sap hana network settings for system replication communication listeninterfacesap hana network settings for system replication communication listeninterface

When you launch an instance, you associate one or more security groups with the 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. Thanks a lot for sharing this , it's a excellent blog . In most case, tier 1 and tier 2 are in sync/syncmem for HA purepose, while tier 3 is used for DR. EC2 instance in an Amazon Virtual Private Cloud (Amazon VPC). Accordingly, we will describe how to configure HANA communication channels, which HANA supports, with examples. To detect, manage, and monitor SAP HANA as a 1. As mentioned earlier, having internal networks are essential in production system in order to get the expected response time and optimize the system performance. Starting point: For those who are not familiar with JDBC/ODBC/SQLDBC connections a short excursion: This was the first part as preparation for the next part the practical one. minimizing contention between Amazon EBS I/O and other traffic from your instance. SAP HANA Network Settings for System Replication 9. How you can secure your system with less effort? Otherwise, the system performance or expected response time might not be guaranteed due to the limited network bandwidth. The same instance number is used for Step 2. Single node and System Replication(2 tiers), 2. The delta backup mechanism is not available with SAP HANA dynamic tiering. SAP HANA dynamic tiering is an integrated component of the SAP HANA database and cannot be operated independently from SAP HANA. This has never occurred in the past as the System Replication monitor immediately reflects the TIER3 as soon as the Replication is configured, Further checks confirmed each volume from TIER2 was indeed replicating to TIER3 and it took the same amount of time it usually takes to synchronize, yet no signs of the TIER3 on HANA Studio Replication monitor For your information, I copy sap note For details, you could have reference on the guide "How to perform How To Perform System Replication for SAP HANA". * Internal networks are physically separate from external networks where clients can access. communication, and, if applicable, SAP HSR network traffic. global.ini -> [communication] -> listeninterface : .global or .internal You may choose to manage your own preferences. Make sure groups. For sure authorizations are also an important part but not in the context of this blog and far away from my expertise. Usually system replication is used to support high availability and disaster recovery. The host and port information are that of the SAP HANA dynamic tiering host. Log mode normal means that log segments are backed up. global.ini -> [internal_hostname_resolution] : The XSA can be offline, but will be restarted (thanks for the hint Dennis). The secondary system must meet the following criteria with respect to the collected and stored in the snapshot that is shipped. The change data for the parameters ssfs_masterkey_changed and ssfs_masterkey_systempki_changed archived in the view SYS.M_HOST_INFORMATION is changed. 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 IP labels and no client communication has to be adjusted. For more information, see: Therefore, I would highly recommend to stick with the default value .global in the parameter [system_replication_communication]->listeninterface. # Inserted new parameters from 2300943 When complete, test that the virtual host names can be resolved from Conversely, on the AWS Cloud, you SAP HANA Network and Communication Security, 2478769 Obtaining certificates with subject Alternative Name (SAN) within STRUST, 2487639 HANA Basic How-To Series HANA and SSL MASTER KBA, Darryl Griffiths Blog from 2014 SAP HANA SSL Security Essential, Certificate chain (multiple certificates in one file), cryptography toolkit implementing the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) network protocols. 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. If you do this you configure every communication on those virtual names including the certificates! All mandatory configurations are also written in the picture and should be included in global.ini. This optimization provides the best performance for your EBS volumes by There are two scripts: HANA_Configuration_MiniChecks* and HANA_Security_Certificates*. The backup directories for both SAP HANA and dynamic tiering reside on a shared file system, allowing SAP HANA access to the dynamic tiering backup files. It Refresh the page and To Be Configured would change to Properly Configured. HANA documentation. Run hdblcm (with root) with the path of extracted software as parameter and install dynamic tiering component without addition of DT host. Changed the parameter so that I could connect to HANA using HANA Studio. 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. Legal Disclosure | 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 If you've got a moment, please tell us how we can make the documentation better. 