Internal communication channel configurations(Scale-out & System Replication), Part2. In my opinion, the described configuration is only needed below situations. Data Lifecycle Manager is a generic database-driven tool that enables you to model aging rules on SAP HANA tables to relocate aged or less frequently used data from SAP HANA tables in native SAP HANA applications. When you launch an instance, you associate one or more security groups with the Recently we started receiving the alerts from our monitoring tool: The primary replicates all relevant license information to the * In the first example, the [system_replication_communication]listeninterface parameter has been set to .global and only the hosts of the neighboring replicating site are specified. Wanting to use predictable network device names in a custom way is going, * Two character prefixes based on the type of interface: It is also possible to create one certificate per tenant. Although various materials and documents for HANA networks have been available to ease your implementations and re-configurations, you might have found it time-consuming and experienced a hard time to see a whole picture at a glance. By default, on every installation the system gets a systempki (self-signed) until you import an own certificate. System replication cannot be used in SAP HANA systems in which dynamic tiering is enabled. Disables the preload of column table main parts. different logical networks by specifying multiple private IP addresses for your instances. Step 1 . If you plan to use storage connector APIs, you must configure the multipath.conf and global.ini files before installation. SAP User Role CELONIS_EXTRACTION in Detail. The bottom line is to make site3 always attached to site2 in any cases. Here you can reuse your current automatism for updating them. 3. Figure 10: Network interfaces attached to SAP HANA nodes. 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 If you use a PIN/passphrase keep in mind that you have to use sapgenpse seclogin option to create the cred_v2 file inside the SECUDIR: Sign the certificate signing request with a trusted Certificate Authority (CA) as pkcs7 which will include all CA certificates. Pre-requisites. Otherwise, please ignore this section. Internal communication is configured too openly In general, there is no needs to add site3 information in site1, vice versa. Switches system replication primary site to the calling site. (check SAP note 2834711). Operators Detail, SAP Data Intelligence. Scale-out and System Replication(3 tiers). You can also encrypt the communication for HSR (HANA System replication). It must have the same SAP system ID (SID) and instance documentation. * You have installed internal networks in each nodes. Step 2. SAP is using mostly one certificate for all components (host agent, DAA, SystemDB, Tenant) which belongs to the physical hostname (systempki). Changes the replication mode of a secondary site. Updated the listeninterface and internal_hostname_resolution parameters for the respective TIER as they are unique for every landscape General Prerequisites for Configuring SAP You can configure additional network interfaces and security groups to further isolate SAP HANA Network Settings for System Replication 9. properties files (*.ini files). There are two types of network used in HANA environment: Since we have a distributed scenario here, configuration of internal network becomes mandatory for better system performance and security. isolation. Scale-out and System Replication(2 tiers), 4. The use of TLS/SSL should be standard for every installation, but to use it on every SAP instance you have to read a lot of documentation and sometimes the provided details are not helpful for complex environments. To pass the connection parameters to the DBSL, use the following profile parameter: dbs/hdb/connect_property = param1, param2, ., paramN, https://help.sap.com/viewer/b3ee5778bc2e4a089d3299b82ec762a7/2.0.04/en-US/0ae2b75266df44499d8fed8035e024ad.html. Separating network zones for SAP HANA is considered an AWS and SAP best practice. Before we get started, let me define the term of network used in HANA. Search for jobs related to Data provisioning in sap hana or hire on the world's largest freelancing marketplace with 22m+ jobs. Internal Network Configurations in System Replication : There are also configurations you can consider changing for system replications. 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 Extracting the table STXL. 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. Though it's definitely not easy to go with so much secure setup for even an average complex landscape, hoping there will be a day when there would be a single instance for everything and hits on this blog would go sky-high , I just published mine https://blogs.sap.com/2020/04/14/secure-connection-from-hdbsql-to-sap-hana-cloud/ and now seeing yours But where you use -sslcertrust I dig deeper how to make sure HANA server authentication works from hdbsql , Great post Vitaliy! To learn more about this step, see In particolare, la configurazione usa la replica di sistema HANA (HSR) e Pacemaker in macchine virtuali Linux (VM) di Azure Red Hat Enterprise. 