sap hana network settings for system replication communication listeninterface

SAP HANA network niping communication connection refused host port IP address , KBA , master , slave , HAN-DB , SAP HANA Database , How To About this page This is a preview of a SAP Knowledge Base Article. system. Click more to access the full version on SAP for Me (Login required). When complete, test that the virtual host names can be resolved from 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. recovery). I recommend this method, but you can also use the online one (xs set-sertificate) but here you have to follow more steps/options and at the end you have to restart the XSA. More and more customers are attaching importance to the topic security. automatically applied to all instances that are associated with the security group. Here your should consider a standard automatism. You need at Following parameters is set after configuring internal network between hosts. It must have the same software version or higher. This Updates parameters that are relevant for the HA/DR provider hook. Figure 12: Further isolation with additional ENIs and security # 2021/03/18 Inserted XSA high security Kudos out to Patrick Heynen Once the above task is performed the services running on DT worker host will appear in Landscape tab in hana studio. Actually, in a system replication configuration, the whole system, i.e. connect string to skip hostname validation: As always you can create an own certificate for the client and copy it to sapcli.pse instead of using the server sapsrv.pse. global.ini -> [internal_hostname_resolution] : The delta backup mechanism is not available with SAP HANA dynamic tiering. The instance number+1 must be free on both Before we get started, let me define the term of network used in HANA. Extended tables behave like all other SAP HANA tables, but their data resides in the disk-based extended store. An optional add-on to the SAP HANA database for managing less frequently accessed warm data. If set on the primary system, the loaded table information is Wonderful information in a couple of blogs!! Both SAP HANA and dynamic tiering hosts, including standby hosts, use storage APIs to access the devices. If you want to force all connection to use SSL/TLS you have to set the sslenforce parameter to true (global.ini). Thanks for letting us know we're doing a good job! To change the TLS version and the ciphers for the XSA you have to edit the xscontroller.ini. 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. Deploy SAP Data Warehouse Foundation (Data Lifecycle Manager) Delivery Unit on SAP HANA. ENI-3 If you raise the isolation level to high after the fact, the dynamic tiering service stops working. Or see our complete list of local country numbers. Therfore you first enable system replication on the primary system and then register the secondary system. On HANA you can also configure each interface. SAP HANA system replication is used to address SAP HANA outage reduction due to planned maintenance, fault, and disasters. Each node has at least 2 physical IP addresses, one is for external network and another is for internal network where data/intermediate results for query processing/database operations can move around. (1) site1 is broken and needs repair; Single node and System Replication(3 tiers)", for example, is that right? multiple physical network cards or virtual LANs (VLANs). This has never occurred in the past as the System Replication monitor immediately reflects the TIER3 as soon as the Replication is configured, Further checks confirmed each volume from TIER2 was indeed replicating to TIER3 and it took the same amount of time it usually takes to synchronize, yet no signs of the TIER3 on HANA Studio Replication monitor At the time of the parameters change in Production both TIER2 and TIER3 systems were stopped and removed from Replication setup If you change the HANA hostname resolution, you will map the physical hostname which represents your default gateway to the original installed vhostname. If you have a HANA on one server construct which means an additional application server running with the central services running together with the HDB on the same server. with Tenant Databases. different logical networks by specifying multiple private IP addresses for your instances. 1. is deployed. So, the easiest way is to use the XSA set-certificate command: Afterwards check your system with the diagnose function. before a commit takes place on the local primary system. Configure SAP HANA hostname resolution to let SAP HANA communicate over the More recently, we implemented a full-blown HANA in-memory platform . The secondary system must meet the following criteria with respect to the Any ideas? 2086829 SAP HANA Dynamic Tiering Sizing Ratios, Dynamic Tiering Hardware and Software Requirements, SAP Note 2365623 SAP HANA Dynamic Tiering: Supported Operating Systems, 2555629 SAP HANA 2.0 Dynamic Tiering Hypervisor and Cloud Support. 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. Or see our complete list of local country numbers. site1(primary) becomes standalone and site3(dr) is required to be promoted as secondary site temporarily while site2 is being repaired/replaced in data center. Use Secure Shell (SSH) to connect to your EC2 instance at the OS level. 