Wilmington, Delaware. Is it possible to switch a tenant to another systemDB without changing all of your client connections? In Figure 10, ENI-2 is has its For more information about how to attach a network interface to an EC2 SAP Note 1834153 . With MDC (or like SAP says now container/tenants) you always have a systemDB and a tenant. It must have the same SAP system ID (SID) and instance 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. 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. Figure 10: Network interfaces attached to SAP HANA nodes. There are some documentations available by SAP, but some of them are outdated or not matching the customer environments/needs or not all-embracing. So site1 & site3 won't meet except the case that I described. Not sure up to which revision the "legacy" properties will work. If you answer one of the questions negative you should wait for the second part of this series , ########### If set on instances. SQL on one system must be manually duplicated on the other (3) site3 is still registered to the site2 (as it's not impacted, async only as remote DR); synchronous replication from memory of the primary system to memory of the secondary system, because it is the only method which allows the pacemaker cluster to make decisions based on the implemented algorithms. The systempki should be used to secure the communication between internal components. This is mentioned as a little note in SAP note 2300943 section 4. Thanks for letting us know we're doing a good job! Determine which format your key file has with a look into it: If it is a PKCS#12 format you have to follow this steps (there are several ways, just have a look at the openssl documentation): a) Export the keys in PKCS#12 transfer format: The HANA DB has to be online. Perform backup on primary. Trademark. Single node and System Replication(2 tiers), 2. Data Lifecycle Manager optimizes the memory footprint of data in SAP HANA tables by relocating data to Dynamic Tiering or HADOOP. In particolare, la configurazione usa la replica di sistema HANA (HSR) e Pacemaker in macchine virtuali Linux (VM) di Azure Red Hat Enterprise. The cleanest way is the Golden middle option 2. 2. Here you can reuse your current automatism for updating them. 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. Above configurations are only required when you have internal networks. overwrite means log segments are freed by the You have assigned the roles and groups required. SAP Note 1876398 - Network configuration for System Replication in SAP HANA SP6. If you've got a moment, please tell us how we can make the documentation better. You can use the SQL script collection from note 1969700 to do this. In multiple-container systems, the system database and all tenant databases configure security groups, see the AWS documentation. Changed the parameter so that I could connect to HANA using HANA Studio. 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? Questo articolo descrive come distribuire un sistema SAP HANA a disponibilit elevata in una configurazione con scalabilit orizzontale. SAP HANA System, Secondary Tier in Multitier System Replication, or This will speed up your login instead of using the openssl variant which you discribed. Removes system replication configuration. before a commit takes place on the local primary system. 2475246 How to configure HANA DB connections using SSL from ABAP instance. One question though - May i know how are you Monitoring this SSL Certificates, which are applied on HANA DB ? (Storage API is required only for auto failover mechanism). Have you identified all clients establishing a connection to your HANA databases? extract the latest SAP Adaptive Extensions into this share. If you have to install a new OS version you can setup your new environment and switch the application incl. HANA database explorer) with all connected HANA resources! You can also create an own certificate based on the server name of the application (Tier 3). Attach the network interfaces you created to your EC2 instance where SAP HANA is Since quite a while SAP recommends using virtual hostnames. Here most of the documentation are missing details and are useless for complex environments and their high security standards with stateful connection firewalls. Darryl Griffiths Blog from 2014 SAP HANA SSL Security Essential Any changes made manually or by 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. Privacy | to use SSL [, Configure HDB parameters for high security [, Pros and Cons certification collections [, HANA Cockpit (HTTPS)=> sapcontrol (SAP Start Service / sapstartsrv), HANA Cockpit (JDBC) => Database Explorer / Monitoring => Resources, Native Client Connection (ODBC/JDBC) => HANA. 2487731 HANA Basic How-To Series HANA and SSL CSR, SIGN, IMPLEMENT (pse container ) for ODBC/JDBC connections. Dynamic tiering enhances SAP HANA with large volume, warm data management capability. # 2021/03/18 Inserted XSA high security Kudos out to Patrick Heynen Failover nodes mount the storage as part of the failover process. SAP HANA Network Settings for System Replication 9. Registers a site to a source site and creates the replication Search for jobs related to Data provisioning in sap hana or hire on the world's largest freelancing marketplace with 22m+ jobs. 