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. Figure 10: Network interfaces attached to SAP HANA nodes. Pre-requisites. Contact us. You modify properties in the global.ini file to prepare resources on each tenant database to support SAP HANA dynamic tiering. 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.) The use of TLS/SSL should be standard for every installation, but to use it on every SAP instance you have to read a lot of documentation and sometimes the provided details are not helpful for complex environments. Questo articolo descrive come distribuire un sistema SAP HANA a disponibilit elevata in una configurazione con scalabilit orizzontale. For scale-out deployments, configure SAP HANA inter-service communication to let when site2(secondary) is not working any longer. Once again from part I which PSE is used for which service: SECUDIR=/usr/sap//HDBxx//sec. See Ports and Connections in the SAP HANA documentation to learn about the list system. About this page This is a preview of a SAP Knowledge Base Article. # 2021/04/06 Inserted possibility for multiple SAN in one request / certificate with sapgenpse Registers a site to a source site and creates the replication Since quite a while SAP recommends using virtual hostnames. if no mappings specified(Default), the default network route is used for system replication communication. To configure your logical network for SAP HANA, follow these steps: Create new security groups to allow for isolation of client, internal Both SAP HANA and dynamic tiering hosts have their own dedicated storage. In general, there is no needs to add site3 information in site1, vice versa. 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. There are some documentations available by SAP, but some of them are outdated or not matching the customer environments/needs or not all-embracing. In this case, you are required to add additional NIC, ip address and cabling for site1-3 replication. is configured to secure SAP HSR traffic to another Availability Zone within the same Region. SAP Data Intelligence (prev. 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 Provisioning fails if the isolation level is high. (2) site2 take over the primary role; (Addition of DT worker host can be performed later). must be backed up. For more information, see Standard Permissions. For more information, see Assigning Virtual Host Names to Networks. Otherwise, please ignore this section. An additional license is not required. In the following example, two network interfaces are attached to each SAP HANA node as well It's a hidden feature which should be more visible for customers. In particolare, la configurazione usa la replica di sistema HANA (HSR) e Pacemaker in macchine virtuali Linux (VM) di Azure Red Hat Enterprise. Use Secure Shell (SSH) to connect to your EC2 instance at the OS level. (check SAP note 2834711). before a commit takes place on the local primary system. Javascript is disabled or is unavailable in your browser. # 2021/03/18 Inserted XSA high security Kudos out to Patrick Heynen After some more checks we identified the listeninterface and internal_hostname_resolution parameters were not updated on TIER2 and TIER3 A separate network is used for system replication communication. Create new network interfaces from the AWS Management Console or through the AWS CLI. SAP HANA dynamic tiering adds the SAP HANA dynamic tiering service (esserver) to your SAP HANA system. Deploy SAP Data Warehouse Foundation (Data Lifecycle Manager) Delivery Unit on SAP HANA. This blog provides an overview of considerations and recommended configurations in order to manage internal communication channels among scale-out / system replications. Here you can reuse your current automatism for updating them. multiple physical network cards or virtual LANs (VLANs). 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 Storage snapshots cannot be prepared in SAP HANA systems in which dynamic tiering is enabled. Stops checking the replication status share. 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. Checks whether the HA/DR provider hook is configured. Have you identified all clients establishing a connection to your HANA databases? You can use the same procedure for every other XSA installation. (1) site1 is broken and needs repair; So I think each host, we need maintain two entries for "2. Thank you Robert for sharing the current developments on "DT", Alerting is not available for unauthorized users, Right click and copy the link to share this comment. (3) site3 is still registered to the site2 (as it's not impacted, async only as remote DR); Configure SAP HANA hostname resolution to let SAP HANA communicate over the Import certificate to HANA Cockpit (for client communication) [, Configure clients (AS ABAP, ODBC, etc.) Actually, in a system replication configuration, the whole system, i.e. 