For more information, see Assigning Virtual Host Names to Networks. Primary, SAP Landscape Management 3.0, Enterprise Edition, What's New in 3.0 SP11 Enterprise Edition, What's New in 3.0 SP10 Enterprise Edition, Initial Setup Using the Configuration Wizard, Preparing SAP Application Instances on Windows, Installing SAP Application Instances with Virtual Host Names on Windows, Preparing Additional Hosts for Database Relocation, Preparing SAP Application Instances on UNIX, Installing SAP Application Instances with Virtual Host Names on UNIX, Configuring Individual User Interface Settings, Hiding Menu Items from the User Interface, Configuring Global User Interface Settings, Setting Up Validations for Landscape Entities, Integrating Partner Virtualization Technology, Obtaining Virtual Host Details from Virtual Host Provider, Creating Rolling Kernel Switch Repositories, Creating Rolling Kernel Switch Configurations, Configuring Diagnostics Agent Installations and Uninstallations, Configuring Application Server Installations and Uninstallations, Creating SAP Adaptive Extensions Repositories on UNIX, Configuring SAP Adaptive Extensions on UNIX, Creating SAP Adaptive Extensions Repositories on Windows, Configuring SAP Adaptive Extensions on Windows, Preparing Replication Status Repositories, Creating SAP HANA Replication Status Repositories, Configuring Custom Settings for System Provisioning, Configuring Additional Instance Information, Configuring Diagnostics Agent Connections, Configuring SystemDB Administrator Credentials, Configuring Database Administrator Credentials, Configuring Database Schema User Credentials, Specifying Configuration Directories of Database Instances, Specifying SQL Ports for Tenant Databases, Configuring Custom Properties for Instances, Assigning Custom Relations and Target Entities, Specifying Exclusively Consumed Resources, Extracting Mount Points from the File System, Enabling E-Mail Notifications for Activities, Enabling Custom Notifications for Activities, Configuring Managed Systems as SAP Solution Manager Systems, Assigning SAP Solution Manager Systems to Managed Systems, Configuring Managed Systems as Focused Run Systems, Assigning Focused Run Systems to Managed Systems, Configuring Custom Properties for Systems, Provisioning and Remote Function Call (RFC), Enabling Systems for Provisioning Operations, Configuring SAP Test Data Migration Server, Adding Mount Point Configurations on System Level, Configuring Remote Function Call Destinations, Configuring Outgoing Connections for System Isolation, Assigning Elements to Characteristic Values, Search Operators and Wildcards for Global Searches, Search Operators and Wildcards for Local Searches, Configuring the UI Refresh Interval per Screen, Operations for Adaptive Enabled Systems and Instances, Operations for Non-Adaptive Enabled Systems and Instances, Allowing One Instance to Run on One Host at a Time, Allowing Multiple Instances to Run on One Host at a Time, Managing SAP Adaptive Extensions Installations, General Prerequisites for Instance Operations, Starting Including Preparing Systems and Instances, Stopping and Unpreparing Systems and Instances, Relocating Not Running Systems and Instances, Restarting the AS Java Instance of an AS ABAP/Java System, Restarting and Reregistering an Instance Agent, Registering and Starting an Instance Agent, Executing Operations on Instances with an SAP Solution Manager System Assigned to Them, Executing Operations on Instances with a Focused Run System Assigned to Them, Description of the Rolling Kernel Switch Concept, Installing the License for ABAP Post-Copy Automation, Setting the Target Status for an Instance, Clearing the Target Status for an Instance, Getting A List of Users Who Are Logged On, Active/Active (Read Enabled) System Replication, Enabling or Disabling Full Sync Replication, Performing a Forced System Replication Takeover, Registering a Secondary Tier for System Replication, Starting Check of Replication Status Share, Stopping Check of Replication Status Share, Stopping Replicated Multi-Tier SAP HANA Systems, Unregistering Secondary Tier from System Replication, Unregistering System Replication Site on Primary, Assign Replication Status Repository Workflow, Moving a Tenant Database Near Zero Downtime, Near Zero Downtime Maintenance on Non-Primary Tier, Performing Near Zero Downtime Maintenance on Non-Primary Tier, Near Zero Downtime Maintenance on Non-Primary Tier Workflow, Near Zero Downtime Maintenance on Primary Tier, Performing Near Zero Downtime Maintenance on Primary Tier, Near Zero Downtime Maintenance on Primary Tier Workflow, Performing a Near Zero Downtime SAP HANA Update, Near Zero Downtime SAP HANA Update Workflow, Near Zero Downtime SAP HANA Update on Primary Tier, Performing a Near Zero Downtime SAP HANA Update on Primary Tier, Near Zero Downtime SAP HANA Update on Primary Tier Workflow, Register Primary Tier as