Its purpose is to extend SAP HANA memory with a disk-centric columnar store (as opposed to the SAP HANA in-memory store). You can use the SQL script collection from note 1969700 to do this. instances. of ports used for different network zones. * The hostname in below refers to internal hostname in Part1. This is normally the public network. tables are actually preloaded there according to the information
received on the loaded tables. interfaces similar to the source environment, and ENI-3 would share a common security group. It would be difficult to share the single network for system replication. SAP HANA dynamic tiering is an integrated component of the SAP HANA database and cannot be operated independently from SAP HANA. This note well describes the sequence of (un)registering/(re)registering when operating replication and upgrade. Understood More Information SAP HANA dynamic tiering is an integrated component of the SAP HANA database and cannot be operated independently from SAP HANA. For more information, see https://help.sap.com/viewer/p/SAP_ADAPTIVE_EXTENSIONS. a distributed system. Download the relevant compatible Dynamic Tiering software from SAP Marketplace and extract it to a directory. But the, SAP app server on same machine, tries to connect to mapped external hostname and if tails of course. 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. Are you already prepared for changing the server due to hardware change / OS upgrade with a virtual hostname concept? Since quite a while SAP recommends using virtual hostnames. # Edit It must have the same number of nodes and worker hosts. There can be only one dynamic tiering worker host for theesserver process. This is necessary to start creating log backups. Dynamic tiering enhances SAP HANA with large volume, warm data management capability. You need a minimum SP level of 7.2 SP09 to use this feature. Have you already secured all communication in your HANA environment? Tertiary Tier in Multitier System Replication, Operations for SAP HANA Systems and Instances, Enable / Disable Fullsync System
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. In multiple-container systems, the system database and all tenant databases
global.ini -> [communication] -> listeninterface : .global or .internal Ensures that a log buffer is shipped to the secondary system
The host name specified here is used to verify the identity of the server instead of the host name with which the connection was established. Replication, Register Secondary Tier for System
Step 1 . A shared file system (for example, /HANA/shared) is required for installation. How you can secure your system with less effort? So, the easiest way is to use the XSA set-certificate command: Afterwards check your system with the diagnose function. Understood More Information Chat Offline. # Edit Use Secure Shell (SSH) to connect to your EC2 instance at the OS level. when site2(secondary) is not working any longer. Provisioning fails if the isolation level is high. exactly the type of article I was looking for. ISSUE: We followed the SAP note 2183363, and updated the listeninterface and internal_hostname_resolution HANA parameters on our non prod systems in a similar scaleout setup. (Storage API is required only for auto failover mechanism). Pipeline End-to-End Overview. If you plan to use storage connector APIs, you must configure the multipath.conf and global.ini files before installation. Please keep in mind to configure the correct default gateway with is/local_addr for stateful firewall connections. For details, you could have reference on the guide "How to perform How To Perform System Replication for SAP HANA". 2487639 HANA Basic How-To Series HANA and SSL MASTER KBA the global.ini file is set to normal for both systems. Find SAP product documentation, Learning Journeys, and more. About this page This is a preview of a SAP Knowledge Base Article. There are two scripts: HANA_Configuration_MiniChecks* and HANA_Security_Certificates*. To change the TLS version and the ciphers for the XSA you have to edit the xscontroller.ini. as in a separate communication channel for storage. Therfore you
You need at
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. mapping rule : system_replication_internal_ip_address=hostname, 1. In the following example, two network interfaces are attached to each SAP HANA node as well before a commit takes place on the local primary system. instances. To detect, manage, and monitor SAP HANA as a
Click more to access the full version on SAP for Me (Login required). SAP HANA System, Secondary Tier in Multitier System Replication, or
Pre-requisites. 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. Determine which format your key file has with a look into it: If it is a PKCS#12 format you have to follow this steps (there are several ways, just have a look at the openssl documentation): a) Export the keys in PKCS#12 transfer format: The HANA DB has to be online. inter-node communication as well as SAP HSR network traffic. Both SAP HANA and dynamic tiering hosts have their own dedicated storage. 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). So site1 & site3 won't meet except the case that I described. For more information, see Configuring Instances. global.ini -> [communication] -> listeninterface : .global or .internal Network for internal SAP HANA communication: 192.168.1. reason: (connection refused). Terms of use |
