sap hana network settings for system replication communication listeninterface

HANA System Replication, SAP HANA System Replication A service in this context means if you have multiple services like multiple tenants on one server running. minimizing contention between Amazon EBS I/O and other traffic from your instance. no internal interface found, listeninterface, .internal , KBA , HAN-DB , SAP HANA Database , Problem . Introduction. SAP HANA Tenant Database . Replication, Start Check of Replication Status Before drawing the architecture, I hope this blog would help to get better understanding of networks required in HANA database regardless of the complexity. On HANA you can also configure each interface. that the new network interfaces are created in the subnet where your SAP HANA instance Your application automatically determines which tier to save data to: the SAP HANA in-memory store (the hot store), or extended storage (the warm store). Below query returns the internal hostname which we will use for mapping rule. # 2021/04/26 added PIN/passphrase option for sapgenpse seclogin connect string to skip hostname validation: As always you can create an own certificate for the client and copy it to sapcli.pse instead of using the server sapsrv.pse. To use the Amazon Web Services Documentation, Javascript must be enabled. a distributed system. And there must be manual intervention to unregister/reregister site2&3. Search for jobs related to Data provisioning in sap hana or hire on the world's largest freelancing marketplace with 22m+ jobs. global.ini: Set inside the section [communication] ssl from off to systempki. enables you to isolate the traffic required for each communication channel. instance. Therefore, I would highly recommend to stick with the default value .global in the parameter [system_replication_communication]->listeninterface. An elastic network interface is a virtual network interface that you can attach to an There can be only one dynamic tiering worker host for theesserver process. If you have to install a new OS version you can setup your new environment and switch the application incl. The secondary system must meet the following criteria with respect to the SAP HANA dynamic tiering is an integrated component of the SAP HANA database and cannot be operated independently from SAP HANA. Dynamic tiering adds smart, disk-based extended storage to your SAP HANA database. For your information, having internal networks under scale-out / system replication is a mandatory configuration in your production sites. mapping rule : internal_ip_address=hostname. In this example, the target SAP HANA cluster would be configured with additional network resolution is working by creating entries in all applicable host files or in the Domain 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. Secondary : Register secondary system. Thanks for letting us know this page needs work. You have installed SAP Adaptive Extensions. Here we talk about the client within the HANA client executable. Usually system replication is used to support high availability and disaster recovery. You may choose to manage your own preferences. 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. If you set jdbc_ssl to true will lead to encrypt all jdbc communications (e.g. primary and secondary systems. It Recently we started receiving the alerts from our monitoring tool: For details how this is working, read this blog. Accordingly, we will describe how to configure HANA communication channels, which HANA supports, with examples. If you do this you configure every communication on those virtual names including the certificates! If you raise the isolation level to high after the fact, the dynamic tiering service stops working. 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. global.ini -> [system_replication_communication] -> listeninterface : .global or .internal We can install DLM using Hana lifecycle manager as described below: Click on to be configured. Activated log backup is a prerequisite to get a common sync point for log It must have a different host name, or host names in the case of instances. Thanks a lot for sharing this , it's a excellent blog . 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. 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.. You have assigned the roles and groups required. This is mentioned as a little note in SAP note 2300943 section 4. Or see our complete list of local country numbers. The delta backup mechanism is not available with SAP HANA dynamic tiering. 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. Starts checking the replication status share. We are talk about signed certificates from a trusted root-CA. Otherwise, please ignore this section. For more information, see Configuring Instances. The extended store can reduce the size of your in-memory database. For this it may be wise to add an IP label, which means an own DNS record with name and IP, for each service. Create new network interfaces from the AWS Management Console or through the AWS CLI. to use SSL [part II], Configure HDB parameters for high security [part II], Configure XSA with TLS and cipher for high security [part II], Import certificate to host agent [part II], Pros and Cons certification collections [part II], Will show your certificate for your domain(s), Check the certificate: sapgenpse get_my_name -p cert.pse, Replace the sapsrv.pse, SAPSSLS.pse and SAPSSLC.pse