* In the first example, the [system_replication_communication]listeninterface parameter has been set to .global and the neighboring hosts are specified. As promised here is the second part (practical one) of the series about the secure network communication. In multiple-container systems, the system database and all tenant databases SAP HANA and dynamic tiering each support NFS and SAN storage using storage connector APIs. Copy the commands and deploy in SQL command. Alerting is not available for unauthorized users, Right click and copy the link to share this comment. 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 Stopped the Replication to TIER2 and TIER3 and removed them from the system replication configuration To learn more about this step, see Configuring Hostname Resolution for SAP HANA System Replication in the SAP Applications, including utility programs, SAP applications, third-party applications and customized applications, must use an SAP HANA interface to access SAP HANA. communication, and, if applicable, SAP HSR network traffic. 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 In the following example, two network interfaces are attached to each SAP HANA node as well Please keep in mind to configure the correct default gateway with is/local_addr for stateful firewall connections. 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! collected and stored in the snapshot that is shipped. * The hostname in below refers to internal hostname in Part1. On HANA you can also configure each interface. All tenant databases running dynamic tiering share the single dynamic tiering license. An additional license is not required. SAP HANA communicate over the internal network. It Primary Host: Enable system replication. (3) site3 is still registered to the site2 (as it's not impacted, async only as remote DR); HI DongKyun Kim, thanks for explanation . SAP HANA Network and Communication Security There are some documentations available by SAP, but some of them are outdated or not matching the customer environments/needs or not all-embracing. 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. Download the relevant compatible Dynamic Tiering software from SAP Marketplace and extract it to a directory. Before drawing the architecture, I hope this blog would help to get better understanding of networks required in HANA database regardless of the complexity. Setting up SAP data connection. We can install DLM using Hana lifecycle manager as described below: Click on to be configured. For more information, see SAP Note It must have a different host name, or host names in the case of global.ini -> [communication] -> listeninterface : .global or .internal I hope this little summary is helping you to understand the relations and avoid some errors and long researches. Keep the tenant isolation level low on any tenant running dynamic tiering. So, the easiest way is to use the XSA set-certificate command: Afterwards check your system with the diagnose function. Here your should consider a standard automatism. when site2(secondary) is not working any longer. SAP HANA SSFS Master Encryption Key The SSFS master encryption key must be changed in accordance with SAP Note 2183624. network interfaces you will be creating. Therfore you # 2020/4/15 Inserted Vitaliys blog link + XSA diagnose details Surprisingly the TIER3 system replication status did not show up on the Replication monitor in HANA studio The secondary system must meet the following criteria with respect to the recovery). Activated log backup is a prerequisite to get a common sync point for log If you plan to use storage connector APIs, you must configure the multipath.conf and global.ini files before installation. You set up system replication between identical SAP HANA systems. no internal interface found, listeninterface, .internal , KBA , HAN-DB , SAP HANA Database , Problem . As you may read between the lines Im not a fan of authorization concepts. Introduction. If you set jdbc_ssl to true will lead to encrypt all jdbc communications (e.g. Pre-requisites. Connection to On-Premise SAP ECC and S/4HANA. You cant provision the same service to multiple tenants. network interface in the remainder of this guide), you can create Network for internal SAP HANA communication: 192.168.1. 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). instances. 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. You can use SAP Landscape Management for And you need to change the parameter [communication]->listeninterface to .internal and add internal network entries as followings. # 2020/04/14 Insert of links / blogs as starting point, links for part II 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. SAP HANA dynamic tiering is an integrated component of the SAP HANA database and cannot be operated independently from SAP HANA. Have you already secured all communication in your HANA environment? SAP HANA System Target Instance. Prerequisites You comply all prerequisites for SAP HANA system replication. Removes system replication configuration. Most SAP documentations are for simple environments with one network interface and one IP label on it. Following parameters is set after configuring internal network between hosts. Any ideas? Thanks for letting us know we're doing a good job! The same instance number is used for With SAP HANA SPS 10, during installation the system sets up a PKI infrastructure used to secure the internal communication interfaces and protect the traffic between the different processes and SAP HANA hosts. When complete, test that the virtual host names can be resolved from You can modify the rules for a security group at any time. SAP Note 1876398 - Network configuration for System Replication in SAP HANA SP6. The BACKINT interface is available with SAP HANA dynamic tiering. For scale-out deployments, configure SAP HANA inter-service communication to let Therefore, I would highly recommend to stick with the default value .global in the parameter [system_replication_communication]->listeninterface. In HANA studio this process corresponds to esserver service. So I think each host, we need maintain two entries for "2. For your information, having internal networks under scale-out / system replication is a mandatory configuration in your production sites. Certificate Management in SAP HANA Secondary : Register secondary system. 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. 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). Step 1. Enables a site to serve as a system replication source site. Wonderful information in a couple of blogs!! You add rules to each security group that allow traffic to or from its associated The truth is that most of the customers have multiple interfaces, with multiple service labels with different network zones and domains. primary and secondary systems. own security group (not shown) to secure client traffic from inter-node communication. You comply all prerequisites for SAP HANA system Javascript is disabled or is unavailable in your browser. Both SAP HANA and dynamic tiering hosts have their own dedicated storage. You may choose to manage your own preferences. Have you identified all clients establishing a connection to your HANA databases? more about security groups, see the AWS It must have the same number of nodes and worker hosts. HANA documentation. connection recovery after disaster recovery with network-based IP First time, I Know that the mapping of hostname to IP can be different on each host in system replication relationship. System replication overview Replication modes Operation modes Replication Settings The datavolumes_es and logvolumes_es paths are defined in the SYSTEMDB globlal.ini file at the system level but are applied at the database level. with Tenant Databases. Log mode normal means that log segments are backed up. global.ini -> [internal_hostname_resolution] : So we followed the below steps: In the following example, ENI-1 of each instance shown is a member internal, and replication network interfaces. If you've got a moment, please tell us how we can make the documentation better. Application, Replication, host management , backup, Heartbeat. You need a minimum SP level of 7.2 SP09 to use this feature. * Dedicated network for system replication: 10.5.1. Failover nodes mount the storage as part of the failover process. As you create each new network interface, associate it with the appropriate System Monitoring of SAP HANA with System Replication. 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. groups. 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.) It must have the same system configuration in the system Stops checking the replication status share. SAP Note 1834153 . Early Watch Alert shows a red alert at section "SAP HANA Network Settings for System Replication Communication (listeninterface)": enable_ssl, system_replication_communication, global.ini, .global, TLS, encrypted communication expected, when, off, listeninterface , KBA , HAN-DB-SEC , SAP HANA Security & User Management , HAN-DB , SAP HANA Database , SV-SMG-SER-EWA , EarlyWatch Alert , HAN-DB-HA , SAP HANA High Availability (System Replication, DR, etc.) SQLDBC is the basis for most interfaces; however, it is not used directly by applications. automatically applied to all instances that are associated with the security group. Set Up System Replication with HANA Studio. (Storage API is required only for auto failover mechanism). It would be difficult to share the single network for system replication. The diagnose function available for unauthorized users, Right click and copy the link to share single. 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