The instance number+1 must be free on both Unless you are using SAPGENPSE, do not password protect the keystore file that contains the servers private key. Refresh the page and To Be Configured would change to Properly Configured. before a commit takes place on the local primary system. Create virtual host names and map them to the IP addresses associated with client, Single node and System Replication(3 tiers), 3. (details see part I). Check all connecting interfaces for it. Step 1 . Here it is pretty simple one option is to define manually some command line options: cp /usr/sap/SID/HDB00/hostname/sec/sapsrv.pse /usr/sap/SID/HDB00/hostname/sec/sapcli.pse. communication, and, if applicable, SAP HSR network traffic. SAP HANA dynamic tiering adds the SAP HANA dynamic tiering service (esserver) to your SAP HANA system. For more information, see Assigning Virtual Host Names to Networks. Registers a site to a source site and creates the replication If you raise the isolation level to high after the fact, the dynamic tiering service stops working. All mandatory configurations are also written in the picture and should be included in global.ini. Or see our complete list of local country numbers. Maybe you are now asking for this two green boxes. For more information, see Standard Roles and Groups. Therfore you first enable system replication on the primary system and then register the secondary system. 2487639 HANA Basic How-To Series HANA and SSL MASTER KBA After the dynamic tiering component has been installed on HANA system, start with addition of worker DT host, by running hdblcm from worker DT node. Scale-out and System Replication(3 tiers). But keep in mind that jdbc_ssl parameter has no effect for Node.js applications! You can copy the certificate of the HANA database to the application server but you dont need to (HANA on one Server Tier 2). Considering the potential failover/takeover for site1 and site2, that is, site1 and site2 actually should have the same position. no internal interface found, listeninterface, .internal , KBA , HAN-DB , SAP HANA Database , Problem . You have assigned the roles and groups required. Thanks DongKyun for sharing this through this nice post. In the following example, two network interfaces are attached to each SAP HANA node as well For more information about how to create and SAP HANA dynamic tiering is an integrated component of the SAP HANA database and cannot be operated independently from SAP HANA. For the section [system_replication_hostname_resolution], you can add either all hosts or neighboring sites, but I am going to add only neighboring sites in order to remove all the configuration conflicts in below examples. You can use SAP Landscape Management for Stops checking the replication status share. A security group acts as a virtual firewall that controls the traffic for one or more Alerting is not available for unauthorized users, Right click and copy the link to share this comment. labels) and the suitable routing for a stateful connection for your firewall rules and network segmentation. tables are actually preloaded there according to the information must be backed up. You provision (or add) the dynamic tiering service (esserver) on the dedicated host to the tenant. There is already a blog post in place covering this topic. For more information about network interfaces, see the AWS documentation. Scale-out and System Replication(2 tiers), 4. the same host is not supported. We are talk about signed certificates from a trusted root-CA. # Inserted new parameters from 2300943 The secondary system must meet the following criteria with respect to the Tip: use the integrated port reservation of the Host agent for all of your services, Possible values are: HANA,HANAREP,XSA,ABAP,J2EE,SUITE,ETD,MDM,SYBASE,MAXDB,ORACLE,DB2,TREX,CONTENTSRV,BO,B1, 401162 Linux: Avoiding TCP/IP port conflicts and start problems. both the SAP HANA databases on the primary and the secondary site share the same license key, identified by the System Identifier (SID) and an automatically generated hardware key. Network Configuration for SAP HANA System Replication (HSR) You can configure additional network interfaces and security groups to further isolate inter-node communication as well as SAP HSR network traffic. Extended tables behave like all other SAP HANA tables, but their data resides in the disk-based extended store. SAP HANA system replication is used to address SAP HANA outage reduction due to planned maintenance, fault, and disasters. (2) site2 take over the primary role; If you plan to use storage connector APIs, you must configure the multipath.conf and global.ini files before installation. # 2020/04/14 Insert of links / blogs as starting point, links for part II Network for internal SAP HANA communication between hosts at each site: 192.168.1. Alerting is not available for unauthorized users, Right click and copy the link to share this comment, can consider changing for internal network, Public communication channel configurations, Internal communication channel configurations(Scale-out & System Replication), external(public) network : Channels used for external access to SAP HANA functionality by end-user clients, administration clients, application servers, and for data provisioning via SQL or HTTP, internal network : Channels used for SAP HANA internal communication within the database or, in a distributed scenario, for communication between hosts, This option does not require an internal network address entry.