new Secondary Tier, Registering a Primary Tier as new Secondary Tier, Register Primary Tier as new Secondary Tier Workflow, Removing Replication Status Configuration, Remove Replication Status Configuration Workflow, Updating Replication Status Configuration, Update Replication Status Configuration Workflow, Deactivating (OS Shutdown) Virtual Elements, Deactivating (Power Off) Virtual Elements, General Prerequisites for Provisioning Systems, Refreshing a Database Using a Database Backup, Executing Post-Copy Automation Standalone, Monitoring a System Clone, Copy, Refresh, or Rename, Installing Application Servers on an Existing System, Creating SAP HANA System Replication Tiers, Destroying SAP HANA System Replication Tiers, Configuring SAP Host Agent Registered Scripts, Creating Provider Script Registered with Host Agent, Parameters for Custom Operations and Custom Hooks, Creating Documentation for Custom Operations, Rearranging the Order of Custom Operations, Parameterizing Values for Provisioning Templates, Saving Activities as Provisioning Blueprints, Saving Provisioning Blueprints as Operation Template, Grouping Templates available in the Schedule, Filtering Templates available in the Schedule, Downloading Activities Support Information, General Security Aspects and Relevant Assets, Assets SAP Landscape Management Relies On, Setting Authorization Permissions for Operations and Content, Setting Authorization Permissions for Views, SAP Note 2211663 - The license changes in an, SAP Note 1876398 - Network configuration for System Replication in, SAP Note 17108 - Shared memory still present, startup fails, SAP Note 1945676 - Correct usage of hdbnsutil -sr_unregister, Important Disclaimers and Legal Information. mapping rule : internal_ip_address=hostname. Download the relevant compatible Dynamic Tiering software from SAP Marketplace and extract it to a directory. Perform SAP HANA Please note that SAP HANA Dynamic Tiering ("DT") is in maintenance only mode and is not recommended for new implementations. See Ports and Connections in the SAP HANA documentation to learn about the list 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 add rules to each security group that allow traffic to or from its associated Single node and System Replication(3 tiers), 3. number. Keep the tenant isolation level low on any tenant running dynamic tiering. Darryl Griffiths Blog from 2014 SAP HANA SSL Security Essential One aspect is the authentication and the other one is the encryption (client+server data + communication channels). Overview. Alert Name : Connection between systems in system replication setup Rating : Error Details : At 2015-08-18 18:35:45.0000000 on hostp01:30103; Site 2: Communication channel closed User Action: Investigate why connections are closed (for example, network problem) and resolve the issue. 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. For more information, see Standard Roles and Groups. * You have installed internal networks in each nodes. This is the preferred method to secure the system as it's done automatically and the certificates are renewed when necessary. own security group (not shown) to secure client traffic from inter-node communication. The OS process for the dynamic tiering host is hdbesserver, and the service name is esserver. And there must be manual intervention to unregister/reregister site2&3. SAP HANA Network Settings for System Replication 9. global.ini -> [system_replication_hostname_resolution] : # 2021/04/06 Inserted possibility for multiple SAN in one request / certificate with sapgenpse After some more checks we identified the listeninterface and internal_hostname_resolution parameters were not updated on TIER2 and TIER3 SAP HANA system replication is used to address SAP HANA outage reduction due to planned maintenance, fault, and disasters. 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. (1) site1 is broken and needs repair; before a commit takes place on the local primary system. You use this service to create the extended store and extended tables. General Prerequisites for Configuring SAP Any ideas? Setting up SAP data connection. Single node and System Replication(3 tiers)", for example, is that right? Or see our complete list of local country numbers. system. 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. When set, a diamond appears in the database column. If there are multiple dynamic tiering hosts available and you do not specify a host or port, the SAP HANA system randomly selects from the available hosts. internal, and replication network interfaces. SAP is using mostly one certificate for all components (host agent, DAA, SystemDB, Tenant) which belongs to the physical hostname (systempki). Do you have similar detailed blog for for Scale up with Redhat cluster. 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 Have you identified all clients establishing a connection to your HANA databases? United States. extract the latest SAP Adaptive Extensions into this share. 