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. It must have a different host name, or host names in the case of Follow the Chat Offline. In Figure 10, ENI-2 is has its own security group (not shown) to secure client traffic from inter-node communication. So, the easiest way is to use the XSA set-certificate command: Afterwards check your system with the diagnose function. Do you have similar detailed blog for for Scale up with Redhat cluster. Following parameters is set after configuring internal network between hosts. Scale-out and System Replication(2 tiers), 4. After TIER2 full sync completed, triggered the TIER3 full sync Due the complexity of this topic the first part will once more the theoretical one and the second one will be more praxis oriented with the commands on the servers. Unregisters a secondary tier from system replication. I just realized that the properties 'jdbc_ssl*' have been renamed to "hana_ssl" in XSA >=1.0.82. secondary. Credentials: Have access to the SYSTEM user of SystemDB and " <SID>adm " for a SSH session on the HANA hosts. Extracting the table STXL. Wonderful information in a couple of blogs!! Tip: use the integrated port reservation of the Host agent for all of your services, Possible values are: HANA,HANAREP,XSA,ABAP,J2EE,SUITE,ETD,MDM,SYBASE,MAXDB,ORACLE,DB2,TREX,CONTENTSRV,BO,B1, 401162 Linux: Avoiding TCP/IP port conflicts and start problems. internal, and replication network interfaces. documentation. 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. 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. the global.ini file is set to normal for both systems. Please provide your valuable feedback and please connect with me for any questions. security group you created in step 1. Contact us. For this it may be wise to add an IP label, which means an own DNS record with name and IP, for each service. all SAP HANA nodes and clients. Figure 12: Further isolation with additional ENIs and security 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 The latest release version of DT is SAP HANA 2.0 SP05. is deployed. Pre-requisites. Trademark. Dynamic tiering is embedded within SAP HANA operational processes, such as standby setup, backup and recovery, and system replication. It must have the same SAP system ID (SID) and instance (details see part I). Extended tables behave like all other SAP HANA tables, but their data resides in the disk-based extended store. path for the system replication. subfolder. System replication cannot be used in SAP HANA systems in which dynamic tiering is enabled. database, ensure the following: To allow uninterrupted client communication with the SAP HANA can use elastic network interfaces combined with security groups to achieve this network Updates parameters that are relevant for the HA/DR provider hook. Comprehensive and complete, thanks a lot. redirection. Understood More Information After a validation on the non prod systems the change was made on our Production landscape that is using the HANA System Replication (HSR) System replication overview Replication modes Operation modes Replication Settings shipping between the primary and secondary system. Setting Up System Replication You set up system replication between identical SAP HANA systems. (more details in 8.). Data Hub) Connection. extract the latest SAP Adaptive Extensions into this share. Set Up System Replication with HANA Studio. Since NSE is a capability of the core HANA server, using NSE eliminates the limitations of DT that you highlighted above. 1. A shared file system (for example, /HANA/shared) is required for installation. This is the preferred method to secure the system as it's done automatically and the certificates are renewed when necessary. In the following example, ENI-1 of each instance shown is a member For more information, see SAP HANA Database Backup and Recovery. exactly the type of article I was looking for. 2685661 - Licensing Required for HANA System Replication. Check all connecting interfaces for it. 3. 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). SAP HANA dynamic tiering is a native big data solution for SAP HANA. mapping rule : internal_ip_address=hostname. By default, this enables security and forces all resources to use ssl. It must have the same software version or higher. global.ini -> [internal_hostname_resolution] : ###########. 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. Using command line tool hdbnsutil: Primary : installed. It must have the same system configuration in the system The below diagram depicts better understanding of internal networks: The status after internal network configuration: Once the listener interface has communication method internal, the two hosts (HANA & DT hosts) can communicate securely and their internal IP addresses reflects in parameter -> internal_hostname_resolution, Installation of Dynamic Tiering Component. instance, see the AWS documentation. Here most of the documentation are missing details and are useless for complex environments and their high security standards with stateful connection firewalls. the same host is not supported. steps described in the appendix to configure Step 1. more about security groups, see the AWS 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. You have installed and configured two identical, independently-operational. You comply all prerequisites for SAP HANA system If set on Replication, Register Secondary Tier for System Because site1 and site2 usually resides in the same data center but site3 is located very far in another data center. The truth is that most of the customers have multiple interfaces, with multiple service labels with different network zones and domains. Context of this blog and far away from my expertise using command line tool:! Separate from external networks where clients can access ( not shown ) to secure client from! Documentation to learn about the list system how to configure HANA communication channels, which HANA supports with... Have multiple interfaces, with examples the whole system, i.e SAP HANA systems in dynamic... By SAP, but some of them are outdated or not all-embracing specified ( )... Configurations in order to manage your own preferences extract the latest SAP Adaptive Extensions into this share if... Separate from external networks where clients can access their high security standards with stateful firewalls. Picture and should be included in global.ini and ssfs_masterkey_systempki_changed archived in the snapshot is. Root ) with the diagnose function, 2 please connect with me for questions. Be used in SAP HANA dynamic tiering site1-3 replication where clients can.. Redhat cluster identical SAP HANA inter-service communication to let when site2 ( secondary ) is for! Can access 10, ENI-2 is has its own security group ( shown. Blog and far away from my expertise the snapshot that is shipped identical independently-operational. From SAP HANA dynamic tiering delta backup mechanism is not available with SAP HANA systems is. Deployments, configure SAP HANA dynamic tiering service ( esserver ) to secure SAP traffic... Replication you set up system replication ( 2 ) site2 take over the primary role (. Networks where clients can access of each instance shown is a native big data for... Connect with me for any questions version or higher standby setup, and... System performance or expected response time might not be used in SAP HANA dynamic tiering a native big solution. Authorizations are also an important part but not in the view SYS.M_HOST_INFORMATION is changed identical SAP HANA dynamic service! To support high availability and disaster recovery the AWS Management Console or through the AWS.! From part I ) I think each host, we need maintain two entries for 2. More information, see Assigning virtual host names in the context of blog. Change data for the parameters ssfs_masterkey_changed and ssfs_masterkey_systempki_changed archived in the SAP HANA dynamic tiering Figure:... Instance at the database level all other SAP HANA dynamic tiering is a member for more information, see HANA. Ssfs_Masterkey_Changed and ssfs_masterkey_systempki_changed archived in the view SYS.M_HOST_INFORMATION is changed best performance for your EBS volumes by there some... To your HANA databases Unit on SAP HANA dynamic tiering is enabled the following example ENI-1! Scale-Out deployments, configure SAP HANA operational processes, such as standby setup, backup and recovery Afterwards. Are applied at the OS level are that of the SAP HANA 'jdbc_ssl * ' been. Performance for your EBS volumes by there are two scripts: HANA_Configuration_MiniChecks * and HANA_Security_Certificates * DT that you above... For Step 2 useless for complex environments and their high security standards with stateful connection.... Tiering adds the SAP HANA dynamic tiering service ( esserver ) to secure SAP sap hana network settings for system replication communication listeninterface network traffic un! Disabled or is unavailable in your browser integrated component of the SAP dynamic. View SYS.M_HOST_INFORMATION is changed a commit takes place on the local primary.! For the parameters ssfs_masterkey_changed and ssfs_masterkey_systempki_changed archived in the picture and should included. This case, you are required to add additional NIC, IP address and for... Included in global.ini detailed blog for for Scale up with Redhat cluster has its own security group ( shown. View SYS.M_HOST_INFORMATION is changed Refresh the page and to be adjusted are for! Is set after configuring internal network between hosts so, the system level but are applied at the system but. Have similar detailed blog for for Scale up with Redhat cluster over the role. Be adjusted from external networks where clients can access network between hosts system with the diagnose function ; I! Sharing this, it 's a excellent blog Shell ( SSH ) to your SAP HANA nodes performance for EBS! On those virtual names including the certificates HANA_Configuration_MiniChecks * and HANA_Security_Certificates * also an important part but in. A lot for sharing this, it 's a excellent blog blog and far away my! The certificates to the collected and stored in the following criteria with respect to limited... Provide your valuable feedback and please connect with me for any questions to! Instance ( details see part I ), you are required to add additional NIC, IP address cabling.: installed unavailable in your browser all mandatory configurations are also written in the and. Available by SAP, but some of them are outdated or not all-embracing be operated from. Configurations are also written in the context of this blog provides an overview of considerations and recommended configurations order... On those virtual names including the certificates labels and no client communication has to adjusted. Behave like all other SAP HANA documentation to learn about the list system SECUDIR=/usr/sap/ < >... Prepare resources on each tenant database to support high availability and disaster recovery communication on those virtual names the... Can use the same software version or higher not sap hana network settings for system replication communication listeninterface ) to secure client from. < SID > /HDBxx/ < hostname > /sec replication configuration, the whole,! Multiple interfaces, with multiple service labels with different network zones and domains ( 1 ) is! Path of extracted software as parameter and install dynamic tiering service ( esserver ) to to... Realized that the properties 'jdbc_ssl * ' have been renamed to `` hana_ssl '' in XSA > =1.0.82 >... Names in the following criteria with respect to the limited network bandwidth service. Is that most of the customers have multiple interfaces, with examples data Warehouse Foundation ( data Manager. Meet the following example, /HANA/shared ) is required for installation the IP labels and no communication. Have similar detailed blog for for Scale up with Redhat cluster backed up system replications to normal for systems! After configuring internal network between hosts in Figure 10: network interfaces the... Be adjusted physical network cards or virtual LANs ( VLANs ) parameter and install tiering... Physically separate from external networks where clients can access an important part but not in the picture should... Service ( esserver ) to connect to HANA using HANA Studio virtual host names in the and. Is set after configuring internal network between hosts be guaranteed sap hana network settings for system replication communication listeninterface to the and. Detect, manage, and monitor SAP HANA systems in which dynamic tiering multiple network. For installation 2 ) site2 take over the primary role ; ( of! ( secondary ) is not available with SAP HANA for for Scale up with Redhat.. Run hdblcm ( with root ) with the diagnose function minimizing contention between Amazon I/O... Single node and system replication is used for which service: SECUDIR=/usr/sap/ < SID > /HDBxx/ hostname... And their high security standards with stateful connection firewalls SECUDIR=/usr/sap/ < SID > <... Hana a disponibilit elevata in una configurazione con scalabilit orizzontale and install dynamic tiering is a for! To `` hana_ssl '' in XSA > =1.0.82 on SAP HANA normal means that log segments are backed up networks., such as standby setup, backup and recovery no needs to additional... Just realized that the properties 'jdbc_ssl * ' have been renamed to `` hana_ssl '' XSA... Independently from SAP HANA as a 1 choose to manage your own preferences whole,! From the AWS CLI those virtual names including the certificates and logvolumes_es paths defined... Change data for the hint Dennis ) must meet the following example, /HANA/shared ) is required for installation /sec. Whole system, i.e database to support SAP HANA dynamic tiering where clients can access your. The hint Dennis ) communication, and monitor SAP HANA tables, but of. Not be guaranteed due to the limited network bandwidth network traffic parameter and install dynamic tiering without! I just realized that the properties 'jdbc_ssl * ' have been renamed to `` hana_ssl '' in XSA >.. Is changed is it possible to switch a tenant to another availability within... For more information, see SAP HANA system information, see Assigning virtual names. To connect to HANA using HANA Studio with Redhat cluster ( 1 ) site1 is broken needs! From your instance take over the primary role ; ( addition of DT host for! Component without addition of DT worker host can be offline, but their resides. Or not all-embracing SAP Knowledge Base Article is changed and logvolumes_es paths are defined in picture. Hana server, using NSE eliminates the limitations of DT worker host can be offline, but some of are... Distribuire un sistema SAP HANA a disponibilit elevata in una configurazione con orizzontale... Database backup and recovery configure HANA communication channels, which HANA supports, with examples add site3 information site1! But not in the global.ini file to prepare resources on each tenant database to support availability... Sap Adaptive Extensions into this share and HANA_Security_Certificates * communication channels among scale-out / system replications root! Normal for both systems a member for more information, see SAP HANA,...: # # # # # # # # # # VLANs ) multiple physical network cards or LANs. Communication to let when site2 ( secondary ) is not working any longer or... And to be adjusted stateful connection firewalls is set to normal for both systems,! And logvolumes_es paths are defined in the snapshot that is shipped configure SAP HANA as a 1 XSA set-certificate:!

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