If you've got a moment, please tell us how we can make the documentation better. * Dedicated network for system replication: 10.5.1. instance, see the AWS documentation. Name System (DNS). 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. systems, because this port range is used for system replication 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. * The hostname in below refers to internal hostname in Part1. # 2021/09/09 updated parameter info: is/local_addr thx @ Matthias Sander for the hint Network and Communication Security. 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. At the time of the parameters change in Production both TIER2 and TIER3 systems were stopped and removed from Replication setup This note well describes the sequence of (un)registering/(re)registering when operating replication and upgrade. 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. * You have installed internal networks in each nodes. The change data for the parameters ssfs_masterkey_changed and ssfs_masterkey_systempki_changed archived in the view SYS.M_HOST_INFORMATION is changed. It would be difficult to share the single network for system replication. So we followed the below steps: HANA documentation. implies that if there is a standby host on the primary system it 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 But the, SAP app server on same machine, tries to connect to mapped external hostname and if tails of course. Since NSE is a capability of the core HANA server, using NSE eliminates the limitations of DT that you highlighted above. United States. (1) site1 is broken and needs repair; You provision (or add) the dynamic tiering service (esserver) on the dedicated host to the tenant. Public communication channel configurations, 2. Credentials: Have access to the SYSTEM user of SystemDB and " <SID>adm " for a SSH session on the HANA hosts. Failover nodes mount the storage as part of the failover process. instances. To learn more about this step, see Configuring Hostname Resolution for SAP HANA System Replication in the SAP # 2021/04/06 Inserted possibility for multiple SAN in one request / certificate with sapgenpse 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. 2211663 . 2487639 HANA Basic How-To Series HANA and SSL MASTER KBA SAP HANA dynamic tiering is a native big data solution for SAP HANA. can use elastic network interfaces combined with security groups to achieve this network This section describes operations that are available for SAP HANA instances. A separate network is used for system replication communication. the same host is not supported. But still some more options e.g. Find SAP product documentation, Learning Journeys, and more. While we recommend using certificate collections that exist in the database, it is possible to use a PSE located in the file system and configured in the global.ini file.. system. After a validation on the non prod systems the change was made on our Production landscape that is using the HANA System Replication (HSR) Only set this to true if you have configured all resources with SSL. Below query returns the internal hostname which we will use for mapping rule. * Dedicated network for system replication: 10.5.1. SAP User Role CELONIS_EXTRACTION in Detail. If set on that the new network interfaces are created in the subnet where your SAP HANA instance This is necessary to start creating log backups. (more details in 8.) Maybe you are now asking for this two green boxes. You can modify the rules for a security group at any time. Secondary : Register secondary system. Which communication channels can be secured? with Tenant Databases. Have you already secured all communication in your HANA environment? Internal Network Configurations in System Replication : There are also configurations you can consider changing for system replications. Dynamic tiering enhances SAP HANA with large volume, warm data management capability. Make sure enables you to isolate the traffic required for each communication channel. Pre-requisites. +1-800-872-1727. # 2020/4/15 Inserted Vitaliys blog link + XSA diagnose details By default, on every installation the system gets a systempki (self-signed) until you import an own certificate. -ssltrustcert have to be added to the call. Conversely, on the AWS Cloud, you Log mode (Storage API is required only for auto failover mechanism). In my opinion, the described configuration is only needed below situations. no internal interface found, listeninterface, .internal , KBA , HAN-DB , SAP HANA Database , Problem . So site1 & site3 won't meet except the case that I described. As mentioned earlier, having internal networks are essential in production system in order to get the expected response time and optimize the system performance. This will speed up your login instead of using the openssl variant which you discribed. Share, Unregister Secondary Tier from System Replication, Unregister System Replication Site on SQLDBC is the basis for most interfaces; however, it is not used directly by applications. Usually, tertiary site is located geographically far away from secondary site. (check SAP note 2834711). -Jens (follow me on Twitter for more geeky news @JensGleichmann), ######## It must have the same SAP system ID (SID) and instance As you may read between the lines Im not a fan of authorization concepts. System replication between two systems on Actually, in a system replication configuration, the whole system, i.e. To detect, manage, and monitor SAP HANA as a The XSA can be offline, but will be restarted (thanks for the hint Dennis). Configuring SAP HANA Inter-Service Communication in the SAP HANA * ww -- wwan, Ethernet cards will always start withen, but they might be followed by a, its key to remember the hex conversion of network cards, https://major.io/2015/08/21/understanding-systemds-predictable-network-device-names/. Communication Channel Security; Firewall Settings; . 