When complete, test that the virtual host names can be resolved from 2. You can also encrypt the communication for HSR (HANA System replication). Post this, Installation of Dynamic Tiering License need to done via COCKPIT. 3. Pipeline End-to-End Overview. Assignment of esserver is done by below sql script: ALTER DATABASE ADD esserver [ AT [ LOCATION] [
: ] ]. 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. You can use SAP Landscape Management for
Darryl Griffiths Blog from 2014 SAP HANA SSL Security Essential The primary replicates all relevant license information to the
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. * You have installed internal networks in each nodes. Log mode
If you want to be flexible in case of changing the server (HW change / OS upgrade), you need multiple certificates connected to different hostnames. With DLM, you can model data migration rules on SAP HANA tables, and move data at specified times between high performance SAP HANA memory and a lower cost storage and processing tier. network. Find SAP product documentation, Learning Journeys, and more. The latest release version of DT is SAP HANA 2.0 SP05. The values are visible in the global.ini file of the tenant database but cannot be modified from the tenant database. This note well describes the sequence of (un)registering/(re)registering when operating replication and upgrade. HANA XSA port specification via mtaext: SAP note 2389709 - Specifying the port for SAP HANA Cockpit before installation Needed PSE's and their usage. After some more checks we identified the listeninterface and internal_hostname_resolution parameters were not updated on TIER2 and TIER3 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. Once the esserver service is assigned to a tenant database, the database, not SYSTEMDB, owns the service. SAP HANA Native Storage Extension ("NSE") is the recommended approach to implementing data tiering within an SAP HANA system. Any changes made manually or by
is deployed. For sure authorizations are also an important part but not in the context of this blog and far away from my expertise. SAP HANA dynamic tiering adds the SAP HANA dynamic tiering service (esserver) to your SAP HANA system. Since NSE is a capability of the core HANA server, using NSE eliminates the limitations of DT that you highlighted above. These steps helped resolve the issue and the System Replication monitor was now reflecting all 3 TIERS In this example, the target SAP HANA cluster would be configured with additional network 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 that the new network interfaces are created in the subnet where your SAP HANA instance Ensure that host name-to-IP-address SAP Note 1834153 . For more information, see SAP Note
Both SAP HANA and dynamic tiering hosts, including standby hosts, use storage APIs to access the devices. shipping between the primary and secondary system. global.ini -> [internal_hostname_resolution] : Starts checking the replication status share. For instance, you have 10.0.1. If you do this you configure every communication on those virtual names including the certificates! Many newer Amazon EC2 instance types such as the X1 use an optimized configuration stack and * sl -- serial line IP (slip) global.ini: Set inside the section [communication] ssl from off to systempki. # Edit Stay healthy, So I think each host, we need maintain two entries for "2. On HANA you can also configure each interface. Enables a site to serve as a system replication source site. Perform backup on primary. global.ini -> [internal_hostname_resolution] : It's a hidden feature which should be more visible for customers. Check also the saphostctrl functionality for the monitoring: 2621457 hdbconnectivity failure after upgrade to 2.0, 2629520 Error : hdbconnectivity (HDB Connectivity), Status: Error (SQLconnect not possible (no hdbuserstore entry found)) While SAP Host Agent is not working correctly Solution Manager 7.2, Managed systems maintenance guide preparing databases. Only one dynamic tiering license is allowed per SAP HANA system. Network Configuration for SAP HANA System Replication (HSR) You can configure additional network interfaces and security groups to further isolate inter-node communication as well as SAP HSR network traffic. 1. Although various materials and documents for HANA networks have been available to ease your implementations and re-configurations, you might have found it time-consuming and experienced a hard time to see a whole picture at a glance. For each server you can add an own IP label to be flexible. An overview over the processes itself can be achieved through this blog. Both SAP HANA and dynamic tiering hosts have their own dedicated storage. After the dynamic tiering component has been installed on HANA system, start with addition of worker DT host, by running hdblcm from worker DT node. So for s1host1,10.5.2.1=s2host110.4.3.1=s3host1, For s2host110.5.1.1=s1host110.4.3.1=s3host1, For s3host110.4.1.1=s1host110.4.2.1=s2host1. 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. Introduction. Thanks for the further explanation. properties files (*.ini files). 1 step instead of 4 , Alerting is not available for unauthorized users, Right click and copy the link to share this comment, With XSA 1.0.82 (begin of 2018), SAP introduced new parameters (Check note, https://blogs.sap.com/2014/01/17/configure-abap-to-hana-ssl-connection/, 1761693 Additional CONNECT options for SAP HANA, 2475246 How to configure HANA DB connections using SSL from ABAP instance, Vitaliy Rudnytskiys blog: Secure connection from HDBSQL to SAP HANA Cloud, https://blogs.sap.com/2020/04/14/secure-connection-from-hdbsql-to-sap-hana-cloud/, Import certificate to HANA Cockpit (for client communication) [part II], Import certificate to HANA resource(s) [part II], Configure clients (AS ABAP, ODBC, etc.) HANA database explorer) with all connected HANA resources! -ssltrustcert have to be added to the call. Check all connecting interfaces for it. There are some documentations available by SAP, but some of them are outdated or not matching the customer environments/needs or not all-embracing. There is already a blog about this configuration: https://blogs.sap.com/2014/01/17/configure-abap-to-hana-ssl-connection/ Dynamic tiering adds smart, disk-based extended storage to your SAP HANA database. You need at
SAP HANA System, Secondary Tier in Multitier System Replication, or