1. To detect, manage, and monitor SAP HANA as a communication, and, if applicable, SAP HSR network traffic. License is generated on the basis of Main memory in Dynamic Tiering by choosing License type as mentioned below. 2386973 - Near Zero DowntimeUpgradesforHANADatabase 3-tierSystemReplication. (2) site2 take over the primary role; * Dedicated network for system replication: 10.5.1. 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. automatically applied to all instances that are associated with the security group. Stay healthy, In particolare, la configurazione usa la replica di sistema HANA (HSR) e Pacemaker in macchine virtuali Linux (VM) di Azure Red Hat Enterprise. Thanks for letting us know this page needs work. Here you can reuse your current automatism for updating them. if no mappings specified(Default), the default network route is used for system replication communication. I haven't seen it yet, but I will link it in this post.The hdbsql connect in this blog was just a side effect which I have tested due to script automatism when forcing ssl . Certificate Management in SAP HANA With MDC (or like SAP says now container/tenants) you always have a systemDB and a tenant. # Inserted new parameters from 2300943 Only set this to true if you have configured all resources with SSL. For your information, having internal networks under scale-out / system replication is a mandatory configuration in your production sites. Are you already prepared with multiple interfaces (incl. no internal interface found, listeninterface, .internal , KBA , HAN-DB , SAP HANA Database , Problem . Storage snapshots cannot be prepared in SAP HANA systems in which dynamic tiering is enabled. the secondary system, this information is evaluated and the The extended store can reduce the size of your in-memory database. 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! 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. To set it up is one task, to maintain and operate it another. 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 . instance, see the AWS documentation. Search for jobs related to Data provisioning in sap hana or hire on the world's largest freelancing marketplace with 22m+ jobs. replication. /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. resolution is working by creating entries in all applicable host files or in the Domain You have installed SAP Adaptive Extensions. Dynamic tiering adds smart, disk-based extended storage to your SAP HANA database. 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. The instance number+1 must be free on both As you create each new network interface, associate it with the appropriate Comprehensive and complete, thanks a lot. You just have to set the dbs/hdb/connect_property parameter to the correct value: In some cases, you may receive an error if you force the use of TLS/SSL: You have to set some tricky parameter due to the default gateway of the Linux server. * The hostname in below refers to internal hostname in Part1. 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. Configure SAP HANA hostname resolution to let SAP HANA communicate over the exactly the type of article I was looking for. of ports used for different network zones. Failover nodes mount the storage as part of the failover process. 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 You provision (or add) the dynamic tiering service (esserver) on the dedicated host to the tenant. 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. 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. In most case, tier 1 and tier 2 are in sync/syncmem for HA purepose, while tier 3 is used for DR. Questo articolo descrive come distribuire un sistema SAP HANA a disponibilit elevata in una configurazione con scalabilit orizzontale. But keep in mind that jdbc_ssl parameter has no effect for Node.js applications! So site1 & site3 won't meet except the case that I described. Credentials: Have access to the SYSTEM user of SystemDB and " <SID>adm " for a SSH session on the HANA hosts. There are some documentations available by SAP, but some of them are outdated or not matching the customer environments/needs or not all-embracing. global.ini: Set inside the section [communication] ssl from off to systempki. These are all pretty broad topic and for now we will focus on the x.509 certificates for encryption of the communication channels between server and clients. Wonderful information in a couple of blogs!! Which communication channels can be secured? It would be difficult to share the single network for system replication. How to Configure SSL in SAP HANA 2.0 Otherwise, the system performance or expected response time might not be guaranteed due to the limited network bandwidth. thank you for this very valuable blog series! 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