Difference b/n SCM 4.1 to SCM 5.1

[Former Member]

Hi guys,

Can any one tell me the major differences b/n SCM 4.1 server to SCM 5.1 server....

Thanks in advance,

nani.

[Former Member · Accepted solution]

Hi nani,

Few differences are as follows:-

1) In scm 4.1, the download, comparison and the upload were parallelized per planning version. If there is one large planning version, the performance improvement of this kind of parallelization is low. (LIVECACHE)

With the upgrade to release SCM 5.1 the download, comparison and the upload run parallel within the planning versions, depending on the number of CPUs of the liveCache (LIVECACHE)

2) In releases SCM 4.1 and 5.0 the enabling or disabling of ATP time series as well as updating the ATP time series bucket parameters is only possible via a complicated procedure. (ATP)

As of SCM 5.1 it is possible to change the bucket parameters of ATP time series, i.e. to enable or disable ATP time series or to update the bucket parameters in liveCache without the need of a liveCache downtime. (ATP)

3) Starting with this release time series data of Demand Planning will be stored in a compressed format reducing the liveCache memory requirement significantly. The compression rate of a time series depends on its data constellation and the memory consumption is influenced by the values stored in the buckets of the time series. Values smaller than ± 2.147.483 require 4 bytes, bigger values require 8 bytes of persistent memory. Zero and repeated values (same value as in previous bucket) require just one bit.

In order to estimate the savings in memory consumption SAP provides a tool to analyze an existing non-compressed set of time series. (DEMAND PLANNING)

4) The memory requirement of Demand Planning will decrease with SCM 5.1 compared to previous releases significantly because of the compression of time series data. For all other applications the memory requirements have not changed between SCM 4.1 and SCM 5.1. (MEMORY APPLICATION)

5) The process of recording simulative changes on time series data has been modified with this release. When merging a simulation into the real data, not all actions executed within the simulation are repeated but only changes on persistent data are transferred. Thus the performance of the merge process is improved significantly

Regards

R. Senthil Mareeswaran.