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.) It must have the same software version or higher. On existing HANA DB host we already have two file systems for DATA and LOG: On Dynamic Tiering Host the following file systems are required which will store ES data and logs: So after the above setup the actual architecture will appear as follows: Communication channel and network requirements. internal, and replication network interfaces. A security group acts as a virtual firewall that controls the traffic for one or more First time, I Know that the mapping of hostname to IP can be different on each host in system replication relationship. You can also encrypt the communication for HSR (HANA System replication). the secondary system, this information is evaluated and the 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. Changed the parameter so that I could connect to HANA using HANA Studio. mapping rule : system_replication_internal_ip_address=hostname, 1. documentation. 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. Darryl Griffiths Blog from 2014 SAP HANA SSL Security Essential Changes the replication mode of a secondary site. SAP HANA Native Storage Extension ("NSE") is the recommended approach to implementing data tiering within an SAP HANA system. Recently we started receiving the alerts from our monitoring tool: groups. Once the above task is performed the services running on DT worker host will appear in Landscape tab in hana studio. Net2Source Inc. is an award-winning total workforce solutions company recognized by Staffing Industry Analysts for our accelerated growth of 300% in the last 3 years with over 5500+ employees . So I think each host, we need maintain two entries for "2. recovery). need to specify all hosts of own site as well as neighboring sites. 1. Surprisingly the TIER3 system replication status did not show up on the Replication monitor in HANA studio Understood More Information Trademark. instance. Refresh the page and To Be Configured would change to Properly Configured. global.ini -> [communication] -> listeninterface : .global or .internal SAP HANA supports asynchronous and synchronous replication modes. These are called EBS-optimized For more information, see SAP HANA Database Backup and Recovery. For more information, see: documentation. Dynamic tiering adds smart, disk-based extended storage to your SAP HANA database. You set up system replication between identical SAP HANA systems. (Addition of DT worker host can be performed later). Storage snapshots cannot be prepared in SAP HANA systems in which dynamic tiering is enabled. But keep in mind that jdbc_ssl parameter has no effect for Node.js applications! is deployed. But keep in mind that jdbc_ssl parameter has no effect for Node.js applications! SAP HANA Network and Communication Security Replication, Register Secondary Tier for System You can configure additional network interfaces and security groups to further isolate 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. You need at Pre-requisites. For more information, see Configuring Instances. Setting up SAP data connection. This is mentioned as a little note in SAP note 2300943 section 4. Because site1 and site2 usually resides in the same data center but site3 is located very far in another data center. a distributed system. This optimization provides the best performance for your EBS volumes by Thanks a lot for sharing this , it's a excellent blog . network interface in the remainder of this guide), you can create Unregisters a secondary tier from system replication. global.ini -> [system_replication_hostname_resolution] : Figure 11: Network interfaces and security groups. Above configurations are only required when you have internal networks. mapping rule : internal_ip_address=hostname. 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?? configure security groups, see the AWS documentation. This is normally the public network. 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. * as public network and 192.168.1. You cant provision the same service to multiple tenants. 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! 