Data Hub) Connection. After some more checks we identified the listeninterface and internal_hostname_resolution parameters were not updated on TIER2 and TIER3 global.ini -> [internal_hostname_resolution] : Stops checking the replication status share. need not be available on the secondary system. You provision (or add) the dynamic tiering service (esserver) on the dedicated host to the tenant. In the step 5, it is possible to avoid exporting and converting the keys. Single node and System Replication(3 tiers), 3. mapping rule : internal_ip_address=hostname. 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. Which communication channels can be secured? Is it possible to switch a tenant to another systemDB without changing all of your client connections? Before drawing the architecture, I hope this blog would help to get better understanding of networks required in HANA database regardless of the complexity. We are talk about signed certificates from a trusted root-CA. In Figure 10, ENI-2 is has its own security group (not shown) to secure client traffic from inter-node communication. the same host is not supported. It must have the same system configuration in the system
So I think each host, we need maintain two entries for "2. Dynamic tiering is also supported by the Data Lifecycle Manager (DLM), an SAP HANA XS-based tool to relocate data from SAP HANA memory to alternate storage locations such as the dynamic tiering extended store, SAP HANA extension nodes, or Hadoop/Vora. the secondary system, this information is evaluated and the
It's a hidden feature which should be more visible for customers. Connection to On-Premise SAP ECC and S/4HANA. When you use SAP HANA to place hot data in SAP HANA in-memory tables, and warm data in extended tables, highest value data remains in memory, and cooler less-valuable data is saved to the extended store. 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. In HANA studio this process corresponds to esserver service. Search for jobs related to Data provisioning in sap hana or hire on the world's largest freelancing marketplace with 22m+ jobs. shipping between the primary and secondary system. Post this, Installation of Dynamic Tiering License need to done via COCKPIT. In my opinion, the described configuration is only needed below situations. Most will use it if no GUI is available (HANA studio / cockpit) or paired with hdbuserstore as script automatism (housekeeping). documentation. Separating network zones for SAP HANA is considered an AWS and SAP best practice. The last step is the activation of the System Monitoring. more about security groups, see the AWS multiple physical network cards or virtual LANs (VLANs). You add rules to each security group that allow traffic to or from its associated 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). ###########. In this example, the target SAP HANA cluster would be configured with additional network The delta backup mechanism is not available with SAP HANA dynamic tiering. system. Network and Communication Security. Network for internal SAP HANA communication between hosts at each site: 192.168.1. In this case, you are required to add additional NIC, ip address and cabling for site1-3 replication. 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. labels) and the suitable routing for a stateful connection for your firewall rules and network segmentation. 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. Thanks a lot for sharing this , it's a excellent blog . You may choose to manage your own preferences. First time, I Know that the mapping of hostname to IP can be different on each host in system replication relationship. 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 Following parameters is set after configuring internal network between hosts. resolution is working by creating entries in all applicable host files or in the Domain ENI-3 Updated the listeninterface and internal_hostname_resolution parameters for the respective TIER as they are unique for every landscape (1) site1 is broken and needs repair; System replication between two systems on
For this it may be wise to add an IP label, which means an own DNS record with name and IP, for each service. You can use SAP Landscape Management for
The BACKINT interface is available with SAP HANA dynamic tiering. The OS process for the dynamic tiering host is hdbesserver, and the service name is esserver. Both SAP HANA and dynamic tiering hosts, including standby hosts, use storage APIs to access the devices. Linux' predictable network device names aka default network was "eth0" is now still predictably used as "enp1s0" with different rule set. 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 set up system replication between identical SAP HANA systems. With an elastic network interface (referred to as I hope this little summary is helping you to understand the relations and avoid some errors and long researches. 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. United States. mapping rule : internal_ip_address=hostname. (Addition of DT worker host can be performed later). This section describes operations that are available for SAP HANA instances. Privacy |
A service in this context means if you have multiple services like multiple tenants on one server running. If you answer one of the questions negative you should wait for the second part of this series , ########### 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. , Problem About this page This is a preview of a SAP Knowledge Base Article. 2478769 Obtaining certificates with subject Alternative Name (SAN) within STRUST 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. To give context - We are using HANA SSL certificates, which are valid for 1 year and before it gets expire we need to renew it, so we want to do Monitoring to get alerts of it either by Cockpit/ Splunk or other home grown tools via Perl/any other scripting, so any one knows more about it?? must be backed up. Because site1 and site2 usually resides in the same data center but site3 is located very far in another data center. global.ini -> [system_replication_communication] -> listeninterface : .global or .internal * You have installed internal networks in each nodes. Keep the tenant isolation level low on any tenant running dynamic tiering. Refresh the page and To Be Configured would change to Properly Configured. For the section [system_replication_hostname_resolution], you can add either all hosts or neighboring sites, but I am going to add only neighboring sites in order to remove all the configuration conflicts in below examples. Below query returns the internal hostname which we will use for mapping rule. 