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?? You use this service to create the extended store and extended tables. Checks whether the HA/DR provider hook is configured. Another thing is the maintainability of the certificates. Public communication channel configurations, 2. You can configure additional network interfaces and security groups to further isolate You can also encrypt the communication for HSR (HANA System replication). (check SAP note 2834711). 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. The secondary system must meet the following criteria with respect to the reason: (connection refused). 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. As mentioned earlier, having internal networks are essential in production system in order to get the expected response time and optimize the system performance. Unregisters a system replication site on a primary system. Credentials: Have access to the SYSTEM user of SystemDB and " <SID>adm " for a SSH session on the HANA hosts. Application Server, SAP HANA Extended Application Services (XS), and SAP HANA Studio, Internal zone to communicate with hosts in a distributed SAP HANA system as # 2021/09/09 updated parameter info: is/local_addr thx @ Matthias Sander for the hint The customizable_functionalities property is defined in the SYSTEMDB globlal.ini file at the system level. mapping rule : internal_ip_address=hostname. global.ini -> [system_replication_hostname_resolution] : all SAP HANA nodes and clients. steps described in the appendix to configure Alerting is not available for unauthorized users, Right click and copy the link to share this comment, can consider changing for internal network, Public communication channel configurations, Internal communication channel configurations(Scale-out & System Replication), external(public) network : Channels used for external access to SAP HANA functionality by end-user clients, administration clients, application servers, and for data provisioning via SQL or HTTP, internal network : Channels used for SAP HANA internal communication within the database or, in a distributed scenario, for communication between hosts, This option does not require an internal network address entry.(Default). For this it may be wise to add an IP label, which means an own DNS record with name and IP, for each service. # 2021/09/09 updated parameter info: is/local_addr thx @ Matthias Sander for the hint 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). 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. For more information about how to create and Configure SAP HANA hostname resolution to let SAP HANA communicate over the By default, this enables security and forces all resources to use ssl. From Solution Manager 7.1 SP 14 on we support the monitoring of metrics on HANA instance-level and also have a template level for SAP HANA replication groups. You need at One aspect is the authentication and the other one is the encryption (client+server data + communication channels). well as for SAP HSR, Storage zone to persist SAP HANA data in the storage infrastructure for of the same security group that controls inbound and outbound network traffic for the client If you want to force all connection to use SSL/TLS you have to set the sslenforce parameter to true (global.ini). Create virtual host names and map them to the IP addresses associated with client, To detect, manage, and monitor SAP HANA as a 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. 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). The new rules are The required ports must be available. Setting Up System Replication You set up system replication between identical SAP HANA systems. If you do this you configure every communication on those virtual names including the certificates! database, ensure the following: To allow uninterrupted client communication with the SAP HANA Terms of use | Its purpose is to extend SAP HANA memory with a disk-centric columnar store (as opposed to the SAP HANA in-memory store). From HANA Scale-out documentation(SAP HANA Administration Guide -> [Availability and Scalability] -> [Scaling SAP HANA] -> [Configuring the Network for Multiple Hosts]), there are 2 configurable parameters. Ensures that a log buffer is shipped to the secondary system a distributed system. SAP HANA components communicate over the following logical network zones: Client zone to communicate with different clients such as SQL clients, SAP But still some more options e.g. System replication cannot be used in SAP HANA systems in which dynamic tiering is enabled. global.ini -> [communication] -> listeninterface : .global or .internal network. /hana/shared should be mounted on both the hosts namely HANA host and Dynamic Tiering host which will contain installation files of HANA and Dynamic Tiering service. Follow the 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. It would be difficult to share the single network for system replication. You cant provision the same service to multiple tenants. (2) site2 take over the primary role; We are talk about signed certificates from a trusted root-CA. * as internal network as described below picture. (more details in 8.) Multiple interfaces => one or multiple labels (n:m). Amazon EBS-optimized instances can also be used for further isolation for storage I/O. ALTER SYSTEM ALTER CONFIGURATION ( global.ini, SYSTEM ) SET( customizable_functionalities, dynamic_tiering ) = true. 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. system. 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. 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