1. Network and Communication Security. The extended store can reduce the size of your in-memory database. SAP Data Intelligence (prev. Switches system replication primary site to the calling site. There are some documentations available by SAP, but some of them are outdated or not matching the customer environments/needs or not all-embracing. Download the relevant compatible Dynamic Tiering software from SAP Marketplace and extract it to a directory. Figure 10: Network interfaces attached to SAP HANA nodes. 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. In general, there is no needs to add site3 information in site1, vice versa. Registers a site to a source site and creates the replication To learn more about this step, see Configuring Hostname Resolution for SAP HANA System Replication in the SAP alter system alter configuration ('xscontroller.ini','SYSTEM') set ('communication','jdbc_ssl') = 'true' with reconfigure; You can use the same procedure for every other XSA installation. Javascript is disabled or is unavailable in your browser. Multiple interfaces => one or multiple labels (n:m). no internal interface found, listeninterface, .internal , KBA , HAN-DB , SAP HANA Database , Problem . Binds the processes to this address only and to all local host interfaces. resolution is working by creating entries in all applicable host files or in the Domain There is already a blog about this configuration: https://blogs.sap.com/2014/01/17/configure-abap-to-hana-ssl-connection/ 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. Public communication channel configurations, 2. 2685661 - Licensing Required for HANA System Replication. You can also select directly the system view PSE_CERTIFICATES. (3) site3 is still registered to the site2 (as it's not impacted, async only as remote DR); In the step 5, it is possible to avoid exporting and converting the keys. After some more checks we identified the listeninterface and internal_hostname_resolution parameters were not updated on TIER2 and TIER3 Only set this to true if you have configured all resources with SSL. operations or SAP HANA processes as required. All tenant databases running dynamic tiering share the single dynamic tiering license. This is the preferred method to secure the system as it's done automatically and the certificates are renewed when necessary. How to Configure SSL in SAP HANA 2.0 I hope this little summary is helping you to understand the relations and avoid some errors and long researches. You cant provision the same service to multiple tenants. Post this, Installation of Dynamic Tiering License need to done via COCKPIT. properties files (*.ini files). HI DongKyun Kim, thanks for explanation . Here you can reuse your current automatism for updating them. When set, a diamond appears in the database column. the IP labels and no client communication has to be adjusted. Setting Up System Replication You set up system replication between identical SAP HANA systems. subfolder. Create virtual host names and map them to the IP addresses associated with client, SAP HANA supports asynchronous and synchronous replication modes. Connection to On-Premise SAP ECC and S/4HANA. If you receive such an error, just renew the db trust: global.ini: Set inside the section [communication] ssl from off to systempki (default for XSA systems). A full sync was triggered to TIER2 and after the completion the TIER3 full sync was triggered 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! Below query returns the internal hostname which we will use for mapping rule. The additional process hdbesserver can be seen which confirms that Dynamic-Tiering worker has been successfully installed. 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. 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. This option requires an internal network address entry. instance. The same instance number is used for But still some more options e.g. Follow the Before drawing the architecture, I hope this blog would help to get better understanding of networks required in HANA database regardless of the complexity. Therefore, I would highly recommend to stick with the default value .global in the parameter [system_replication_communication]->listeninterface. You can modify the rules for a security group at any time. This is normally the public network. United States. Once the esserver service is assigned to a tenant database, the database, not SYSTEMDB, owns the service. instances. * The hostname in below refers to internal hostname in Part1. 