If you've got a moment, please tell us what we did right so we can do more of it. SAP HANA dynamic tiering is a native big data solution for SAP HANA. 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. all SAP HANA nodes and clients. 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. To learn You can copy the certificate of the HANA database to the application server but you dont need to (HANA on one Server Tier 2). network interfaces you will be creating. To configure your logical network for SAP HANA, follow these steps: Create new security groups to allow for isolation of client, internal I recommend this method, but you can also use the online one (xs set-sertificate) but here you have to follow more steps/options and at the end you have to restart the XSA. It differs for nearly each component which makes it pretty hard for an administrator. Extended tables behave like all other SAP HANA tables, but their data resides in the disk-based extended store. Tertiary Tier in Multitier System Replication, Operations for SAP HANA Systems and Instances, Enable / Disable Fullsync System
SAP HANA dynamic tiering is an integrated component of the SAP HANA database and cannot be operated independently from SAP HANA. You provision (or add) the dynamic tiering service (esserver) on the dedicated host to the tenant. inter-node communication as well as SAP HSR network traffic. You have installed SAP Adaptive Extensions. With an elastic network interface (referred to as If you raise the isolation level to high after the fact, the dynamic tiering service stops working. 2211663 . To learn more about this step, see Configuring Hostname Resolution for SAP HANA System Replication in the SAP These are called EBS-optimized the IP labels and no client communication has to be adjusted. # Inserted new parameters from 2300943 SAP HANA communicate over the internal network. is configured to secure SAP HSR traffic to another Availability Zone within the same Region. 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 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. the OS to properly recognize and name the Ethernet devices associated with the new Thanks a lot for sharing this , it's a excellent blog . Please refer to your browser's Help pages for instructions. 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 instances. United States. It would be difficult to share the single network for system replication. For more information, see https://help.sap.com/viewer/p/SAP_ADAPTIVE_EXTENSIONS. 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). if mappings are specified as either neighboring sites(minimum) or all hosts of own site as well as neighboring sites, an internal(separate) network is used for system replication communication. Stops checking the replication status share. Keep the tenant isolation level low on any tenant running dynamic tiering. need to specify all hosts of own site as well as neighboring sites. You can use the same procedure for every other XSA installation. ALTER SYSTEM ALTER CONFIGURATION ( global.ini, SYSTEM ) SET( customizable_functionalities, dynamic_tiering ) = true. It must have the same software version or higher. SAP HANA Network Requirements Contact Us Contact us Contact us Home 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. Import certificate to HANA Cockpit (for client communication) [, Configure clients (AS ABAP, ODBC, etc.) SAP HANA 1.0, platform edition Keywords. RFC Module. (4) site1 is repaired and joined the replication as secondary(sync to site2, site3 need unregistered from site2 and re-registered to site1). no internal interface found, listeninterface, .internal , KBA , HAN-DB , SAP HANA Database , Problem . Dynamic tiering enhances SAP HANA with large volume, warm data management capability. There are two scripts: HANA_Configuration_MiniChecks* and HANA_Security_Certificates*. License is generated on the basis of Main memory in Dynamic Tiering by choosing License type as mentioned below. Here you can reuse your current automatism for updating them. 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. site1(primary) becomes standalone and site3(dr) is required to be promoted as secondary site temporarily while site2 is being repaired/replaced in data center. 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. You may choose to manage your own preferences. -Jens (follow me on Twitter for more geeky news @JensGleichmann), ######## EC2 instance in an Amazon Virtual Private Cloud (Amazon VPC). Only set this to true if you have configured all resources with SSL. A service in this context means if you have multiple services like multiple tenants on one server running. You have assigned the roles and groups required. You have installed and configured two identical, independently-operational. SAP Note 1876398 - Network configuration for System Replication in SAP HANA SP6. Data Lifecycle Manager optimizes the memory footprint of data in SAP HANA tables by relocating data to Dynamic Tiering or HADOOP. You have verified that the log_mode parameter in the persistence section of
the same host is not supported. Questo articolo descrive come distribuire un sistema SAP HANA a disponibilit elevata in una configurazione con scalabilit orizzontale. 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! It's free to sign up and bid on jobs. Share, Unregister Secondary Tier from System Replication, Unregister System Replication Site on
when site2(secondary) is not working any longer. Updates parameters that are relevant for the HA/DR provider hook. There is already a blog post in place covering this topic. Recently we started receiving the alerts from our monitoring tool: resumption after start or recovery after failure. multiple physical network cards or virtual LANs (VLANs). Scale-out and System Replication(3 tiers). As you create each new network interface, associate it with the appropriate Prerequisites You comply all prerequisites for SAP HANA system replication. It must have a different host name, or host names in the case of
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Are relevant for the HA/DR provider hook 2.0 SP05 software version or higher alter system alter CONFIGURATION (,. Please refer to your SAP HANA SP6 installed internal networks in each nodes for. Not working any longer are two scripts: HANA_Configuration_MiniChecks * and HANA_Security_Certificates * is already a blog post place... Prerequisites you comply all Prerequisites for SAP HANA SP6 software version or higher,. S1Host1,10.5.2.1=S2Host110.4.3.1=S3Host1, for s3host110.4.1.1=s1host110.4.2.1=s2host1 system alter CONFIGURATION ( global.ini, system ) SET ( customizable_functionalities, dynamic_tiering ) =.. Or virtual LANs ( VLANs ) x27 ; s free to sign up and bid jobs... My expertise, independently-operational HANA dynamic tiering License need to specify all of...