Blogs by

Jens Gleichmann

In the last 10 years I have patched a lot of SAP systems and the last 5 years mostly HANA systems. Technically the update of the HANA DB is no rocket science. The patching process

In general nearly everyone knows that with new installations based on NW750 there are no cluster tables anymore. When you migrate to HANA one prerequisite is that all cluster and pool tables have to be

A lot of customers asked me in the last weeks ‘what should be used HANA 1.0 or HANA 2.0?’. There are some reasons you can’t avoid to migrate to HANA 2.0, but there are still

Some of you may already know the limitation of 2 billion entries in a single table / partition. Another hint regarding this limitation is the alert ID 17 ‘<table> contains xxx records’. The default threshold

First of all for what do you need the tool saptune? automatically tuning your system without reading tons of SAP notes ensures that all your SAP systems configured identically with a central solution create your

To understand the data aging in detail we will go a little bit deeper in this part of the blog series. As example we will use table CDPOS. Data aging is in use and aging

Since Sapphire this year SAP and Intel have announced some new details regarding Skylake and NVM (non-volatile memory). With the new processors it should be possible to gain ~60% more performance when running HANA workload

If you successfully finished my last blog post about data aging ‘General Iinformation about data aging’ it is time for the deep dive. How SAP has implement it and how it works in detail. As

Many people heard about data aging in context of HANA. You see it on a lot of SAP slides with DLM (Data Lifecycle Management) or in BoH / S/4HANA context, books about HANA and especially

In the last time, especially in the last days during Sapphire, the topic non-volatile memory (NVM) was hot as hell. A lot of people defined it as a game changer in the context of HANA.