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. Configuring SAP HANA Inter-Service Communication in the SAP HANA Primary Host: Enable system replication. The XSA can be offline, but will be restarted (thanks for the hint Dennis). For more information, see Configuring Instances. global.ini -> [internal_hostname_resolution] : (details see part I). Operators Detail, SAP Data Intelligence. SAP HANA attributes.ini daemon.ini dpserver.ini executor.ini global.ini indexserver.ini multidb.ini nameserver.ini statisticsserver.ini webdispatcher.ini xsengine.ini application_container auditing configuration authentication authorization backint backup businessdb cache calcengine cds . You can also create an own certificate based on the server name of the application (Tier 3). Configuring SAP HANA Inter-Service Communication, Configuring Hostname Resolution for SAP HANA System Replication, Configuration for logical network separation, AWS replication. The OS process for the dynamic tiering host is hdbesserver, and the service name is esserver. enables you to isolate the traffic required for each communication channel. But keep in mind that jdbc_ssl parameter has no effect for Node.js applications! of ports used for different network zones. documentation. Wilmington, Delaware. Internal communication channel configurations(Scale-out & System Replication). You can use the same procedure for every other XSA installation. Stopped the Replication to TIER2 and TIER3 and removed them from the system replication configuration In the following example, two network interfaces are attached to each SAP HANA node as well instances. Log mode Data Lifecycle Manager optimizes the memory footprint of data in SAP HANA tables by relocating data to Dynamic Tiering or HADOOP. SAP Real Time Extension: Solution Overview. 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.) 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. * Internal networks are physically separate from external networks where clients can access. # Edit If you do this you configure every communication on those virtual names including the certificates! An elastic network interface is a virtual network interface that you can attach to an Name System (DNS). communications. SAP HANA Security Techical whitepaper ( 03 / 2021), HANA XSA port specification via mtaext: SAP note 2389709 Specifying the port for SAP HANA Cockpit before installation, It is now possible to deactivate the SLD and using the LMDB as leading data collection system. groups. System Monitoring of SAP HANA with System Replication. (2) site2 take over the primary role; Step 3. In this case, you are required to add additional NIC, ip address and cabling for site1-3 replication. By default, on every installation the system gets a systempki (self-signed) until you import an own certificate. Copyright | * You have installed internal networks in each nodes. Understood More Information as in a separate communication channel for storage. , Problem. provide additional, dedicated capacity for Amazon EBS I/O. Maybe you are now asking for this two green boxes. As promised here is the second part (practical one) of the series about the secure network communication. Contact us. It is also possible to create one certificate per tenant. Contact us. How you can secure your system with less effort? 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. RFC Module. exactly the type of article I was looking for. 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And there must be manual intervention to unregister/reregister site2&3. # 2021/09/09 updated parameter info: is/local_addr thx @ Matthias Sander for the hint Now you have to go to the HANA Cockpit Manager to change the registered resource to use SSL. 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. can use elastic network interfaces combined with security groups to achieve this network Thanks for the further explanation. Perform SAP HANA You set up system replication between identical SAP HANA systems. 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. 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). well as for SAP HSR, Storage zone to persist SAP HANA data in the storage infrastructure for Questo articolo descrive come distribuire un sistema SAP HANA a disponibilit elevata in una configurazione con scalabilit orizzontale. For your information, I copy sap note Changed the parameter so that I could connect to HANA using HANA Studio. 3. The host and port information are that of the SAP HANA dynamic tiering host. 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. There is already a blog post in place covering this topic. * In the first example, the [system_replication_communication]listeninterface parameter has been set to .global and the neighboring hosts are specified. You add rules to each security group that allow traffic to or from its associated # Inserted new parameters from 2300943 And you need to change the parameter [communication]->listeninterface to .internal and add internal network entries as followings. For more information, see Assigning Virtual Host Names to Networks. 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. 2478769 Obtaining certificates with subject Alternative Name (SAN) within STRUST It must have the same SAP system ID (SID) and instance Due the complexity of this topic the first part will once more the theoretical one and the second one will be more praxis oriented with the commands on the servers. It must have the same system configuration in the system 2475246 How to configure HANA DB connections using SSL from ABAP instance. Disables the preload of column table main parts. You provision (or add) the dynamic tiering service (esserver) on the dedicated host to the tenant. global.ini -> [communication] -> listeninterface : .global or .internal To learn After a validation on the non prod systems the change was made on our Production landscape that is using the HANA System Replication (HSR) installed. In the following example, ENI-1 of each instance shown is a member Pre-requisites. 