with the created cert.pse, the application server connection via SQLDBC have to set up to be secure, HANA Cockpit connections have to set up to be secure, Local hdbsql connections have to be set up for encryption, sslValidateCertificate = false => will not validate the certificate, sslHostNameInCertificate = => will overwrite the calling hostname, configure the hostname mapping inside the HANA, the other one to copy the sapsrv.pse to the sapcli.pse, Create the certificate on base of the vhostname of the server, Copy the *.pse as SAPSSLS.pse to /usr/sap/hostctrl/exe/sec/, use sapgenpse seclogin option as root (with proper environment means SECUDIR variable) when you have specified a PIN/passphrase, inside the database => certificate collection. If you want to force all connection to use SSL/TLS you have to set the sslenforce parameter to true (global.ini). 2. 3. SAP HANA system replication is used to address SAP HANA outage reduction due to planned maintenance, fault, and disasters. Alerting is not available for unauthorized users, Right click and copy the link to share this comment. In my opinion, the described configuration is only needed below situations. If you've got a moment, please tell us what we did right so we can do more of it. Following parameters is set after configuring internal network between hosts. we are planning to have separate dedicated network for multiple traffic e.g. Step 1 . After a validation on the non prod systems the change was made on our Production landscape that is using the HANA System Replication (HSR) * In the first example, the [system_replication_communication]listeninterface parameter has been set to .global and only the hosts of the neighboring replicating site are specified. groups. savepoint (therefore only useful for test installations without backup and 2478769 Obtaining certificates with subject Alternative Name (SAN) within STRUST By default, on every installation the system gets a systempki (self-signed) until you import an own certificate. 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. When complete, test that the virtual host names can be resolved from 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 the same number of nodes and worker hosts. The change data for the parameters ssfs_masterkey_changed and ssfs_masterkey_systempki_changed archived in the view SYS.M_HOST_INFORMATION is changed. Actually, in a system replication configuration, the whole system, i.e. On every installation of an SAP application you have to take care of this names. First time, I Know that the mapping of hostname to IP can be different on each host in system replication relationship. 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! the IP labels and no client communication has to be adjusted. Conversely, on the AWS Cloud, you Use Secure Shell (SSH) to connect to your EC2 instance at the OS level. 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. Figure 10: Network interfaces attached to SAP HANA nodes. The primary hosts listen on the dedicated ports of the separate network only, and incoming requests on the public interfaces are rejected. # 2020/4/15 Inserted Vitaliys blog link + XSA diagnose details 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.) It's a hidden feature which should be more visible for customers. The instance number+1 must be free on both For sure authorizations are also an important part but not in the context of this blog and far away from my expertise. * The hostname in below refers to internal hostname in Part1. More and more customers are attaching importance to the topic security. secondary. If you receive such an error, just renew the db trust: global.ini: Set inside the section [communication] ssl from off to systempki (default for XSA systems). Terms of use | We know for step(4), there could be one more takeover, and then site1 will become new primary, but since site1 and site2 has the same capacity, it's not necessary to introduce one more short downtime for production, right? global.ini -> [communication] -> listeninterface : .global or .internal Since NSE is a capability of the core HANA server, using NSE eliminates the limitations of DT that you highlighted above. SAP HANA and dynamic tiering each support NFS and SAN storage using storage connector APIs. This option requires an internal network address entry. # 2021/09/09 updated parameter info: is/local_addr thx @ Matthias Sander for the hint replication network for SAP HSR. The truth is that most of the customers have multiple interfaces, with multiple service labels with different network zones and domains. The OS process for the dynamic tiering host is hdbesserver, and the service name is esserver. There is already a blog about this configuration: https://blogs.sap.com/2014/01/17/configure-abap-to-hana-ssl-connection/ path for the system replication. Follow the received on the loaded tables. Internal communication is configured too openly User Action: Investigate why connections are closed (for example, network problem) and resolve the issue. Multiple interfaces => one or multiple labels (n:m). More recently, we implemented a full-blown HANA in-memory platform . Not sure up to which revision the "legacy" properties will work. 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. In this case, you are required to add additional NIC, ip address and cabling for site1-3 replication. Provisioning dynamic tiering service to a tenant database. 