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. Enables a site to serve as a system replication source site. Attach the network interfaces you created to your EC2 instance where SAP HANA is As mentioned earlier, having internal networks are essential in production system in order to get the expected response time and optimize the system performance. Solution Secure Network Settings for Internal SAP HANA Services To avoid opening an attack vector in an SAP HANA system, it is necessary to configure the settings for internal service communication in the recommended way. Understood More Information On AS ABAP server this is controlled by is/local_addr parameter. documentation. Understood More Information Configure SAP HANA hostname resolution to let SAP HANA communicate over the subfolder. All mandatory configurations are also written in the picture and should be included in global.ini. operations or SAP HANA processes as required. Multiple interfaces => one or multiple labels (n:m). Perform SAP HANA With DLM, you can model data migration rules on SAP HANA tables, and move data at specified times between high performance SAP HANA memory and a lower cost storage and processing tier. Any ideas? Comprehensive and complete, thanks a lot. ISSUE: We followed the SAP note 2183363, and updated the listeninterface and internal_hostname_resolution HANA parameters on our non prod systems in a similar scaleout setup. If this is not possible, because it is a mounted NFS share, Global Network Changed the parameter so that I could connect to HANA using HANA Studio. It would be difficult to share the single network for system replication. You need a minimum SP level of 7.2 SP09 to use this feature. global.ini -> [communication] -> listeninterface : .global or .internal You can also create an own certificate based on the server name of the application (Tier 3). Communication Channel Security; Firewall Settings; . The parameter listeninterface=.global in the section [system_replication_communication] is used for system replication. 2386973 - Near Zero DowntimeUpgradesforHANADatabase 3-tierSystemReplication. Do you have similar detailed blog for for Scale up with Redhat cluster. more about security groups, see the AWS But the, SAP app server on same machine, tries to connect to mapped external hostname and if tails of course. Therfore you first enable system replication on the primary system and then register the secondary system. Checks whether the HA/DR provider hook is configured. SAP HANA supports asynchronous and synchronous replication modes. IMPORTANT : the parameters in the global.ini must be set prior to registering the secondary system which means that you need to un-register and re-register if you want to change the configurations. To detect, manage, and monitor SAP HANA as a For your information, having internal networks under scale-out / system replication is a mandatory configuration in your production sites. In system replication, the secondary SAP HANA system is an exact copy of the active primary system, with the same number of active hosts in each system. communications. Network and Communication Security. For more information, see Configuring Instances. So site1 & site3 won't meet except the case that I described. We continue to fully maintain the SP05 version and deliver PL releases as necessary but there are no plans to release newer SP versions for DT. SAP Real Time Extension: Solution Overview. For more information, see https://help.sap.com/viewer/p/SAP_ADAPTIVE_EXTENSIONS. SAP HANA dynamic tiering is a native big data solution for SAP HANA. In the following example, ENI-1 of each instance shown is a member recovery). In Figure 10, ENI-2 is has its own security group (not shown) to secure client traffic from inter-node communication. Most will use it if no GUI is available (HANA studio / cockpit) or paired with hdbuserstore as script automatism (housekeeping). 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). thank you for this very valuable blog series! * Dedicated network for system replication: 10.5.1. that the new network interfaces are created in the subnet where your SAP HANA instance * Internal networks are physically separate from external networks where clients can access. 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 More and more customers are attaching importance to the topic security. Configuring SAP HANA Inter-Service Communication, Configuring Hostname Resolution for SAP HANA System Replication, Configuration for logical network separation, AWS We are not talking about self-signed certificates. 2487731 HANA Basic How-To Series HANA and SSL CSR, SIGN, IMPLEMENT (pse container ) for ODBC/JDBC connections. Overview. In multiple-container systems, the system database and all tenant databases (details see part I). For instance, third party tools like the backup tool via backint are affected. How you can secure your system with less effort? global.ini -> [system_replication_hostname_resolution] : A service in this context means if you have multiple services like multiple tenants on one server running. We're sorry we let you down. secondary. SAP HANA Network Requirements Contact Us Contact us Contact us Home 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. There is already a blog about this configuration: https://blogs.sap.com/2014/01/17/configure-abap-to-hana-ssl-connection/ recovery. SAP HANA Network and Communication Security, 2478769 Obtaining certificates with subject Alternative Name (SAN) within STRUST, 2487639 HANA Basic How-To Series HANA and SSL MASTER KBA, Darryl Griffiths Blog from 2014 SAP HANA SSL Security Essential, Certificate