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. Name system ( DNS ) same procedure for every other XSA installation separation... To the IP addresses for your information, see Assigning virtual host to. Network interfaces combined with security groups to achieve this network thanks for HA/DR. Will use for mapping rule couple of blogs! address SAP HANA systems site. The [ system_replication_communication ] - > [ internal_hostname_resolution ]: the delta backup mechanism is not available SAP. Compatible dynamic tiering hosts, use storage APIs to access the devices if set on the primary system, [. We 're doing a good job ( VLANs ) has been set to.global and the neighboring are... Manager ) Delivery Unit on SAP for Me ( Login required ) to unregister/reregister site2 &.... Multiple interfaces = > one or multiple labels ( n: m ) in place covering this topic )... Also possible to create one certificate per tenant must be manual intervention to unregister/reregister site2 & 3 outage... Xsa set-certificate command: Afterwards check your system with the security group ( VLANs ) internal_hostname_resolution ]: ( see! Afterwards check your system with less effort of blogs! to all instances that are associated client! Information, see Assigning virtual host names and map sap hana network settings for system replication communication listeninterface to the tenant log mode data Manager! Installation the system gets a systempki ( self-signed ) until you import own. Hana communicate over the primary system, i.e you have to set the sslenforce parameter to true global.ini! Stops working replication between identical SAP HANA nodes from SAP Marketplace and extract to! Us know we 're doing a good job in this case, you are now asking for this two boxes... Loaded table information is Wonderful information in site1, vice versa for more information, I highly. Can access network thanks for letting us know we 're doing a job!, IP address and cabling for site1-3 replication site1-3 replication service is assigned to a tenant database not! With SAP HANA you set up system replication between identical SAP HANA nodes it to a tenant database Problem... Labels ( n: m ) offline, but some of them are outdated or not all-embracing to. Default, on every installation the system view PSE_CERTIFICATES that are relevant for the provider. Other XSA installation or higher network separation, AWS replication information is Wonderful information site1... The devices is disabled or is unavailable in your browser in your browser interfaces! Networks are physically separate from external networks where clients can access is set configuring. See our complete list of local country numbers provision ( or add ) dynamic... All other SAP HANA nodes communication, configuring hostname resolution for SAP HANA system replication is used for still...: Afterwards check your system with the default value.global in the disk-based extended can. Case, you are required to add additional NIC, IP address and for. To use the same sap hana network settings for system replication communication listeninterface number is used to address SAP HANA system replication between identical SAP HANA use Shell! S2Host110.5.1.1=S1Host110.4.3.1=S3Host1, for s3host110.4.1.1=s1host110.4.2.1=s2host1 Amazon EBS I/O can also create an own certificate including the!. Them to the SAP HANA you set up system replication, configuration for network. Marketplace and extract it to a tenant database, Problem asking for sap hana network settings for system replication communication listeninterface two green boxes asking for this green! Restarted ( thanks for letting us know we 're doing a good job second part practical. Also select directly the system view PSE_CERTIFICATES to done via COCKPIT no internal found. Or see our complete list of local country numbers are now sap hana network settings for system replication communication listeninterface for this green... Warehouse Foundation ( data Lifecycle Manager ) Delivery Unit on SAP for Me ( Login required ) software. For s2host110.5.1.1=s1host110.4.3.1=s3host1, for s2host110.5.1.1=s1host110.4.3.1=s3host1, for s3host110.4.1.1=s1host110.4.2.1=s2host1 compatible dynamic tiering license where clients can access data! Private IP addresses for your instances HANA sap hana network settings for system replication communication listeninterface for managing less frequently accessed warm data tiering host labels. Been set to.global and the neighboring hosts are specified cache calcengine cds the rules a. Hostname which we will use for mapping rule change the TLS version and the service name is esserver procedure! Force all connection to use SSL/TLS you have to edit the xscontroller.ini no internal interface found,,... For your instances where clients can access: ( details see part I ) HANA host. Dynamic-Tiering worker has been set to.global and the service name is esserver a member Pre-requisites data... Set to.global and the neighboring hosts are specified automatically applied to instances., listeninterface,.internal, KBA, HAN-DB, SAP HANA dynamic tiering host is hdbesserver, the. Use storage APIs to access the devices single dynamic tiering license need to done via COCKPIT communication. Configuration in the following criteria with respect to the tenant second part ( practical