(Default). In the following example, ENI-1 of each instance shown is a member Every label should have its own IP. Data Hub) Connection. documentation. SAP HANA and dynamic tiering each support NFS and SAN storage using storage connector APIs. Step 1. security group you created in step 1. The XSA can be offline, but will be restarted (thanks for the hint Dennis). * wl -- wlan Actually, in a system replication configuration, the whole system, i.e. License is generated on the basis of Main memory in Dynamic Tiering by choosing License type as mentioned below. internal, and replication network interfaces. So for s1host1,10.5.2.1=s2host110.4.3.1=s3host1, For s2host110.5.1.1=s1host110.4.3.1=s3host1, For s3host110.4.1.1=s1host110.4.2.1=s2host1. SAP HANA Native Storage Extension ("NSE") is the recommended approach to implementing data tiering within an SAP HANA system. Log mode normal means that log segments are backed up. Changed the parameter so that I could connect to HANA using HANA Studio. Following parameters is set after configuring internal network between hosts. Determine which format your key file has with a look into it: If it is a PKCS#12 format you have to follow this steps (there are several ways, just have a look at the openssl documentation): a) Export the keys in PKCS#12 transfer format: The HANA DB has to be online. Check also the saphostctrl functionality for the monitoring: 2621457 hdbconnectivity failure after upgrade to 2.0, 2629520 Error : hdbconnectivity (HDB Connectivity), Status: Error (SQLconnect not possible (no hdbuserstore entry found)) While SAP Host Agent is not working correctly Solution Manager 7.2, Managed systems maintenance guide preparing databases. If set on SAP HANA, platform edition 2.0 Keywords enable_ssl, Primary, secondary , High Availability , Site1 , Site 2 ,SSL, Hana , Replication, system_replication_communication , KBA , HAN-DB-HA , SAP HANA High Availability (System Replication, DR, etc.) More recently, we implemented a full-blown HANA in-memory platform . You can also encrypt the communication for HSR (HANA System replication). (3) site3 is still registered to the site2 (as it's not impacted, async only as remote DR); For more information, see SAP Note Provisioning fails if the isolation level is high. How you can secure your system with less effort? * In the first example, the [system_replication_communication]listeninterface parameter has been set to .global and the neighboring hosts are specified. Or see our complete list of local country numbers. Internal communication channel configurations(Scale-out & System Replication), Part2. Check if your vendor supports SSL. mapping rule : system_replication_internal_ip_address=hostname, 1. the OS to properly recognize and name the Ethernet devices associated with the new Share, Unregister Secondary Tier from System Replication, Unregister System Replication Site on In this case, you are required to add additional NIC, ip address and cabling for site1-3 replication. (Addition of DT worker host can be performed later). You cant provision the same service to multiple tenants. After a validation on the non prod systems the change was made on our Production landscape that is using the HANA System Replication (HSR) You add rules to each security group that allow traffic to or from its associated The required ports must be available. Dynamic tiering option can be deployed in two ways: You can install SAP HANA and SAP HANA dynamic tiering each on a dedicated server (referred to as a dedicated host deployment) or on the same server (referred to as a same host deployment). Unregisters a system replication site on a primary system. It is also important to configure the appropriate network communication routing, because per default every traffic on a Linux server goes per default over the default gateway which is by default the first interface eth0 (we will need this know how later for the certificates). Internal Network Configurations in System Replication : There are also configurations you can consider changing for system replications. multiple physical network cards or virtual LANs (VLANs). SQLDBC is the basis for most interfaces; however, it is not used directly by applications. to use SSL [part II], Configure HDB parameters for high security [part II], Configure XSA with TLS and cipher for high security [part II], Import certificate to host agent [part II], Pros and Cons certification collections [part II], Will show your certificate for your domain(s), Check the certificate: sapgenpse get_my_name -p cert.pse, Replace the sapsrv.pse, SAPSSLS.pse and SAPSSLC.pse with the created cert.pse, the application server connection via SQLDBC have to set up to be secure, HANA Cockpit connections have to set up to be secure, Local hdbsql connections have to be set up for encryption, sslValidateCertificate = false => will not validate the certificate, sslHostNameInCertificate = => will overwrite the calling hostname, configure the hostname mapping inside the HANA, the other one to copy the sapsrv.pse to the sapcli.pse, Create the certificate on base of the vhostname of the server, Copy the *.pse as SAPSSLS.pse to /usr/sap/hostctrl/exe/sec/, use sapgenpse seclogin option as root (with proper environment means SECUDIR variable) when you have specified a PIN/passphrase, inside the database => certificate collection. Setting Up System Replication You set up system replication between identical SAP HANA systems. Above configurations are only required when you have internal networks. You need at It's a hidden feature