chain (multiple certificates in one file), cryptography toolkit implementing the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) network protocols. * Dedicated network for system replication: 10.5.1. of the same security group that controls inbound and outbound network traffic for the client The BACKINT interface is available with SAP HANA dynamic tiering. Find SAP product documentation, Learning Journeys, and more. This note well describes the sequence of (un)registering/(re)registering when operating replication and upgrade. mapping rule : internal_ip_address=hostname. Deploy SAP Data Warehouse Foundation (Data Lifecycle Manager) Delivery Unit on SAP HANA. (Storage API is required only for auto failover mechanism). Configuring SAP HANA Inter-Service Communication in the SAP HANA United States. # 2021/03/18 Inserted XSA high security Kudos out to Patrick Heynen groups. mapping rule : internal_ip_address=hostname. * The hostname in below refers to internal hostname in Part1. An optional add-on to the SAP HANA database for managing less frequently accessed warm data. For instance, you have 10.0.1. Please note that SAP HANA Dynamic Tiering ("DT") is in maintenance only mode and is not recommended for new implementations. You comply all prerequisites for SAP HANA system From HANA system replication documentation(SAP HANA Administration Guide -> [Availability and Scalability] -> [High Availability for SAP HANA] -> [Configuring SAP HANA System Replication] -> [Setting Up SAP HANA System Replication] -> [Host Name Resolution for System Replication]), as similar as internal network configurations in scale-out system, there are 2 configurable parameters. We used NFS storage in our case which has following requirement: The actual architecture that we followed is as follows: Dedicated host deployment with /hana/shared/ mounted on both the hosts. To give context - We are using HANA SSL certificates, which are valid for 1 year and before it gets expire we need to renew it, so we want to do Monitoring to get alerts of it either by Cockpit/ Splunk or other home grown tools via Perl/any other scripting, so any one knows more about it?? It In a traditional, bare-metal setup, these different network zones are set up by having Since quite a while SAP recommends using virtual hostnames. An overview over the processes itself can be achieved through this blog. See Ports and Connections in the SAP HANA documentation to learn about the list automatically applied to all instances that are associated with the security group. The change data for the parameters ssfs_masterkey_changed and ssfs_masterkey_systempki_changed archived in the view SYS.M_HOST_INFORMATION is changed. SAP Host Agent must be able to write to the operations.d is configured to secure SAP HSR traffic to another Availability Zone within the same Region. The OS process for the dynamic tiering host is hdbesserver, and the service name is esserver. system, your high-availability solution has to support client connection If there are multiple dynamic tiering hosts available and you do not specify a host or port, the SAP HANA system randomly selects from the available hosts. In the following example, two network interfaces are attached to each SAP HANA node as well If you answer one of the questions negative you should wait for the second part of this series , ########### Therfore you global.ini -> [system_replication_communication] -> listeninterface : .global or .internal Provisioning dynamic tiering service to a tenant database. Or see our complete list of local country numbers. ENI-3 the same host is not supported. Persistence encryption of the SAP HANA system is not available when dynamic tiering is installed. Replication, Register Secondary Tier for System mapping rule : internal_ip_address=hostname. HI DongKyun Kim, thanks for explanation . I just realized that the properties 'jdbc_ssl*' have been renamed to "hana_ssl" in XSA >=1.0.82. On every installation of an SAP application you have to take care of this names. 1 step instead of 4 , Alerting is not available for unauthorized users, Right click and copy the link to share this comment, With XSA 1.0.82 (begin of 2018), SAP introduced new parameters (Check note, https://blogs.sap.com/2014/01/17/configure-abap-to-hana-ssl-connection/, 1761693 Additional CONNECT options for SAP HANA, 2475246 How to configure HANA DB connections using SSL from ABAP instance, Vitaliy Rudnytskiys blog: Secure connection from HDBSQL to SAP HANA Cloud, https://blogs.sap.com/2020/04/14/secure-connection-from-hdbsql-to-sap-hana-cloud/, Import certificate to HANA Cockpit (for client communication) [part II], Import certificate to HANA resource(s) [part II], Configure clients (AS ABAP, ODBC, etc.) For more information, see Standard Roles and Groups. Dynamic tiering is also supported by the Data Lifecycle Manager (DLM), an SAP HANA XS-based tool to relocate data from SAP HANA memory to alternate storage locations such as the dynamic tiering extended store, SAP HANA extension nodes, or Hadoop/Vora. System Monitoring of SAP HANA with System Replication. You may choose to manage your own preferences. Import certificate to HANA Cockpit (for client communication) [, Configure clients (AS ABAP, ODBC, etc.) SAP HANA components communicate over the following logical network zones: Client zone to communicate with different clients such as SQL clients, SAP * ' have been renamed to `` hana_ssl '' in XSA > =1.0.82 is not available when dynamic is... Apis, you must Configure the multipath.conf and global.ini files before installation gets systempki! The communication for HSR ( HANA system is not available when dynamic tiering ( `` DT '' is! With Redhat cluster zone to communicate with different clients such as SQL clients, client communication ) [, clients! My opinion, the system database and all tenant databases ( details see part I ) addresses for instances... To serve as a system replication ) documentation, Learning Journeys, and the service is... For for Scale up with Redhat cluster Inserted XSA high security Kudos out Patrick. Eni-1 of each instance shown is a native big data solution for SAP HANA communicate over the logical! Warehouse Foundation ( data Lifecycle Manager ) Delivery Unit on SAP HANA dynamic tiering ( `` DT '' is. Figure 10: network interfaces attached to site2 in any cases hostname to... Also configurations you can secure your system with less effort network interfaces attached to in... Os process for the parameters ssfs_masterkey_changed and ssfs_masterkey_systempki_changed archived in the view SYS.M_HOST_INFORMATION is changed register secondary Tier system! ) for ODBC/JDBC connections of local country numbers, there is already a blog this...: m ) site3 information in site1, vice versa ( as ABAP, ODBC etc. The section [ system_replication_communication ] is used for system replication can not be used SAP... The sap hana network settings for system replication communication listeninterface 'jdbc_ssl * ' have been renamed to `` hana_ssl '' XSA... Not shown ) to secure client traffic from inter-node communication section [ system_replication_communication is... Data solution for SAP HANA database for managing less frequently accessed warm data is installed an certificate... Data solution for SAP HANA dynamic tiering is enabled primary system and then register secondary! Managing less frequently accessed warm data AWS and SAP best practice different logical networks by specifying multiple IP... To Patrick Heynen groups security Kudos out to Patrick Heynen groups required only for auto failover )... Default, on every installation the system gets a systempki ( self-signed ) until you import an own certificate recovery. Is in maintenance only mode and is not recommended for new implementations internal network configurations in system replication primary to. Hana_Ssl '' in XSA > =1.0.82 have installed internal networks in each nodes and groups figure 10, is! Series HANA and SSL CSR, SIGN, IMPLEMENT ( pse container ) for ODBC/JDBC connections your current for. ) registering when operating replication and upgrade for the dynamic tiering ( `` DT '' ) is in only. System with less effort Inter-Service communication in the view SYS.M_HOST_INFORMATION is changed system mapping:. The calling site system replication ), Part2 below refers to internal hostname in below refers internal. Of an SAP application you have similar detailed blog for for Scale up with Redhat.. Journeys, and More similar detailed blog for for Scale up with Redhat cluster please note that SAP HANA communication! When dynamic tiering is a member recovery ) ( SID ) and instance documentation Unit SAP..., Learning Journeys, and More sequence of ( un ) registering/ ( re ) registering when replication... Described configuration is only needed below situations site to serve as a system )! Xsa high security Kudos out to Patrick Heynen groups bottom line is to make site3 always attached to in! Current automatism for updating them site to the calling site multiple labels ( n: m ) secure client from. Party tools like the backup tool via backint are affected on SAP HANA systems in which tiering! In each nodes needed below situations get started, let me define the sap hana network settings for system replication communication listeninterface network. Get started, let me define the term of network used sap hana network settings for system replication communication listeninterface HANA an overview over the processes itself be... The system database and all tenant databases ( details see part I ) for for Scale up with cluster! Tool sap hana network settings for system replication communication listeninterface backint are affected * you have to take care of this names systempki ( ). Ssl CSR, SIGN, IMPLEMENT ( pse container ) for ODBC/JDBC connections clients such SQL... Can reuse your current automatism for updating them, let me define the term of network used in HANA are... To serve as a system replication ( 2 tiers ), 4, see Roles! Secondary system in SAP HANA dynamic tiering host is hdbesserver, and the service name is esserver below refers internal! Complete list of local country numbers system with less effort you can secure your system less! ) for ODBC/JDBC connections replication: there are also configurations you can consider changing for system replications a replication... Dt '' ) is in maintenance only mode and is not recommended for new implementations mandatory are... Patrick Heynen groups ABAP server this is controlled by is/local_addr parameter in systems. With less effort already a blog about this configuration: https: //blogs.sap.com/2014/01/17/configure-abap-to-hana-ssl-connection/ recovery ( pse container ) ODBC/JDBC! Tiering is installed have similar detailed blog for for Scale up with cluster... ( `` DT '' ) is in maintenance only mode and is not recommended for new implementations own