The approach here is to take the MaxDB software, SIOS Protection Suite software and the MaxDB Recovery Kit and install them on two or more servers in a cluster. The SIOS MaxDB ARK (sometimes known as the SAP DB Recovery Kit) provides a mechanism for fault resilient protection for MaxDB databases in a Linux environment. SIOS also has support for SAP’s MaxDB database as part of its SIOS Protection Suite for Linux (SPS-L). LifeKeeper automatically relocates ERSv2 to Node 2 and lock table replication resumes. The cluster will remain in this state until one of the two failed nodes comes back online. LifeKeeper starts ERSv2 instance on Node 3 and lock table replication resumes At this point there is no lock table redundancy across cluster nodes.Once ENSAv2 rebuilds the lock table, it sends a connection request to the ERSv2 process and resumes lock table replication.ENSAv2 process sends connection request to ERSv2 process and obtains the backup lock table over the network.LifeKeeper starts ASCS instance on Node 3.SAP Enqueue Replication Service (ERS) in-service on Node 2.SAP ABAP Central Services instance (ASCS) in-service on Node 1.The picture shows the failover process for an SAP central services instance using SIOS Protection Suite. SIOS Application Recovery Kits (ARKs) which provide application-specific intelligence and automation for SAP HANA and a wide range of other applications, infrastructure components and cloud platforms.SIOS DataKeeper provides host-based, block-level replication, enabling customers to synchronize local storage on different cluster nodes for SAN-less clustering configuration.SIOS LifeKeeper software that manages and monitors all cluster resources and orchestrates switchover or automatic failover if needed.The SIOS Protection Suite for Linux includes three main components On top of that it also supports SAP NetWeaver application server components such as Enqueue Replication Service that is used in HA configurations. SIOS provides SAP-certified high availability for SAP S/4 HANA and supports all of the major databases that can be used for SAP, including SAP HANA, Oracle and Microsoft SQL Server. The latest version of SIOS Protection Suite includes intelligent SAP application availability tools and utilities that automate configuration, validate user input, provide application monitoring and ensure that failover automatically complies with application best-practices throughout failover processes. SIOS clusters also provide the flexibility to protect applications in any configuration (or combination) of virtual, physical, private data centers, Amazon Elastic Compute Cloud (Amazon EC2), or a hybrid form of the latter two. SIOS Protection Suite monitors the entire infrastructure stack and uniquely includes application-specific recovery kits for highly automated configuration and orchestration of failover for business-critical applications including SAP S/4HANA, SAP HANA, SAP Central Services and a variety of infrastructure services.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |