Written by Peter Lees, Chief Technologist, SUSE Asia Pacific & Japan.
What does a move to SAP HANA mean for your infrastructure?
SAP’s HANA database and business applications offer a powerful path to increased efficiency and better business intelligence, but SAP’s software products are only part of the solution. Your SAP environment is built on top of a ‘core set’. Or another way of saying it, your SAP environment is your ‘new home build’, and the core set is “the foundations for the new home”. Consequently, to get the best out of your transition to SAP HANA, you must prepare a versatile, well-integrated infrastructure that includes operating systems, virtualisation, orchestration, and management components.
The starting point for your SAP core infrastructure is Linux because SAP HANA only runs on Linux. Choose an open-source vendor with a proven track record for great SAP support and take a close look at the surrounding landscape. You need an infrastructure that supports the full range of SAP applications and SAP HANA features and leaves room for future expansion and evolution.
When you build out your core infrastructure, particularly for SAP HANA, look for a solution that addresses these critical needs:
- Software-defined Infrastructure
- Lifecycle Management
- High Availability
- Advanced Data Tools
- Strong Affinity with SAP
The SAP business suite is designed to adapt to changes within your organisation. SAP applications work best in a self-managing, self-healing environment that minimises manual intervention.
Software-defined infrastructure (SDI) is a collection of technologies emphasising the fluidity of the software environment. The goal is a system where the software operates independently of the hardware, adapting to changing conditions with the minimal human touch.
Another goal of SDI is to reduce system downtime; service interruptions can cause missed opportunities and data loss issues. SAP designs many of their tools for continuous operation. You should design your core infrastructure for the fluidity and uptime emphasis embodied in SDI.
SAP designs its tools for continuous operation, and your core infrastructure should be designed that way too.
The rapid adoption of cloud and application containerisation technologies reflects a business desire for flexibility at all levels – financial, operational and technical. Whether you use these on-premises or “as a service” from a public cloud vendor, it is their automation and orchestration capabilities that keep you competitive, by enabling infrastructure to respond dynamically to changing needs.
Of course, SAP software can use the cloud as infrastructure. With solutions such as HANA Enterprise Cloud and the SAP Cloud Platform, their emphasis now is on enabling fast, flexible service delivery and as-a-service models for customers. Increasingly, everything is software-defined.
Using a single, integrated tool can simplify managing the full lifecycle of applications, from testing, deployment, configuration, and upgrade. SAP provides the product lifecycle management (PLM) tool for managing the lifecycle of SAP applications and components. Select a solution that applies the same lifecycle philosophy to your core infrastructure. Automating infrastructure management minimises overhead, maximises control, and can help ensure audit-ready compliance for SAP systems. Look for lifecycle management tools that can embrace your entire enterprise Linux fleet.
Downtime can mean lost revenue and productivity. SAP applications are designed for continuous operation, but built-in high availability features won’t help if the infrastructure doesn’t offer similar protection. A well-designed core infrastructure integrates SAP HANA failover and recovery capabilities with co-designed OS-level high availability tools.
This support should include early recognition for primary system failures, automated switching from primary to secondary systems, and features that support upgrades – even for complex clusters.
As with databases, rollback changes quickly and easily if something goes wrong and is far preferable to restoring from backups. Be sure your digital core provides a means for system rollback.
Advanced Data Tools
The primary purpose of the SAP business application suite is to collect, manage and analyse data to generate insights. The operating system at the foundation of your core infrastructure must be purpose-designed to support the large-memory operations of SAP HANA and to protect, secure and manage your data as it resides on various tiers of storage.
Many SAP HANA environments can benefit from persistent memory solutions. Standard RAM is volatile – data and can be lost on power outage or system reboot. When SAP HANA starts, it copies database contents from persistent storage, which can take hours for large databases. Persistent memory can massively speed the time for SAP HANA to return to full service. Be sure your core infrastructure supports non-volatile memory solutions validated by SAP.
In many SAP landscapes, computers must fetch a key or certificate to unlock volumes automatically, or storage must be unlocked manually after system restarts. Look for systems with a built-in key server supporting the Key Management Interoperability Protocol (KMIP) for the flexibility to integrate your choice of key servers.
SAP Data Intelligence lets you create data pipelines and integrate data from many sources into a unified environment. SAP Data Intelligence is only delivered in containers and requires a digital core supporting Kubernetes. Integrations provided through SAP Data Intelligence enable potential cost savings through tiered storage – where low-latency data resides on a solid-state medium and, higher-latency data is managed by a software-defined object storage system, such as Ceph.
The complexity of modern systems, the drive to optimise IT budgets and the desire for systematic security demands the automation of routine tasks so that systems administrators can focus on exceptions and on new service delivery. SAP designs its business applications to promote continuous operation and reduce administration time. Organisations can realise the administration savings associated with this automation emphasis if the underlying system also reflects this self-management paradigm. Look for a solution with advanced automation capabilities. This has the added benefit of enabling you to redirect your highly skilled IT staff to focus on new service delivery rather than routine maintenance.
As you consider a solution for your SAP core infrastructure, be aware of the difference between:
- Passive support: a general state of compatibility.
- Active support: an ongoing state of preparation and readiness
Is the system optimised for SAP workloads, quickly reconfigurable for different roles, with best practices applied automatically? Are tools available to reduce deployment expense? Does the vendor provide SAP specific packages and cloud images for easier migration and upgrades? Does the vendor offer transition support and extended-time support services? Do they have a proven history of success supporting SAP customers – and co-designing for the future with SAP?
Ask for case studies and references that support promises!
Preparing for SAP HANA
SAP HANA and the SAP S/4HANA business application suites offer an exciting vision of analytics and intelligence that will help your business maintain a competitive edge. To get the most from your SAP investment, choose a well-equipped core infrastructure that is designed to evolve with you. SUSE will ensure you are prepared with a versatile, well-integrated SAP core infrastructure.
SAP on SUSE
SUSE is a leading opensource vendor with a close relationship with SAP spanning over 20 years. This close relationship has resulted in SAP originally using SUSE Linux Enterprise Server as its primary development platform, including the original creation of SAP HANA. Unsurprisingly, then, SUSE Linux Enterprise Server provides the operating system base for over 90 percent of all SAP HANA deployments around the world, including SAP’s own internal infrastructure.
“SUSE Linux Enterprise Server for SAP Applications” is a specialised and expanded distribution of Linux based on SUSE Linux Enterprise Server and optimised to serve as part of the digital core for your SAP environment. It is preloaded with foundational tools for your SAP environments, such as high availability, persistent memory support and remote storage encryption management, is preconfigured with parameters for optimum SAP performance, and provides wizards and tools for easy deployment, optimisation, and management. SUSE works in partnership with the major public cloud service providers to deliver images customised and tuned for their individual cloud architectures, as well as fully automated deployment in the cloud.
SUSE also provides fully supported commercial distributions of next-generation open source technologies that are becoming core to SAP environments: Kubernetes container management, Ceph storage, and Cloud Foundry application deployment.
Add security, configuration, and lifecycle management for everything via SUSE Manager, and you’ll have all the tools you’ll need for a versatile and fully integrated core infrastructure, backed by comprehensive transition support and a range of options for ongoing maintenance and technical services.
Download the SUSE white paper to learn how these core technologies can improve the performance of your SAP environment, and ultimately your business.
This article is sponsored by SUSE.