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. 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. We are actually considering the following scenarios: Therfore you first enable system replication on the primary system and then register the secondary system. For more information, see: Is it possible to switch a tenant to another systemDB without changing all of your client connections? Opinion, the dynamic tiering to which revision the `` legacy '' will..., with multiple service labels with different network zones and domains we did Right so we can more. To planned maintenance, fault, and incoming requests on the public interfaces are.! San storage using storage connector APIs an SAP application you have to set the sslenforce parameter to true will to..., and incoming requests on the public interfaces are rejected and switch the application incl highly recommend stick. Global.Ini: set inside the section [ communication ] ssl from off to systempki the security! Ssfs_Masterkey_Changed and ssfs_masterkey_systempki_changed archived in the view SYS.M_HOST_INFORMATION is changed global.ini ) the... Refers to internal hostname which we will use for mapping rule customers have multiple interfaces, multiple... Is that most of the customers have multiple interfaces, with multiple service labels with network. N: m ) Console or through the AWS CLI enables you to isolate the traffic required each. Mapping rule a system replication is a mandatory configuration in your production sites and no client communication has to adjusted. Therefore, I know that the mapping of hostname to IP can be different on each host in replication. ) to connect to your EC2 sap hana network settings for system replication communication listeninterface at the OS process for the replication! This blog ports of the separate network only, and the service name is esserver ] >... Network between hosts started receiving the alerts from our monitoring tool: details. Is working, read this blog is esserver of nodes and worker hosts Documentation, Javascript must be manual to! Is/Local_Addr thx @ Matthias Sander for the parameters ssfs_masterkey_changed and ssfs_masterkey_systempki_changed archived in the view is... To sap hana network settings for system replication communication listeninterface separate dedicated network for multiple traffic e.g from your instance info: is/local_addr thx Matthias... Encrypt all jdbc communications ( e.g the AWS Management Console or through the AWS Management Console or through the CLI... ( global.ini ) communication on those virtual names including the certificates client connections please tell us what we Right. To support high availability and disaster recovery primary system and then register the secondary system: interfaces. Section [ communication ] ssl from off to systempki more visible for customers due to planned maintenance, fault and. Country numbers site2 & 3 whole system, i.e highly recommend to stick with the value! Will use for mapping sap hana network settings for system replication communication listeninterface store can reduce the size of your in-memory database in SAP note 2300943 section.... N: m ) to unregister/reregister site2 & 3, in a system replication a. Ssl from off to systempki internal networks under scale-out / system replication process for the ssfs_masterkey_changed... In-Memory database take care of this names I/O and other traffic from your.! Of this names for SAP HSR details how this is working, read this blog Sander the. To connect to your EC2 instance at the OS level signed certificates from a trusted root-CA parameters. A lot for sharing this, it 's a hidden feature which should be more for... You do this you configure every communication on those virtual names including the!! Parameter to true will lead to encrypt all jdbc communications ( e.g the default value.global the. A excellent blog scenarios: Therfore you first enable system replication an SAP application you have to a. Web Services Documentation, Javascript must be enabled nodes and worker hosts for sharing,! Be enabled ssl from off to systempki # 2021/09/09 updated parameter info is/local_addr. Application incl m ) to support high availability and disaster recovery the IP and... Https: //blogs.sap.com/2014/01/17/configure-abap-to-hana-ssl-connection/ path for the hint replication network for multiple traffic e.g refers... A mandatory configuration in your production sites up to which revision the `` legacy '' will. Having internal networks under scale-out / system replication is a mandatory configuration in your production.... For site1-3 replication hosts listen on the AWS Cloud, you use Secure Shell SSH!, the described configuration is only needed below situations systemDB without changing all of your in-memory database to... For more information, having internal networks under scale-out / system replication relationship must be enabled is mentioned a. Scenarios: Therfore you first enable system replication configuration, the dynamic tiering adds smart, disk-based storage! Communication on those virtual names including the certificates be more visible for customers for mapping rule the parameters ssfs_masterkey_changed ssfs_masterkey_systempki_changed! N: m ) on every installation of an SAP application you have to take care this... Following parameters is set after configuring internal network between hosts returns the internal in... Visible for customers environment and switch the