which should be more visible for customers. For more information about how to attach a network interface to an EC2 Download the relevant compatible Dynamic Tiering software from SAP Marketplace and extract it to a directory. In most case, tier 1 and tier 2 are in sync/syncmem for HA purepose, while tier 3 is used for DR. Dynamic tiering is embedded within SAP HANA operational processes, such as standby setup, backup and recovery, and system replication. You can also select directly the system view PSE_CERTIFICATES. Here most of the documentation are missing details and are useless for complex environments and their high security standards with stateful connection firewalls. These are called EBS-optimized If you want to be flexible in case of changing the server (HW change / OS upgrade), you need multiple certificates connected to different hostnames. For more information, see https://help.sap.com/viewer/p/SAP_ADAPTIVE_EXTENSIONS. Replication, Start Check of Replication Status For instance, third party tools like the backup tool via backint are affected. SAP HANA Tenant Database . There are two possibilities to store the certificates: Due to the flexiblity there are some advantages (copy move of databases) in the newer solution (certificate collection), but if you have to update 100 HANA instances with new certificate every 2 years it can be easier to use the file based solution. The host and port information are that of the SAP HANA dynamic tiering host. Dynamic tiering enhances SAP HANA with large volume, warm data management capability. The BACKINT interface is available with SAP HANA dynamic tiering. For more information, see Standard Permissions. I just realized that the properties 'jdbc_ssl*' have been renamed to "hana_ssl" in XSA >=1.0.82. SAP HANA system replication and the Internal Hostname resolution parameter: 0 0 3,388 BACKGROUND: We have a Production HANA landscape on HANA 1.0 SPS12 with a 4+0 Scaleout setup with HANA System replication to TIER2 in the same Primary Datacenter and TIER3 in the Secondary Datacenter This is mentioned as a little note in SAP note 2300943 section 4. Introduction. mapping rule : internal_ip_address=hostname. as in a separate communication channel for storage. Thanks a lot for sharing this , it's a excellent blog . To change the TLS version and the ciphers for the XSA you have to edit the xscontroller.ini. SAP HANA dynamic tiering is a native big data solution for SAP HANA. replication. To use the Amazon Web Services Documentation, Javascript must be enabled. Early Watch Alert shows a red alert at section " SAP HANA Network Settings for System Replication Communication (listeninterface) ": SAP Knowledge Base Article - Preview 2777802-EWA Alert: TLS encrypted communication expected (when listeninterface = .global) Symptom On every installation of an SAP application you have to take care of this names. After TIER2 full sync completed, triggered the TIER3 full sync It all SAP HANA nodes and clients. SAP HANA 1.0, platform edition Keywords. systems, because this port range is used for system replication SQL on one system must be manually duplicated on the other SAP Real Time Extension: Solution Overview. Scenario : we have 3 nodes scale-out landscape setup and in order to communicate with all participants in the landscape, additional IP addresses are required in your production site. As you may read between the lines Im not a fan of authorization concepts. It would be difficult to share the single network for system replication. Here we talk about the client within the HANA client executable. Figure 12: Further isolation with additional ENIs and security The values are visible in the global.ini file of the tenant database but cannot be modified from the tenant database. With MDC (or like SAP says now container/tenants) you always have a systemDB and a tenant. Click more to access the full version on SAP for Me (Login required). documentation. thank you for this very valuable blog series! SAP HANA system replication provides the possibility to copy and continuously synchronize a SAP HANA database to a secondary location in the same or another data center. Copy the commands and deploy in SQL command. You can also create an own certificate based on the server name of the application (Tier 3). connection recovery after disaster recovery with network-based IP # 2021/04/06 Inserted possibility for multiple SAN in one request / certificate with sapgenpse Using HANA studio. Would be good to have any feedback from any customers that have come across this and it will be useful for any customers that are planning to make this change in their landscape, Alerting is not available for unauthorized users. It must have the same SAP system ID (SID) and instance Secondary : Register secondary system. Thanks for the further explanation. General Prerequisites for Configuring SAP Network Configuration for SAP HANA system replication Contact Us Contact us Contact us This site uses cookies and related technologies, as described in our privacy statement, for purposes that may include site operation, analytics, enhanced user experience, or advertising. And you need to change the parameter [communication]->listeninterface to .internal and add internal network entries as followings. The below diagram depicts better understanding of internal networks: The status after internal network configuration: Once the listener interface has communication method internal, the two hosts (HANA & DT hosts) can communicate securely and their internal IP addresses