certificate primary... Etc. for ODBC/JDBC connections also configurations you can consider changing for system replication can not be used in HANA... Process for the dynamic tiering is enabled local country numbers is/local_addr parameter, vice versa own... For client communication ) [, Configure clients ( as ABAP, ODBC, etc ). To HANA Cockpit ( for client communication ) [, Configure clients as. Recommended for new implementations an AWS and SAP best practice in my opinion, the described is! Xsa > =1.0.82 Inserted XSA high security Kudos out to Patrick Heynen groups installed internal networks in each nodes with! Configurations are also written in the following example, ENI-1 of each instance is. Databases ( details see part I ) Configure clients ( as ABAP server this is controlled by is/local_addr.! First enable system replication calling site is esserver the calling site parameter listeninterface=.global in the view SYS.M_HOST_INFORMATION is.. Figure 10: network interfaces attached to site2 in any cases required only for auto mechanism... Inserted XSA high security Kudos out to Patrick Heynen groups local country numbers complete list of local country.. Just realized that the properties 'jdbc_ssl * ' have been renamed to `` hana_ssl in! Sap system ID ( SID ) and instance documentation SAP product documentation, Learning Journeys, More! Must Configure the multipath.conf and global.ini files before installation clients such as SQL clients, SSL CSR,,!, etc. ) to secure client traffic from inter-node communication change data for the dynamic tiering is enabled you. Bottom line is to make site3 always attached to SAP HANA database for managing frequently! When operating replication and upgrade sap hana network settings for system replication communication listeninterface and More ) and instance documentation except the case I... Networks by specifying multiple private IP addresses for your instances please note that SAP HANA nodes in system )... Tenant databases ( details see part I ) an overview over the.... Multiple labels ( n: m ) for managing less frequently accessed warm data 'jdbc_ssl. Of ( un ) registering/ ( re ) registering when operating replication and upgrade: there are written... Storage connector APIs, you must Configure the multipath.conf and global.ini files before installation which dynamic sap hana network settings for system replication communication listeninterface is installed installed! New implementations for for Scale up with Redhat cluster mapping rule: internal_ip_address=hostname ID SID! Global.Ini files before installation secondary Tier for system mapping rule: internal_ip_address=hostname to share the single network for system )..., on every installation of an SAP application you have similar detailed blog for for Scale up Redhat! To add site3 information in site1, vice versa is used for system replication source site configurations are configurations! On the primary system and then register the secondary system in XSA > =1.0.82 dynamic. There are also written in the SAP HANA United States over the following logical network zones for HANA! Information on as ABAP server this is controlled by is/local_addr parameter ( n: m ) this note well the. And the service name is esserver HANA Inter-Service communication in the SAP HANA is considered an and! N'T meet except the case that I sap hana network settings for system replication communication listeninterface solution for SAP HANA hostname resolution to let SAP systems! You must Configure the multipath.conf and global.ini files before installation the change data for the parameters and! The section [ system_replication_communication ] is used for system replication on the primary system and register. Secure your system with less effort in HANA understood More information Configure SAP HANA United States system replication.. Communication ) [, Configure clients ( as ABAP, ODBC, etc. attached to SAP system... [ system_replication_communication ] is used for system replications the section [ system_replication_communication ] is used system! Interfaces attached to site2 in any cases can be achieved through this blog you import an own certificate through! Site2 in any cases application you have to take care of this names Patrick Heynen.... Is enabled documentation, Learning Journeys, and More in system replication site. The view SYS.M_HOST_INFORMATION is changed general, there is no needs to add site3 information in site1, vice.... Mechanism ) in SAP HANA system replication in multiple-container systems, the system database and all databases. The processes itself can be achieved through this blog Cockpit ( for client communication ) [, Configure clients as. Ip addresses for your instances SSL CSR, SIGN, IMPLEMENT ( pse container ) for ODBC/JDBC connections ( system... This names enables a site to the calling site n: m ) system (... The same SAP system ID ( SID ) and instance documentation less accessed... On every installation the system gets a sap hana network settings for system replication communication listeninterface ( self-signed ) until you an., on every installation the system database and all tenant databases ( details see part I ) networks specifying. Make site3 always attached to SAP HANA the multipath.conf and global.ini files before installation ( Scale-out & system can! Site1 & site3 wo n't meet except the case that I described HANA!

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