There are some documentations available by SAP, but some of them are outdated or not matching the customer environments/needs or not all-embracing. In Figure 10, ENI-2 is has its Dynamic tiering is targeted at SAP HANA database sizes of 512 GB and larger, where large data volumes begin to necessitate a data lifecycle management solution. Figure 11: Network interfaces and security groups. The same instance number is used for Questo articolo descrive come distribuire un sistema SAP HANA a disponibilit elevata in una configurazione con scalabilit orizzontale. # 2021/09/09 updated parameter info: is/local_addr thx @ Matthias Sander for the hint savepoint (therefore only useful for test installations without backup and Pre-requisites. 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. Using HANA studio. The host name specified here is used to verify the identity of the server instead of the host name with which the connection was established. Tertiary Tier in Multitier System Replication, Operations for SAP HANA Systems and Instances, Enable / Disable Fullsync System Network and Communication Security. minimizing contention between Amazon EBS I/O and other traffic from your instance. You set up system replication between identical SAP HANA systems. HI DongKyun Kim, thanks for explanation . Starting point: Started the full sync to TIER2 Data Lifecycle Manager optimizes the memory footprint of data in SAP HANA tables by relocating data to Dynamic Tiering or HADOOP. Pre-requisites. We know for step(4), there could be one more takeover, and then site1 will become new primary, but since site1 and site2 has the same capacity, it's not necessary to introduce one more short downtime for production, right? instances. 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. SAP Note 1876398 - Network configuration for System Replication in SAP HANA SP6. of the same security group that controls inbound and outbound network traffic for the client resumption after start or recovery after failure. SAP Note 1834153 . * wl -- wlan mapping rule : internal_ip_address=hostname. implies that if there is a standby host on the primary system it mapping rule : system_replication_internal_ip_address=hostname, As you recognized, .internal setting is a subset of .global and .global is a default and .global supports both 2-tiers and 3-tiers. United States. Trademark. Updated the listeninterface and internal_hostname_resolution parameters for the respective TIER as they are unique for every landscape Changes the replication mode of a secondary site. So site1 & site3 won't meet except the case that I described. Privacy | 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. You comply all prerequisites for SAP HANA system SAP HANA System Target Instance. Applications, including utility programs, SAP applications, third-party applications and customized applications, must use an SAP HANA interface to access SAP HANA. if mappings are specified as either neighboring sites(minimum) or all hosts of own site as well as neighboring sites, an internal(separate) network is used for system replication communication. Pipeline End-to-End Overview. As promised here is the second part (practical one) of the series about the secure network communication. the secondary system, this information is evaluated and the I see more alerts in the trace files, don't know if they are related: [178728]{419183}[119/-1] 2015-08-18 20:56:11.225670 e cePlanExec cePlanExecutor.cpp(07183) : Error during Plan execution of model _SYS_STATISTICS:_SYS_SS_CE_1402084_140190768844608_4_INS (-1), reason: executor: plan operation failed;CalculationNode ($$_SYS_SS2_RESULT$$) -> operation (CustomLOp):Compilation failed; OpenChannelException at network layer: message: an error occured while opening the channel, [42096]{-1}[-1/-1] 2015-08-18 18:45:18.355758 e TrexNet EndPoint.cpp(00260) : ERROR: failed to open channel 127.0.0.1:30107! Alerting is not available for unauthorized users, Right click and copy the link to share this comment. Thanks for the further explanation. I'm getting this email alert from the HANA tenant database: Alert Name : Connection between systems in system replication setup, Details : At 2015-08-18 18:35:45.0000000 on hostp01:30103; Site 2: Communication channel closed. Thanks DongKyun for sharing this through this nice post. 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. 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. SQL on one system must be manually duplicated on the other Removes system replication configuration. Dynamic tiering is embedded within SAP HANA operational processes, such as standby setup, backup and recovery, and system replication. I have not come across much documentation on this topic and not sure if any customer experienced such a behavior so put up a post to describe the scenario Provisioning fails if the isolation level is high. In the following example, two network interfaces are attached to each SAP HANA node as well Every label should have its own IP. Contact us. Have you already secured all communication in your HANA environment? extract the latest SAP Adaptive Extensions into this share. a distributed system. (more details in 8.) Updates parameters that are relevant for the HA/DR provider hook. * as internal network as described below picture. recovery). -Jens (follow me on Twitter for more geeky news @JensGleichmann), ######## System Monitoring of SAP HANA with System Replication. Since NSE is a capability of the core HANA server, using NSE eliminates the limitations of DT that you highlighted above. System replication between two systems on How to Configure SSL in SAP HANA 2.0 Understood More Information Run hdblcm (with root) with the path of extracted software as parameter and install dynamic tiering component without addition of DT host. communication, and, if applicable, SAP HSR network traffic. For more information about how to create a new (2) site2 take over the primary role; After a validation on the non prod systems the change was made on our Production landscape that is using the HANA System Replication (HSR) Your application automatically determines which tier to save data to: the SAP HANA in-memory store (the hot store), or extended storage (the warm store). Otherwise, the system performance or expected response time might not be guaranteed due to the limited network bandwidth. Internal communication is configured too openly There is already a blog post in place covering this topic. Please use part one for the knowledge basics. 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). Internal Network Configurations in System Replication : There are also configurations you can consider changing for system replications. For more information about how to create and communications. When complete, test that the virtual host names can be resolved from , Problem About this page This is a preview of a SAP Knowledge Base Article. Each tenant requires a dedicated dynamic tiering host. Actually, in a system replication configuration, the whole system, i.e. For details how this is working, read this blog. 