How to install two node HANA-DB cluster with site replication

In the below article we will see how to install a 2-node HANA cluster with Site replication.

Please note: This guide is only for educational usage, please follow SAP notes for official deployments.

Setup Details

• Node 1:
  • IP: 192.168.211.42
  • Hostname: hana-n1
• Node 2:
  • IP: 192.168.211.43
  • Hostname: hana-n2
• iSCSI / NFS Server:
  • 192.168.211.41
• HANA SID: HA1
• HANA Instance: 10
• Site 1: WDF
• Site 2: ROT

Pre-Requisites

• SLES for SAP installed and registered with below mentioned partitions on both Nodes.
• DNS Server configured and resolving hostname of the nodes.
• iSCSI server configured with 2 GB disk shared as iSCSI targets on both Nodes.
• Multipath configured and alias for iSCSI disk set properly for consistency. – (Optional)

Partitioning

Partition	Size
/hana/data	50G
/hana/shared	20G
/hana/log	50G
/usr/sap	10G
NFS: /data	NFS Partition – 50G (Optional)
iSCSI disk for SBD	2 G

SAP Installation

Download and Unzip files

Download the SAP HANA Platform Edition Installation files from SAP Software Download Center

The installation files are kept on the /data, it could be kept locally on individual nodes or on any shared partition accessible by both Nodes.

Extract the file 51057281.ZIP

cd /data
mkdir sap_inst
unzip 51057281.ZIP sap_inst/

Start the Installation

We will install Node 1 first

Node 1

Navigate to HDB_SERVER_LINUX_X86_64 directory and execute hdblcm binary to start the installation

cd sap_inst/DATA_UNITS/HDB_SERVER_LINUX_X86_64
./hdblcm

• Select Option 1 to start Install

• Select Option 2 for Components
• Keep Defaults where ever mentioned

• For System Usage Select Production. Option 1.
• It will not affect the resource consumption, so you can select any.
• Select No for Encryption
• Enter Passwords as required.
• For DB Password it should have 1 upper case.
• Post the reboot option it will give you a summary as below

• If all is good select yes.
• Once finished you should get the below output

Node 2

Once installation is finished repeat the same steps on Node 2 with same SID and Instance Number as on Node 1

We have successfully installed HANA DB on 2 nodes, next step would be to setup replication between these 2 sites, for details refer here.