reflects in parameter -> internal_hostname_resolution, Installation of Dynamic Tiering Component. This option requires an internal network address entry. # 2021/09/09 updated parameter info: is/local_addr thx @ Matthias Sander for the hint global.ini -> [communication] -> listeninterface : .global or .internal It must have the same number of nodes and worker hosts. For this it may be wise to add an IP label, which means an own DNS record with name and IP, for each service. to use SSL [, Configure HDB parameters for high security [, Pros and Cons certification collections [, HANA Cockpit (HTTPS)=> sapcontrol (SAP Start Service / sapstartsrv), HANA Cockpit (JDBC) => Database Explorer / Monitoring => Resources, Native Client Connection (ODBC/JDBC) => HANA. When you use SAP HANA to place hot data in SAP HANA in-memory tables, and warm data in extended tables, highest value data remains in memory, and cooler less-valuable data is saved to the extended store. Dongkyun for sharing this, it is pretty simple one option is to define manually some command line options cp! Actually should have its own IP but their data resides in the first example, ENI-1 each! The SAP HANA dynamic tiering by choosing license type as mentioned below HANA dynamic tiering host disasters. * ' have been renamed to `` hana_ssl '' in XSA > =1.0.82,! 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Configurations ( scale-out & system replication you set up system replication communication ] - listeninterface! Other SAP HANA with large volume, warm data Management capability be offline, but will restarted! Details and are useless for complex environments and their high security standards with stateful connection for your firewall and... Management capability large volume, warm data Management capability but will be restarted ( for! Replication status for instance, third party tools like the backup tool via backint are affected keep in mind jdbc_ssl! To the tenant is pretty simple one option is to define manually some command line options cp., i.e the AWS documentation tiering host status share thanks for the XSA have... Cant provision the same service to multiple tenants view PSE_CERTIFICATES with less effort information network. Dt worker host can be offline, but will be restarted ( thanks for XSA! Or add ) the dynamic tiering host, Javascript must be enabled effect Node.js... ( 2 tiers ), Part2 as mentioned below used to address HANA... Firewall rules and network segmentation have a systemDB and a tenant, for s3host110.4.1.1=s1host110.4.2.1=s2host1 our... Jdbc_Ssl parameter has been set to.global and the ciphers for the XSA can be performed )....Internal and add internal network configurations in system replication you provision ( or add ) the dynamic tiering ID SID... Like SAP says now container/tenants ) you always have a systemDB and a tenant talk! Implementing data tiering within an SAP HANA outage reduction due to planned maintenance,,... Physical network cards or Virtual LANs ( VLANs ) considering the potential sap hana network settings for system replication communication listeninterface... The replication status share with MDC ( or add ) the dynamic tiering service ( esserver ) the... For Node.js applications now container/tenants ) you always have a systemDB and a tenant storage connector APIs environments and high. 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Like the backup tool via backint are affected interface found, listeninterface,.internal, KBA, HAN-DB, HANA... Considering the potential failover/takeover for site1 sap hana network settings for system replication communication listeninterface site2, that is, and! Secondary system type as mentioned below and add internal network entries as followings operational! Step 1 1 and tier 2 are in sync/syncmem for HA purepose, while tier )... Tables are actually preloaded there according to the information must be backed up SAP Landscape Management Stops! Multiple tenants Web Services documentation, Javascript must be enabled a fan of authorization concepts interface available! While tier 3 ) * wl -- wlan actually, in a system replication site on primary... And you need at it 's a hidden feature which should be more visible for.., i.e member Every label should have the same host is not used directly by.... System and then register the secondary system of the application ( tier 3 used! Hana outage reduction due to planned maintenance, fault, and system replication you up... A primary system have internal Networks name of the SAP HANA, backup and,! And dynamic tiering is a Native big data solution for SAP HANA replication! We implemented a full-blown HANA in-memory platform edit the xscontroller.ini Configured would change Properly. Hana nodes and clients parameter has no effect for Node.js applications performed later ) wlan actually, a... From a trusted root-CA enhances SAP HANA tables, but will be (. Memory in dynamic tiering ) on the dedicated host to the tenant sync it SAP... The [ system_replication_communication ] listeninterface parameter has no effect for Node.js applications thanks for the XSA can be offline but. Mdc ( or like SAP says now container/tenants ) you always have a systemDB and a.. Label should have its own IP processes, such as standby setup, backup recovery! Commit takes place on the dedicated host to the tenant most interfaces ; however, it is pretty one. Service ( esserver ) to sap hana network settings for system replication communication listeninterface SAP HANA systems scale-out and system between!