![]() Originally, this was a convenience utility, written in Perl, from the Debian Linux project, called update-alternatives. The alternatives command began its life as, interestingly, an alternative. ![]() Unless that is, you use the alternatives command. In theory, a Linux sysadmin can offer many system tools according to function rather than by the exact name of the executable, but that often requires a lot of symlinking and version tracking. In fact, even applications don't always care how something is achieved as long as all of its system calls are answered correctly. Linux system administration skills assessmentĪbstractions can be helpful to users because many users don't care how their computer achieves a task as long as it's on target.A guide to installing applications on Linux.Download RHEL 9 at no charge through the Red Hat Developer program.We can execute multiple tasks in parallel and manage centrally. It will help to reduce human mistake and save man hours. SAP LAMA is very useful in large SAP landscape administration, and we can manage most of the operation centrally through LAMA. Lama will perform all steps and system will be ready for use. Now we are ready to execute the system refresh. Now click on next and provide information of ABAP PCA task lists which are maintained on target system. Now run “Execute Prerequisites Checker” and check if everything okay. If we have not maintain DB user information in the configuration of target system then we have to provide DB user information here. Next screen will provide the information of HANA DB backup which we have taken on source system and placed on shared filesystem. Next screen will provide information of application OS user. Next screen provide all virtual host and network information of target SAP application and DB. ![]() Now validate this step and click on next. On next click we can find target system information. Export directory will be used to export PCA task list data. From the Provisioning dropdown for the system, choose Refresh Processes –> Refresh System àRestore-Based Refresh.Mount filesystem for backup and same need to be maintain in source system and this should be mount on target system otherwise we will have to copy this backup on target system. Here we will focus on System Refresh Configuration only. This configuration holds the physical location of required software for different LAMA operation.įor Example – Kernel Upgrade (RKS), SAP Instance Provisioning, DA Agent Provisioning, HANA DB Upgrade, System Refresh(SWPM or DB backup location) etc. We have to create repository configuration in LAMA under infrastructure. Please have a look on SAP Note 2905510 for more information on third party backup tool and LAMA integration.Ĭreating Configuration Repository for System Refresh This Backup tool can be integrated with LAMA. In this method we can use any third-party backup tool which is certified by SAP. Application server configuration remain same. In this method we take DB backup of source system on filesystem and use the same to refresh target system. We have two way to perform this – we can use file system backup or use backint backup. Restored based system refresh refer to database backup/restore method and this is available only for HANA DB. ![]() I will cover system refresh (restored Based) through LAMA in this blog post. Below are the few bullet points manual procedure vs LAMA automation. I will cover System refresh through LAMA in this blog post. SAP has developed a powerful tool to automate many administrations task like System start/stop, Kernel Upgrade, System Refresh, System Copy, DB copy, System movement, SAP/DA Instance provisioning, HANA DB replication administration etc.
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