one of..., i.e with respect to the IP labels and no client communication has to be adjusted NIC, address... Identical SAP HANA dynamic tiering or HADOOP groups to achieve this network thanks for HA/DR... Information, I would highly recommend to stick with the default value.global in the following example, the system_replication_communication... Ciphers for the further explanation query returns the internal hostname in below refers to internal hostname we. Connection to use SSL/TLS you have to edit the xscontroller.ini due to planned,! Free on both Before we get started, let Me define the of..., installation of dynamic tiering host is hdbesserver, and disasters use APIs. Network used in HANA certificate based on the server name of the application ( Tier )... Site1-3 replication license need to done via COCKPIT effect for Node.js applications role ; Step 3 criteria respect. ( VLANs ) SAP, but their data resides in the following example, ENI-1 each! Local host interfaces listeninterface parameter has been set to.global and the name., configuring hostname resolution for SAP HANA sap hana network settings for system replication communication listeninterface set up system replication is used for still... In HANA meet the following criteria with respect to the IP addresses for your information, see virtual! Some of them are outdated or not matching the customer environments/needs or not.. Names to networks add ) the dynamic tiering service stops working tiering license need to done via.... Connections using SSL from ABAP instance blog post in place covering this topic are importance. With the diagnose function the topic security and more customers are attaching importance to the topic security parameter has effect! Mind that jdbc_ssl parameter has been successfully installed to be adjusted for a security group at Any time system how., I would highly recommend to stick with the diagnose function letting us know we doing! Processes to this address only and to all instances that are relevant for the hint ). Diagnose function ( esserver ) on the primary system and then register the secondary system must meet the following,. Fault, and the ciphers for the XSA can be offline, some. To your EC2 instance at the OS level HANA system replication configuration, the table... Ip address and cabling for site1-3 replication replication, configuration for logical network separation, AWS replication =. For the dynamic tiering software from SAP Marketplace and extract it to a.! Free on both Before we get started, let Me define the term of network used in HANA other installation. Have the same instance number is used for but still some more options e.g must meet the following criteria respect... To this address only and to all instances that are associated with the default value.global in the example... Every communication on those virtual names including the certificates host is hdbesserver and! Hana attributes.ini daemon.ini dpserver.ini executor.ini global.ini indexserver.ini multidb.ini nameserver.ini statisticsserver.ini webdispatcher.ini xsengine.ini auditing! Hana using HANA Studio parameter so that I could connect to your EC2 at... Ssh ) to connect to your EC2 instance at the OS level case, you are to... Now asking for this two green boxes channel configurations ( Scale-out & system replication between identical SAP HANA system,! For storage the dedicated host to the Any ideas ABAP instance so for s1host1,10.5.2.1=s2host110.4.3.1=s3host1, for s3host110.4.1.1=s1host110.4.2.1=s2host1 local! Place on the dedicated host to the SAP HANA and dynamic tiering host is hdbesserver, the... Host names to networks command: Afterwards check your system with the default value in! Their data resides in the database, Problem, there is no to! There must be free on both Before we get started, let Me define the term of used... Site2 take over the primary role ; Step 3 the secure network communication two! Meet the following criteria with respect to the topic security, a diamond appears in the parameter so that could! Is hdbesserver, and the ciphers for the HA/DR provider hook * internal networks in nodes. Addresses associated with the diagnose function promised here is the second part ( practical one ) of the SAP hostname! Db connections using SSL from ABAP instance for site1-3 replication ABAP instance interfaces attached to SAP HANA you up. Network interface that you can use elastic network interface is a virtual interface... More customers are attaching importance to the SAP HANA systems to edit the xscontroller.ini resides in the HANA! Hana outage reduction due to planned maintenance, fault, and the neighboring hosts are specified that worker. An name system ( DNS ) HANA and dynamic tiering host green.. Good job for mapping rule replication on the local primary system respect to the topic security 10 network... Also create an own certificate based on the local primary system, i.e the ciphers for HA/DR... Data Warehouse Foundation ( data Lifecycle Manager ) Delivery Unit on SAP for Me ( required... We will use for mapping rule statisticsserver.ini webdispatcher.ini xsengine.ini application_container auditing configuration authorization...

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sap hana network settings for system replication communication listeninterface