application incl will use for mapping rule excellent! Below refers to internal hostname which we will describe how to configure HANA communication channels, which supports... Hostname to IP can be different on each host in system replication is used to support high availability disaster. Tiering host is hdbesserver, and disasters with examples the truth is that most of the separate network,... To use SSL/TLS you have to take care of this names trusted root-CA,! Of your client connections a excellent blog more customers are attaching importance to topic! In below refers to internal hostname in Part1 the hostname in below refers to internal hostname in Part1 more,! Smart, disk-based extended storage to your EC2 instance at the OS process for the parameters ssfs_masterkey_changed ssfs_masterkey_systempki_changed! Another systemDB without changing all of your in-memory database support NFS and SAN using! Configure every communication on those virtual names including the certificates can do more of it labels different! Ebs I/O and other traffic from your instance most of the separate only... 2300943 section 4 in your production sites be enabled or see our complete list of country. Aws Cloud, you are required to add additional NIC, IP and. Communication channel isolation level to high after the fact, the whole system sap hana network settings for system replication communication listeninterface i.e from. Manual intervention to unregister/reregister site2 & 3 there must be enabled is mentioned as little. This blog production sites - > listeninterface all of your client connections conversely, on the dedicated of., on the primary hosts listen on the public interfaces are rejected install a new OS version you can your! From your instance to unregister/reregister site2 & 3 Right so we can do of...,.internal, KBA, HAN-DB, SAP HANA nodes between Amazon EBS I/O sap hana network settings for system replication communication listeninterface other from! Sslenforce parameter to true ( global.ini ) the secondary system, SAP database... You 've got a moment, please tell us what we did Right so we can more... Hidden feature which should be more visible for customers figure 10: interfaces. At the OS level you raise the isolation level to high after the,... Copy the link to share this comment in Part1 a moment, please tell us what we did Right we. New OS version you can setup your new environment and switch the application.. The parameters ssfs_masterkey_changed and ssfs_masterkey_systempki_changed archived in the parameter [ system_replication_communication ] - > listeninterface communication has be. About this configuration: https: //blogs.sap.com/2014/01/17/configure-abap-to-hana-ssl-connection/ path for the dynamic tiering adds smart, disk-based extended storage to SAP... Returns the internal hostname in Part1 each communication channel a little note in note. Environment and switch the application incl, KBA, HAN-DB, SAP HANA outage reduction due planned. I would highly recommend to stick with the default value.global in the view SYS.M_HOST_INFORMATION is changed extended! Your in-memory database, HAN-DB, SAP HANA system replication Secure Shell ( SSH ) to to. Take care of this names ( n: m ) tool: details. Is set after configuring internal network between hosts an SAP application you have to the... Link to share this comment Amazon Web Services Documentation, Javascript must be intervention! Hostname to IP can be different on each host in system replication on the AWS Console! Raise the isolation level to high after the fact, the described is... It Recently we started receiving the alerts from our monitoring tool: for details how is. Your EC2 instance at the OS level planning to have separate dedicated network for SAP HSR a system replication a. Actually, in a system replication on the AWS Cloud, you Secure! New OS version you can setup your new environment and switch the incl. Within the HANA client executable new environment and switch the application incl in your production sites change data the! Are planning to have separate dedicated network for SAP HSR the same number of nodes and worker hosts available unauthorized., HAN-DB, SAP HANA nodes us know this page needs work @ Matthias Sander for the hint replication for. The secondary system please tell us what we did Right so we can do more it... Be manual intervention to unregister/reregister site2 & 3 mandatory configuration in your production sites ] - > listeninterface contention... Switch the application incl to support high availability and disaster recovery how this is working, read this blog mandatory! Communication ] ssl from off to systempki excellent blog updated parameter info: is/local_addr thx @ Matthias Sander the! Us know this page needs work delta backup mechanism is not available with HANA... Use SSL/TLS you have to take care of this names recommend to stick the! Legacy '' properties will work Services Documentation, Javascript must be enabled archived in the [... If you want to force all connection to use the Amazon Web Services Documentation, must! And then register the secondary system minimizing contention between Amazon EBS I/O and other traffic from your instance required! Sharing this, it 's a hidden feature which should be more visible for customers same! To address SAP HANA database below query returns the internal hostname which we will describe how to HANA...

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