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. can use elastic network interfaces combined with security groups to achieve this network To set it up is one task, to maintain and operate it another. * sl -- serial line IP (slip) For more information about how to attach a network interface to an EC2 (2) site2 take over the primary role; 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. Be careful with setting these parameters! To learn Figure 11: Network interfaces and security groups. We continue to fully maintain the SP05 version and deliver PL releases as necessary but there are no plans to release newer SP versions for DT. Dynamic tiering is embedded within SAP HANA operational processes, such as standby setup, backup and recovery, and system replication. SAP Real Time Extension: Solution Overview. Updates parameters that are relevant for the HA/DR provider hook. But keep in mind that jdbc_ssl parameter has no effect for Node.js applications! System replication overview Replication modes Operation modes Replication Settings I haven't seen it yet, but I will link it in this post.The hdbsql connect in this blog was just a side effect which I have tested due to script automatism when forcing ssl . Have you identified all clients establishing a connection to your HANA databases? One aspect is the authentication and the other one is the encryption (client+server data + communication channels). Activated log backup is a prerequisite to get a common sync point for log
For more information, see: Ensure that host name-to-IP-address Otherwise, please ignore this section. the OS to properly recognize and name the Ethernet devices associated with the new More and more customers are attaching importance to the topic security. To pass the connection parameters to the DBSL, use the following profile parameter: dbs/hdb/connect_property = param1, param2, ., paramN, https://help.sap.com/viewer/b3ee5778bc2e4a089d3299b82ec762a7/2.0.04/en-US/0ae2b75266df44499d8fed8035e024ad.html. 1. Step 3. You modify properties in the global.ini file to prepare resources on each tenant database to support SAP HANA dynamic tiering. Please use part one for the knowledge basics. But still some more options e.g. A separate network is used for system replication communication. The primary replicates all relevant license information to the
To configure your logical network for SAP HANA, follow these steps: Create new security groups to allow for isolation of client, internal Figure 12: Further isolation with additional ENIs and security Persistence encryption of the SAP HANA system is not available when dynamic tiering is installed. Failover nodes mount the storage as part of the failover process. systems, because this port range is used for system replication
extract the latest SAP Adaptive Extensions into this share. Though it's definitely not easy to go with so much secure setup for even an average complex landscape, hoping there will be a day when there would be a single instance for everything and hits on this blog would go sky-high , I just published mine https://blogs.sap.com/2020/04/14/secure-connection-from-hdbsql-to-sap-hana-cloud/ and now seeing yours But where you use -sslcertrust I dig deeper how to make sure HANA server authentication works from hdbsql , Great post Vitaliy! This is the preferred method to secure the system as it's done automatically and the certificates are renewed when necessary. 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). When complete, test that the virtual host names can be resolved from well as for SAP HSR, Storage zone to persist SAP HANA data in the storage infrastructure for HANA documentation. System replication cannot be used in SAP HANA systems in which dynamic tiering is enabled. Enables a site to serve as a system replication source site. Multiple interfaces => one or multiple labels (n:m). For sure authorizations are also an important part but not in the context of this blog and far away from my expertise. For each server you can add an own IP label to be flexible. 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. ALTER SYSTEM ALTER CONFIGURATION ( global.ini, SYSTEM ) SET( customizable_functionalities, dynamic_tiering ) = true. , Problem. As you may read between the lines Im not a fan of authorization concepts. SAP User Role CELONIS_EXTRACTION in Detail. For instance, third party tools like the backup tool via backint are affected. Pre-requisites. But keep in mind that jdbc_ssl parameter has no effect for Node.js applications! In particolare, la configurazione usa la replica di sistema HANA (HSR) e Pacemaker in macchine virtuali Linux (VM) di Azure Red Hat Enterprise. To use the Amazon Web Services Documentation, Javascript must be enabled. * 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. * as public network and 192.168.1. Replication, Start Check of Replication Status
Please refer to your browser's Help pages for instructions. Certificate Management in SAP HANA For scale-out deployments, configure SAP HANA inter-service communication to let Only one dynamic tiering license is allowed per SAP HANA system. The required ports must be available. Using HANA studio. Unless you are using SAPGENPSE, do not password protect the keystore file that contains the servers private key. 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. On HANA you can also configure each interface. With SAP HANA SPS 10, during installation the system sets up a PKI infrastructure used to secure the internal communication interfaces and protect the traffic between the different processes and SAP HANA hosts. This will speed up your login instead of using the openssl variant which you discribed. Chat Offline. SAP Note 1834153 . # 2021/04/26 added PIN/passphrase option for sapgenpse seclogin The XSA can be offline, but will be restarted (thanks for the hint Dennis). automatically applied to all instances that are associated with the security group. Check all connecting interfaces for it. Extended tables behave like all other SAP HANA tables, but their data resides in the disk-based extended store. The certificate wont be validated which may violate your security rules. SAP HANA Network Settings for System Replication 9. Here it is pretty simple one option is to define manually some command line options: cp /usr/sap/SID/HDB00/hostname/sec/sapsrv.pse /usr/sap/SID/HDB00/hostname/sec/sapcli.pse. SAP HANA system replication is used to address SAP HANA outage reduction due to planned maintenance, fault, and disasters. As mentioned earlier, having internal networks are essential in production system in order to get the expected response time and optimize the system performance. Legal Disclosure |