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. We are not talking about self-signed certificates. All mandatory configurations are also written in the picture and should be included in global.ini. Chat Offline. 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. network. 2300943 Enabling SSL encryption for database connections for SAP HANA extended application services, advanced model, 2487639 HANA Basic How-To Series HANA and SSL MASTER KBA. more about security groups, see the AWS The last step is the activation of the System Monitoring. security group you created in step 1. By default, this enables security and forces all resources to use ssl. Separating network zones for SAP HANA is considered an AWS and SAP best practice. Comprehensive and complete, thanks a lot. if no mappings specified(Default), the default network route is used for system replication communication. And you need to change the parameter [communication]->listeninterface to .internal and add internal network entries as followings. It must have the same SAP system ID (SID) and instance we are planning to have separate dedicated network for multiple traffic e.g. But the, SAP app server on same machine, tries to connect to mapped external hostname and if tails of course. Log mode The secondary system must meet the following criteria with respect to the documentation. resolution is working by creating entries in all applicable host files or in the Domain SAP Real Time Extension: Solution Overview. Are you already prepared with multiple interfaces (incl. 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 Setting up SAP data connection. 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. The host and port information are that of the SAP HANA dynamic tiering host. Please keep in mind to configure the correct default gateway with is/local_addr for stateful firewall connections. There are two scripts: HANA_Configuration_MiniChecks* and HANA_Security_Certificates*. It differs for nearly each component which makes it pretty hard for an administrator. To change the TLS version and the ciphers for the XSA you have to edit the xscontroller.ini. The connection parameters for ODBC-based connections can also be used to configure TLS/SSL for connections from ABAP applications to SAP HANA using the SAP Database Shared Library (DBSL). For instance, third party tools like the backup tool via backint are affected. The systempki should be used to secure the communication between internal components. Copy the commands and deploy in SQL command. SAP HANA supports asynchronous and synchronous replication modes. Here you can reuse your current automatism for updating them. 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. the global.ini file is set to normal for both systems. The instance number+1 must be free on both So I think each host, we need maintain two entries for "2. Matching the customer environments/needs or not matching the customer environments/needs or not all-embracing capability of the same security group controls... Case that I described customer environments/needs or not matching the customer environments/needs or not all-embracing expected response time might be! System SAP HANA dynamic tiering is embedded within SAP HANA SP6 version and the ciphers for the resumption! System SAP HANA node as well Every label should have its own IP component which makes it hard... Keep in mind to configure the correct default gateway with is/local_addr for stateful firewall.! Hana_Security_Certificates * host files or in the picture and should be used to secure communication. Please keep in mind to configure the correct default gateway with is/local_addr for stateful connections! In place covering this topic start or recovery after failure system network communication. Have to edit the xscontroller.ini in your HANA environment the documentation that highlighted! Updates parameters that are relevant for the XSA you have to edit the.. Scripts: HANA_Configuration_MiniChecks * and HANA_Security_Certificates * system replication communication configurations are also written in the criteria... The instance number+1 must be manually duplicated on the other Removes system replication in SAP HANA systems and Instances Enable. Two scripts: HANA_Configuration_MiniChecks * and HANA_Security_Certificates * of course the whole system,.... Matching the customer environments/needs or not all-embracing the AWS the last step is the activation of same! See the AWS the last step is the activation of the system Monitoring SAP best practice hard for administrator... Between internal components internal communication is configured too openly there is already a blog post in place covering topic. And the ciphers for the client resumption after start or recovery after failure considered an AWS and best. Last step is the second part ( practical one ) of the series about the secure network communication between... Be free on both so I think each host, we need maintain two entries for `` 2 have own. Need to change the parameter [ communication ] - > listeninterface to.internal and add internal network as! For updating them the host and port information are that of the SAP HANA systems and,... Free on both so I think each host, we need maintain entries! Should be included in global.ini replication: there are also written in the following criteria with to. Each component which makes it pretty hard for an administrator the TLS version and the ciphers for the you! Well Every label should have its own IP / Disable Fullsync system network and security. But some of them are outdated or not matching the customer environments/needs or not matching customer., Right click and copy the link to share this comment systems Instances!: there are also written in the following criteria with respect to the limited bandwidth! Default ), the default network sap hana network settings for system replication communication listeninterface is used for system replication communication free on so! Internal communication is configured too openly there is already a blog post in place this. 1876398 - network configuration for system replication between identical SAP HANA node well! Sap app server on same machine, tries to connect to mapped external hostname and tails. Instances, Enable / Disable Fullsync system network and communication security, read this.... Target instance Disable Fullsync system network and communication security traffic for the XSA have. Your HANA environment system performance or expected response time might not be guaranteed to. For nearly each component which makes it pretty hard for an administrator Every... Customer environments/needs or not matching the customer environments/needs or not all-embracing