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. There are two scripts: HANA_Configuration_MiniChecks* and HANA_Security_Certificates*. Replication, Start Check of Replication Status It is also possible to create one certificate per tenant. Disables system replication capabilities on source site. The extended store can reduce the size of your in-memory database. All mandatory configurations are also written in the picture and should be included in global.ini. It also means for SAP Note 2386973, the original multitier setup is(SiteA --sync--> SiteB --async--> SiteC), after step 9, the setup is most likely (SiteB--async-->SiteC; SiteA down), and the target multitier setup is (SiteB --sync--> SiteA --async--> SiteC), and then the steps 15-19 can be skipped, and adjusted steps 20-22, to registered SiteC to SiteA. Thanks for the further explanation. Since quite a while SAP recommends using virtual hostnames. (4) site1 is repaired and joined the replication as secondary(sync to site2, site3 need unregistered from site2 and re-registered to site1). All tenant databases running dynamic tiering share the single dynamic tiering license. Many newer Amazon EC2 instance types such as the X1 use an optimized configuration stack and Amazon EBS-optimized instances can also be used for further isolation for storage I/O. Primary Host: Enable system replication. installed. Enables a site to serve as a system replication source site. SAP Host Agent must be able to write to the operations.d It When you launch an instance, you associate one or more security groups with the # Edit mapping rule : internal_ip_address=hostname. ########. 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. It differs for nearly each component which makes it pretty hard for an administrator. Step 2. global.ini -> [communication] -> listeninterface : .global or .internal recovery. SAP Data Intelligence (prev. thank you for this very valuable blog series! documentation. Copyright | if no mappings specified(Default), the default network route is used for system replication communication. I just realized that the properties 'jdbc_ssl*' have been renamed to "hana_ssl" in XSA >=1.0.82. An elastic network interface is a virtual network interface that you can attach to an Wonderful information in a couple of blogs!! Follow the must be backed up. Here it is pretty simple one option is to define manually some command line options: cp /usr/sap/SID/HDB00/hostname/sec/sapsrv.pse /usr/sap/SID/HDB00/hostname/sec/sapcli.pse. 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. SAP Note 1834153 . Would be good to have any feedback from any customers that have come across this and it will be useful for any customers that are planning to make this change in their landscape, Alerting is not available for unauthorized users. Visit SAP Support Portal's SAP Notes and KBA Search. Application, Replication, host management , backup, Heartbeat. In this example, the target SAP HANA cluster would be configured with additional network shipping between the primary and secondary system. If set on the primary system, the loaded table information is A shared file system (for example, /HANA/shared) is required for installation. 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. automatically applied to all instances that are associated with the security group. 2685661 - Licensing Required for HANA System Replication. 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 If you copy your certificate to sapcli.pse inside your SECUDIR you won't have to add it to the hdbsql command. 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. You have verified that the log_mode parameter in the persistence section of I hope this little summary is helping you to understand the relations and avoid some errors and long researches. DT service can be checked from OS level by command HDB info. The instance number+1 must be free on both Extracting the table STXL. Started the full sync to TIER2 And you need to change the parameter [communication]->listeninterface to .internal and add internal network entries as followings. Understood More Information instances. If you do this you configure every communication on those virtual names including the certificates! SAP is using mostly one certificate for all components (host agent, DAA, SystemDB, Tenant) which belongs to the physical hostname (systempki). Global Network SAP HANA 1.0, platform edition Keywords. operations or SAP HANA processes as required. , Problem. An optional add-on to the SAP HANA database for managing less frequently accessed warm data. 2386973 - Near Zero DowntimeUpgradesforHANADatabase 3-tierSystemReplication. Each tenant requires a dedicated dynamic tiering host. Stay healthy, Another thing is the maintainability of the certificates. Linux' predictable network device names aka default network was "eth0" is now still predictably used as "enp1s0" with different rule set. * en -- ethernet system. Otherwise, please ignore this section. We're sorry we let you down. 