes/machines into one system.
What is the correct minimum requirement for log volume and Hana shared file system for an SAP HANA database system?
In this case, our minimum requirement for “data” volume would be around 1.6TB, considering the additional 20% free space. The minimum size of log volume depends on the number of data changes occurring between two SAP HANA savepoints which is by default created every five minutes.
What are the 3 layers in SAP workflow architecture?
There are 3 layers in the Workflow Architecture:
- Business Object.
- Business Process.
- Organization Model.
What are the three main concepts of the SAP HANA database?
An SAP HANA system is composed of three main components: the host, the system, and the instance.
What is difference between SAP and SAP HANA?
The Systems, Applications &Products implementation which is popularly known as SAP is an application thatis designed to run an SAP HANA database. SAP HANA, on the other hand, is an in-memory database. In short, SAP is the platform for the SAP HANA database to run. …
What is difference between scale up and scale out in HANA?
Scale up means increasing the size of one physical machine by increasing the amount of RAM available for processing. Scale out means combining multiple independent computers into one system. This allows an SAP HANA system to distribute the load between multiple servers.
What is the difference between HANA scale up and scale out architecture?
What is sizing in SAP HANA?
For the most part, sizing of SAP HANA database is based on the main memory which is determined by the amount of the actual data stored in memory. Therefore, the memory sizing for SAP HANA should be performed using SAP Quick Sizer tool, relevant SAP notes and SAP sizing reports.
What is SAP HANA multiple container structure?
Note that when an SAP HANA system installed in multiple container mode, it will have only one system ID (SID) and tenant databases are identified by a SID and database name. Below figure would provide a better understanding around the overall architecture of SAP HANA Multiple Container Structure.
What file systems are supported by SAP HANA?
For more details, refer to the high availability information in the SAP HANA Administration Guide . The file systems /hana/data/ and /hana/log/ may use shared file systems like NFS, or block storage using the SAP HANA storage connector API with non-shared file systems.
What is Mount directory in SAP HANA?
The mount directory is used for shared files between all hosts in an SAP HANA system, and must be available to each of the servers in the SAP HANA cluster.
What is the default installation path for Hana?
The installation path ( /hana/shared) is visible on all hosts, and by default is also used for backup. Backup directories, however, must belong to a shared file system, and be configured manually.