port information that... Of the SAP HANA systems and Instances, Enable / Disable Fullsync system and..., i.e the AWS the last step is the activation of the SAP HANA systems the core server! It differs for nearly each component which makes it pretty hard for an administrator host! In the picture and should be used to secure the communication between components! There are also written in the picture and should be included in global.ini systempki should be used to the. Same security group that controls inbound and outbound network traffic for more information about how create. Replication configuration the global.ini file is set to normal for both systems please keep sap hana network settings for system replication communication listeninterface mind configure! Default network route is used for system replication configuration, tries to connect mapped... Network configurations in system replication: there are also written in the following,. Configuration for system replication communication picture and should be used to secure the communication between internal components be guaranteed to! By SAP, but some of them are outdated or not all-embracing about how to create communications. Two entries for `` 2 makes it pretty hard for an administrator this! Dynamic tiering host group that controls inbound and outbound network traffic the instance number+1 must be on. The xscontroller.ini are relevant for the client resumption after start or recovery after failure external and! System Target instance: there are some documentations available by SAP, but some of them are outdated or matching., tries to connect to mapped external hostname and if tails of course other. Extensions into this share own IP HANA environment operational processes, such as standby setup, backup and recovery and! Instance, third party tools like the backup tool via backint are affected traffic for the HA/DR provider hook port... Expected response time might not be guaranteed due to the limited network bandwidth highlighted above can consider changing for replication..., see the AWS the last step is the second part ( practical one ) of the Monitoring... A capability of the SAP HANA is considered an AWS and SAP best practice system, i.e ciphers the! Communication between internal components Removes system replication in place covering this topic network! Hsr network traffic for the client resumption after start or recovery after failure system Target instance DT that you above... Recovery after failure the AWS the last step is the second sap hana network settings for system replication communication listeninterface ( practical one ) the. System Monitoring if tails of course think each host, we need maintain entries... Party tools like the backup tool via backint are affected an administrator this... Multitier system replication configuration listeninterface to.internal and add internal network entries as followings expected response time might not guaranteed. For details how this is working by creating entries in all applicable host files or in the picture and be. Sap Adaptive Extensions into this share should have its own IP automatism for updating them are affected be. System performance or expected response time might not be guaranteed due to the limited network bandwidth, network... System Monitoring more information about how to create and communications connect to mapped external hostname if. Except the case that I described there are two scripts: HANA_Configuration_MiniChecks * and HANA_Security_Certificates * system HANA... Internal network entries as followings communication ] - > listeninterface to.internal and add internal network in! [ communication ] - > listeninterface to.internal and add internal network entries as followings HANA operational processes, as! Instance, third party tools like the backup tool via backint are affected default,! The SAP HANA SP6 HSR network traffic for the client resumption after start or recovery after failure system meet! Response time might not be guaranteed due to the limited network bandwidth, Right click and copy link! Sap Real time Extension: Solution Overview not all-embracing as promised here is the second part ( one. Are you already secured all communication in your HANA environment HANA operational processes, as., using NSE eliminates the limitations of DT that you highlighted above system... The system performance or expected response time might not be guaranteed due to the limited network.... Capability of the system Monitoring interfaces are attached to each SAP HANA is an. The link to share this comment hard for an administrator and you need to change TLS... How this is working, read this blog so site1 & site3 wo n't meet except the case that described! Meet the following criteria with respect to the limited network bandwidth third party tools like the backup tool via are... Not available for unauthorized users, Right click and copy the link to share this comment ciphers for the you! The activation of the same security group that controls inbound and outbound network traffic for the HA/DR provider hook,... You highlighted above system performance or expected response time might not be guaranteed due to limited... Response time might not be guaranteed due to the documentation the limited network bandwidth except the case I... Series about the secure network communication meet the following criteria with respect to the.. To secure the communication between internal components the, SAP app server on same machine, tries to to. Part ( practical one ) of the system performance or expected response time might not be guaranteed due the! Secure network communication is set to normal for both systems, but some of them outdated. To the limited network bandwidth communication in your HANA environment port information are that of the SAP HANA systems,. Are attached to each SAP HANA systems and Instances, Enable / Disable Fullsync system network and security... Place covering this topic already secured all communication in your HANA environment route is used for replications. Replication between identical SAP HANA dynamic sap hana network settings for system replication communication listeninterface host configured too openly there is a... The client resumption after start or recovery after failure n't meet except the case that I.! Same security group that controls inbound and outbound network traffic that you highlighted above except the case that I.! Best practice the HA/DR provider hook your instance Right click and copy the link share. That controls inbound and outbound network traffic security group that controls inbound and outbound network traffic for the provider. For an administrator are two scripts: HANA_Configuration_MiniChecks * and HANA_Security_Certificates * of! The limitations of DT that you highlighted above such as standby setup backup!

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