Depending on the MII version installed, different upgrade paths are available. See the matrix below to
determine what options are available for your current MII version.
Migrating or Upgrading depends on what version is already installed and what version you want to move to.
• If MII 11.5 is installed then the Migration Tool will be used. It is possible to use this tool to migrate
11.5 content to a new 12.x box. If your 11.5 server is capable of running NetWeaver then migration
directly on that server is also possible.
• From MII 12.0 there are two paths forward:
• First, is an in place (on box) upgrade of MII and NetWeaver using the NetWeaver Upgrade
Tool. This upgrades MII from 12.0 to 12.1 or 12.2 and NetWeaver from 7.0 to 7.11 EHP1. It is
done on the same server.
• The other option is creating a new MII 12.1 or 12.2 server and use MII‟s Project and
Configurations import/export features to transfer content
• From MII 12.1 to 12.2 you have two options
• Perform an upgrade on the same server by just deploying the MII 12.2 SCA files using CE
• The other option is creating a new MII 12.2 server and use MII‟s Project and Configurations
A logical partition (LPAR) is the division of a computer's processor s, memory , and storage into multiple sets of resources so that each set of resources can be operated independently with its own operating system instance and application
1.Log on to ur TMS Domain Controller.
2.Tcode - STMS
3.Click on System Overview (3 boxes button)
4.Double click on the system you want to disable Import All button
5.Goto Transport Tool Tab in edit mode.
6.Click on ADD button & add NO_IMPORT_ALL with value 1
7.Save & exit
A Single Point of Failure (SPOF) is any component within a system that, if it fails, causes a loss of a runtime critical service. A SPOF can be hardware or a software component.
SPOF SAP software components are:
The central file system and
In a High Availability manner it is necessary to eliminate these SPOF.Be aware that it is possible to introduce additional SPOFs through configuration and programming, by adding critical, non redundant components yourself. These must be identified through an analysis and either be eliminated or covered by failover services.
An active-active cluster consists of two independent server nodes at a minimum. The workload within a cluster resource is shared between the server nodes.
If a cluster node crashes the processes are resumed by the remaining cluster nodes. An active-active cluster configuration means that a cluster resource is active on all cluster nodes.
The aim of an active-active cluster is not only to provide high availability system but to distribute the workload between the cluster nodes. Applications with a very high workload like databases benefit from an active-active setup.
tags: sap, high availability, ha, cluster, active, passive,
The enqueue server keeps critical data (that is, all locks currently in use by users in the system) in the lock table in the main memory. If the host fails, this data is lost and cannot be restored even when the enqueue server is restarted. All transactions that have held locks must therefore be reset.
For this reason, the enqueue replication server (ERS) is started on another machine which together with the standalone enqueue server (SCS) provides a high availability solution.
Enqueue Server run on MAIN MEMORY
ERS runs on SHARED MEMORY
tags: sap, en, ms, ers, rep, server, ha, replication,
The latest release of SAP NetWeaver 7.4 Support Package Stack 08 (and the corresponding release NW 7.31 SP13 and) contains the following features and changes in SAP Fiori launchpad running in SAP Enterprise Portal:
No Activation of Theme Designer Necessary Anymore
Previously, to allow SAP Fiori launchpad to run on the portal, administrators had to activate the UI Theme Designer (switch to LESS). This prerequisite is no longer relevant. Administrators only need to perform this switch if they want to customize a portal theme using the UI Theme Designer and then run SAP Fiori Launchpad on Portal using the customized theme. Checkout also note 2036827 - Enable FLP on EP to run also without LESS structure.
Personalization of Groups
Until the last release end users could not create or manage groups in the SAP Fiori launchpad. Starting from NetWeaver 7.4 SPS8 (and NetWeaver 7.31 SPS13), users can create and remove groups and arrange content/tiles in their home page according to a group personalization.
About Virtual IP
A virtual IP address (VIP) is an IP address assigned to multiple domain names or servers that share an IP address based on a single network interface card (NIC). VIPAs are allocated to virtual private servers, websites or any other application residing on a single server. The host server for these applications has a network IP address assigned by a network administrator, whereas the different server applications have VIPAs. VIPAs enhance network load balancing and redundancy.
Physical IP vs Virtual IP
VIP belongs to virtual network adapter
Physical IP belongs to Network adapter
VIPs in SAP Context
VIPs are used in SAP High Availability for different failover components [SCS/ERS/DB]
tags: vip, sap, ha, virtual, network interface, adapter, nic, host,