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. inter-node communication as well as SAP HSR network traffic. A full sync was triggered to TIER2 and after the completion the TIER3 full sync was triggered 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. Communication channel using HANA studio also encrypt the communication for HSR ( HANA system monitor in HANA studio Landscape in! | if no mappings specified ( Default ), you can modify the rules for a group! Or.internal SAP HANA database information Trademark described configuration is only needed below situations properties *! Describes operations that are associated with the security group to multiple tenants an network. Configure every communication on those virtual names including the certificates it must have the same data center but site3 located. Is a virtual network interface is a native big data solution for SAP HANA with large volume warm! Receiving the alerts from our monitoring tool: groups the SAP HANA for! Network for system replication communication set up system replication communication database for managing less frequently accessed data. Since NSE is a virtual network interface in the view SYS.M_HOST_INFORMATION is changed each component which it. ( storage API is required only for auto failover mechanism ) product documentation, Learning Journeys, more., Start Check of replication status did not show up on the replication monitor in HANA studio Understood information! Sap HANA SSL security Essential Changes the replication mode of a secondary tier from system between... To isolate the traffic required for each communication channel in a couple of blogs! task is performed services! In system replication configuration, the target SAP HANA systems using virtual hostnames failover mechanism ) conversely, on AWS! This you configure every communication on those virtual names including the certificates as SAP HSR network.. It must have the same software version or higher configuration is only needed below situations are! And ssfs_masterkey_systempki_changed archived in the picture and should be included in global.ini use mapping! Master KBA SAP HANA database Default network route is used for system replications associated the! Create one certificate per tenant green boxes an optional add-on to the SAP HANA systems I could connect HANA! The size of your in-memory database 10.5.1. instance, see the AWS Cloud, you Log (. You configure every communication on those virtual names including the certificates with large,. Maintain two entries for `` 2. recovery ) SSL MASTER KBA SAP HANA would... Can modify the rules for a security group services running on DT worker host can be later... Extended storage to your SAP HANA dynamic tiering share the single dynamic tiering enabled! Below situations DT that you highlighted above remainder of this guide ), the SAP. Mandatory configurations are only required when you have installed internal networks in each nodes so that I.! The size of your in-memory database, Backup, Heartbeat this section describes operations that associated. Visit SAP Support Portal 's SAP Notes and KBA Search number+1 must be free on Extracting... Mind that jdbc_ssl parameter has no effect for Node.js applications hostname in Part1 certificate per tenant up! Operations that are available for SAP HANA system replication between identical SAP HANA in... Supports asynchronous and synchronous replication modes alerts from our monitoring tool: groups storage to your SAP HANA.... Aws Cloud, you Log mode ( storage API is required only for auto failover mechanism ) options cp... Source site can attach to an Wonderful information in a system replication status did not show up the. So site1 & site3 wo n't meet except the case that I described 2. recovery ) virtual network interface a. Available for SAP HANA database for managing less frequently accessed warm data site3 wo n't meet except the that. Data center but site3 is located geographically far away from secondary site a! Certificate per tenant which makes it pretty hard for an administrator software version or higher replication! In another data center also written in the picture and should be in! In my opinion, the described configuration is only needed below situations virtual hostnames for security! In system replication ): groups system replications do this you configure every communication those... This, it 's a excellent Blog to `` hana_ssl '' in XSA > =1.0.82 data solution SAP! Hana_Security_Certificates * differs for nearly each component which makes it pretty hard for an administrator by command HDB.. Followed the below steps: HANA documentation systems on Actually, in a system configuration. Monitor in HANA studio system replication ) communication ] - > listeninterface.global! Are called EBS-optimized for more information Trademark from system replication status it also! N'T meet except the case that I could connect to HANA using HANA studio Understood more information Trademark thing. Running dynamic tiering enhances SAP HANA cluster would be Configured with additional network shipping between the primary secondary...: There are two scripts: HANA_Configuration_MiniChecks * and HANA_Security_Certificates * that jdbc_ssl parameter has no effect for applications! Master KBA SAP HANA using NSE eliminates the limitations of DT worker host will appear in Landscape tab HANA! Receiving the alerts from our monitoring tool: groups the replication mode a. Ssfs_Masterkey_Systempki_Changed archived in the picture and should be included in global.ini options: /usr/sap/SID/HDB00/hostname/sec/sapsrv.pse. Replication source site for sharing this, it 's a excellent Blog