The required ports must be available. If you plan to use storage connector APIs, you must configure the multipath.conf and global.ini files before installation. Dynamic tiering is embedded within SAP HANA operational processes, such as standby setup, backup and recovery, and system replication. labels) and the suitable routing for a stateful connection for your firewall rules and network segmentation. So we followed the below steps: Provisioning dynamic tiering service to a tenant database. # Inserted new parameters from 2300943 recovery. Changes the replication mode of a secondary site. 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. I'm getting this email alert from the HANA tenant database: Alert Name : Connection between systems in system replication setup, Details : At 2015-08-18 18:35:45.0000000 on hostp01:30103; Site 2: Communication channel closed. instances. User Action: Investigate why connections are closed (for example, network problem) and resolve the issue. SQL on one system must be manually duplicated on the other
Only one dynamic tiering license is allowed per SAP HANA system. system. Unless you are using SAPGENPSE, do not password protect the keystore file that contains the servers private key. Have you identified all clients establishing a connection to your HANA databases? You can use SAP Landscape Management for
If you answer one of the questions negative you should wait for the second part of this series , ########### A shared file system (for example, /HANA/shared) is required for installation. For more information, see SAP HANA Database Backup and Recovery. before a commit takes place on the local primary system. Enables a site to serve as a system replication source site. When complete, test that the virtual host names can be resolved from if no mappings specified(Default), the default network route is used for system replication communication. Post this, Installation of Dynamic Tiering License need to done via COCKPIT. To learn If you want to force all connection to use SSL/TLS you have to set the sslenforce parameter to true (global.ini). 2685661 - Licensing Required for HANA System Replication. An additional license is not required. can use elastic network interfaces combined with security groups to achieve this network path for the system replication. interfaces similar to the source environment, and ENI-3 would share a common security group. For more information about how to attach a network interface to an EC2 Internal communication channel configurations(Scale-out & System Replication). You have assigned the roles and groups required. shipping between the primary and secondary system. * en -- ethernet Scale-out and System Replication(3 tiers). This will speed up your login instead of using the openssl variant which you discribed. Legal Disclosure |
Recently we started receiving the alerts from our monitoring tool: Only set this to true if you have configured all resources with SSL. Amazon EBS-optimized instances can also be used for further isolation for storage I/O. Another thing is the maintainability of the certificates. 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. Secondary : Register secondary system. Binds the processes to this address only and to all local host interfaces. network interface in the remainder of this guide), you can create Storage snapshots cannot be prepared in SAP HANA systems in which dynamic tiering is enabled. You have verified that the log_mode parameter in the persistence section of
Thanks a lot for sharing this , it's a excellent blog . On every installation of an SAP application you have to take care of this names. Actually, in a system replication configuration, the whole system, i.e. If set on
(Storage API is required only for auto failover mechanism). connection recovery after disaster recovery with network-based IP
Internal Network Configurations in System Replication : There are also configurations you can consider changing for system replications. Therefore, I would highly recommend to stick with the default value .global in the parameter [system_replication_communication]->listeninterface. Any changes made manually or by
Introduction. Started the full sync to TIER2 You need at
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. Otherwise, the system performance or expected response time might not be guaranteed due to the limited network bandwidth. But keep in mind that jdbc_ssl parameter has no effect for Node.js applications! 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. Separating network zones for SAP HANA is considered an AWS and SAP best practice. The same instance number is used for
We can install DLM using Hana lifecycle manager as described below: Click on to be configured. # 2021/03/18 Inserted XSA high security Kudos out to Patrick Heynen Here you can reuse your current automatism for updating them. SQLDBC is the basis for most interfaces; however, it is not used directly by applications. The secondary system must meet the following criteria with respect to the
Configuring SAP HANA Inter-Service Communication in the SAP HANA The host and port information are that of the SAP HANA dynamic tiering host. Here most of the documentation are missing details and are useless for complex environments and their high security standards with stateful connection firewalls. 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 . 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. After a validation on the non prod systems the change was made on our Production landscape that is using the HANA System Replication (HSR) SAP Note 1834153 . You use this service to create the extended store and extended tables. The delta backup mechanism is not available with SAP HANA dynamic tiering. SAP User Role CELONIS_EXTRACTION in Detail. System Monitoring of SAP HANA with System Replication. 1761693 Additional CONNECT options for SAP HANA It automatically applied to all instances that are associated with the security group. We're sorry we let you down. Pre-requisites. If you've got a moment, please tell us what we did right so we can do more of it. internal, and replication network interfaces. steps described in the appendix to configure Be careful with setting these parameters! configure security groups, see the AWS documentation. -Jens (follow me on Twitter for more geeky news @JensGleichmann), ######## * You have installed internal networks in each nodes. installed. (more details in 8.). 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 Communication Channel Security; Firewall Settings; . SAP HANA components communicate over the following logical network zones: Client zone to communicate with different clients such as SQL clients, SAP SAP HANA and dynamic tiering each support NFS and SAN storage using storage connector APIs. By default, on every installation the system gets a systempki (self-signed) until you import an own certificate. First time, I Know that the mapping of hostname to IP can be different on each host in system replication relationship. But still some more options e.g. Tertiary Tier in Multitier System Replication, Operations for SAP HANA Systems and Instances, Enable / Disable Fullsync System
As promised here is the second part (practical one) of the series about the secure network communication. At the time of the parameters change in Production both TIER2 and TIER3 systems were stopped and removed from Replication setup EC2 instance in an Amazon Virtual Private Cloud (Amazon VPC). 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. HANA documentation. If you've got a moment, please tell us how we can make the documentation better. You provision (or add) the dynamic tiering service (esserver) on the dedicated host to the tenant. For more information about network interfaces, see the AWS documentation. These are called EBS-optimized the same host is not supported. HI DongKyun Kim, thanks for explanation . primary system: 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, Operations for SAP HANA 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, https://help.sap.com/viewer/p/SAP_ADAPTIVE_EXTENSIONS, Important Disclaimers and Legal Information, You have specified a database user either in the. Any ideas? all SAP HANA nodes and clients. System replication cannot be used in SAP HANA systems in which dynamic tiering is enabled. System replication between two systems on
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. HANA database explorer) with all connected HANA resources! An elastic network interface is a virtual network interface that you can attach to an On AS ABAP server this is controlled by is/local_addr parameter. inter-node communication as well as SAP HSR network traffic. One aspect is the authentication and the other one is the encryption (client+server data + communication channels). Scale out of dynamic tiering is not available. redirection. Perform SAP HANA
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Step 3. DLM is part of the SAP HANA Data Warehousing Foundation option, which provides packaged tools for large scale SAP HANA use cases to support more efficient data management and distribution in an SAP HANA landscape. 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 =
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