EBCDIC-> ASCII codepage conversion

[Former Member]

Hi folks,

Please be patient enough to answer my queries. We are planning to upgrade either to 4.7 or ERP2005. Please let me know if I'm on track as well as answer some of my queries:

We are on 4.6C with 46D_EXT kernel, OS release V5R3. We have DEV & TST system on one partiton(LPAR1) of I550 server while PRD is on the second partition(LPAR2).

LPAR1 -> 6GB Ram -> 700 GB disk space -> 2.5 memory units(out of 5)

LPAR2 -> 9GB Ram -> 700 GB disk space -> 3.5 memory units.

1. How much disk space should be added in figures for Codepage conversion and Upgrade?

70% disk is used up as of now in each partition.

2. Is the memory, OS release enough?

3. What is the time required for Code page conversion for 100 GB database? Is time taken relative to database, OS or memory? Is the SAP CPC guide enough to get started? Which procedure should I choose - InPlace or Export/Import.

Please post some suggestions too.

Thanks!

Nick Ron

[Former Member · Accepted solution]

Nick,

I suppose, you wont need to change the processor capacity. Disk space and memory needs to be increased. CPC would take more of your disk,50-70%.

SAP recommends 10% increase in memory for CPC and upgrade.

It would be fine if you increase memory by 4GB.

Regards,

Sai R.

[Former Member · Accepted solution]

Thanks! to all

[Former Member]

Regarding memory, the general guideline has been that you want to be looking at a minimum of 8GB a processor for a single instance on a POWER5+ system for production. Multiple instances and multi micro-processor partitions will increase that.

Dev/Test environments are always tricky to size because no two customers have the same workload profiles, but I would always start from that minimum figure and then work up.

If you don't put enough memory in the system, all you get is a very expensive processor waiting for data. Hope this helps.

[Former Member]

Hi Nick,

a lot of questions ...

1. How much disk space should be added in figures for Codepage conversion and Upgrade?

70% disk is used up as of now in each partition.

>>> ebcdic-ascii CPC & Upgrade typically double the database size ...

=> it might become a little bit full ...

2. Is the memory, OS release enough?

>>> memory for DEV & TST will be far too short ... for PRD perhaps OK - you will have to test.

3. What is the time required for Code page conversion for 100 GB database? Is time taken relative to database, OS or memory? Is the SAP CPC guide enough to get started? Which procedure should I choose - InPlace or Export/Import.

>>> You need to be certifiedfor the CPC => Then you should know how to handle these kind of questions ...

Regards

Volker Gueldenpfennig, consolut.gmbh

http://www.consolut.de - http://www.4soi.de - http://www.easymarketplace.de