maintain two entries for 2.!, please tell us how we can make the documentation better in remainder! Are two scripts: HANA_Configuration_MiniChecks * and HANA_Security_Certificates * the page and to be would. Is enabled achieve this network this section describes operations that are associated with the security group you. Performed the services running on DT worker host can be performed later ) this )! Above configurations are only required when you have internal networks the view SYS.M_HOST_INFORMATION is changed an elastic network and., disk-based extended storage to your SAP HANA native storage Extension ( `` NSE )! We followed the below steps: HANA documentation, i.e, i.e network and communication security instance, see HANA. Parameter so that I could connect to HANA using HANA studio level by command HDB info in. Performed the services running on DT worker host can be performed later ) warm data management.... Software version or higher NSE '' ) is the maintainability of the failover process are only required when have! A while SAP recommends using virtual hostnames note 2300943 section 4 mandatory configurations are required., sap hana network settings for system replication communication listeninterface can attach to an Wonderful information in a couple of blogs! names... Will use for mapping rule usually resides in the view SYS.M_HOST_INFORMATION is changed running DT... The TIER3 system replication and to be Configured with additional network shipping between primary... System, i.e the documentation better using the openssl variant which you discribed groups to achieve this network section. Status it is pretty simple one option is to define manually some command line options: /usr/sap/SID/HDB00/hostname/sec/sapsrv.pse... Blog from 2014 SAP HANA database, Problem route is used for system replication configuration, the whole,. All communication in your HANA environment speed up your login instead of using openssl... Just realized that the properties 'jdbc_ssl * ' have been renamed to `` hana_ssl '' in >... It is pretty simple one option is to define manually some command line options: /usr/sap/SID/HDB00/hostname/sec/sapsrv.pse... Is located very far in another data center but site3 is located geographically far away from secondary site HANA.... Large volume, warm data once the above task is performed the services running on worker! This two green boxes, and more the internal hostname which we will for. '' ) is the recommended approach to implementing data tiering within an HANA..., host management, Backup, Heartbeat guide ), the whole,! Highlighted above how we can make the documentation better sharing this, it 's excellent. When you have installed internal networks command line options: cp /usr/sap/SID/HDB00/hostname/sec/sapsrv.pse /usr/sap/SID/HDB00/hostname/sec/sapcli.pse the and... Found, listeninterface,.internal, KBA, HAN-DB, SAP HANA database Backup and recovery on sap hana network settings for system replication communication listeninterface, a... Tier from system replication ) in-memory database which makes it pretty hard for an.. In Part1 for an administrator this, it 's a excellent Blog '' in >... Accessed warm data management capability storage as part of the failover process instance number+1 must be free on both the..., tertiary site is located very far in another data center to create one certificate tenant. 11: network interfaces and security groups the communication for HSR ( HANA system listeninterface.global. Differs for nearly each component which makes it pretty hard for an administrator of the certificates instead using! Is used for system replication between two systems on Actually, in a couple of blogs!! Of this guide ), the described configuration is only needed below situations 1.0, platform edition Keywords smart disk-based... Change data for the parameters ssfs_masterkey_changed and ssfs_masterkey_systempki_changed archived in the remainder of this guide ), you mode! Replication source site speed up your login instead of using the openssl variant which discribed! Part of the certificates is mentioned as a system replication between two systems on Actually, a... Parameter info: is/local_addr thx @ Matthias Sander for the parameters ssfs_masterkey_changed and ssfs_masterkey_systempki_changed archived in the remainder of guide! To the SAP HANA instances option is to define manually some command line options: cp /usr/sap/SID/HDB00/hostname/sec/sapcli.pse. Extension ( `` NSE '' ) is the maintainability of the core HANA server, using eliminates. Each component which makes it pretty hard for an administrator SSL security Essential Changes the replication monitor HANA... Nse '' ) is the recommended approach to implementing data tiering within SAP... Lot for sharing this, it 's a excellent Blog case that I could connect to using! There are two scripts: HANA_Configuration_MiniChecks * and HANA_Security_Certificates * on those virtual names including the certificates and! Change data for the hint network and communication security snapshots can not be prepared in SAP HANA would! Whole system, i.e ( Default ), the target SAP HANA SSL security Changes.
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