You have installed and configured two identical, independently-operational. A security group acts as a virtual firewall that controls the traffic for one or more Perform SAP HANA
SAP HANA 1.0, platform edition Keywords. Configuring SAP HANA Inter-Service Communication in the SAP HANA It's free to sign up and bid on jobs. the IP labels and no client communication has to be adjusted. If you set jdbc_ssl to true will lead to encrypt all jdbc communications (e.g. of the same security group that controls inbound and outbound network traffic for the client Darryl Griffiths Blog from 2014 SAP HANA SSL Security Essential On AS ABAP server this is controlled by is/local_addr parameter. instance, see the AWS documentation. Follow the system. (4) site1 is repaired and joined the replication as secondary(sync to site2, site3 need unregistered from site2 and re-registered to site1). Scale-out and System Replication(2 tiers), 4. Starting point: 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. You have performed a data backup or storage snapshot on the primary system. Or see our complete list of local country numbers. mapping rule : internal_ip_address=hostname. The cleanest way is the Golden middle option 2. -Jens (follow me on Twitter for more geeky news @JensGleichmann), ######## As you create each new network interface, associate it with the appropriate Scale-out and System Replication(3 tiers). Source: SAP 1.2 SolMan communication Host Agent / DAA => SolMan SLD (HTTPS) => SolMan It is now possible to deactivate the SLD and using the LMDB as leading data collection system. security group you created in step 1. The bottom line is to make site3 always attached to site2 in any cases. operations or SAP HANA processes as required. The parameter listeninterface=.global in the section [system_replication_communication] is used for system replication. The values are visible in the global.ini file of the tenant database but cannot be modified from the tenant database. Setting Up System Replication You set up system replication between identical SAP HANA systems. By default, on every installation the system gets a systempki (self-signed) until you import an own certificate. Attach the network interfaces you created to your EC2 instance where SAP HANA is Global Network # 2021/09/09 updated parameter info: is/local_addr thx @ Matthias Sander for the hint Comprehensive and complete, thanks a lot. 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 Do you have similar detailed blog for for Scale up with Redhat cluster. # 2021/04/06 Inserted possibility for multiple SAN in one request / certificate with sapgenpse Not sure up to which revision the "legacy" properties will work. If you want to force all connection to use SSL/TLS you have to set the sslenforce parameter to true (global.ini). system, your high-availability solution has to support client connection
You use this service to create the extended store and extended tables. +1-800-872-1727. Create new network interfaces from the AWS Management Console or through the AWS CLI. I just realized that the properties 'jdbc_ssl*' have been renamed to "hana_ssl" in XSA >=1.0.82. * as internal network as described below picture. SAP HANA System Target Instance. It is also important to configure the appropriate network communication routing, because per default every traffic on a Linux server goes per default over the default gateway which is by default the first interface eth0 (we will need this know how later for the certificates). 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. Actually, in a system replication configuration, the whole system, i.e. Considering the potential failover/takeover for site1 and site2, that is, site1 and site2 actually should have the same position. configure security groups, see the AWS documentation. Therefore, you are required to have 2 separate networks for system replication, one is for primary site to secondary site and another is for secondary site to tertiary site and each host in your secondary site should have an additional NIC. We are not talking about self-signed certificates. enables you to isolate the traffic required for each communication channel. documentation. Step 1. Surprisingly the TIER3 system replication status did not show up on the Replication monitor in HANA studio Name System (DNS). See Ports and Connections in the SAP HANA documentation to learn about the list The connection parameters for ODBC-based connections can also be used to configure TLS/SSL for connections from ABAP applications to SAP HANA using the SAP Database Shared Library (DBSL). SAP HANA network niping communication connection refused host port IP address , KBA , master , slave , HAN-DB , SAP HANA Database , How To About this page This is a preview of a SAP Knowledge Base Article. Therefore, I would highly recommend to stick with the default value .global in the parameter [system_replication_communication]->listeninterface. In a traditional, bare-metal setup, these different network zones are set up by having
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