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05828 - EBCDIC to ASCII & WAS - Questions Questions Qu estions

05828 - EBCDIC to ASCII & WAS - Questions Questions Qu estions

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EBCDIC to ASCII & WAS - Questions Questions Qu estions


One possible thing you can do with the extra disk space is to use larger
disk drives than previously recommended. The disk I/O stays the same as
compared to EBCDIC installations, so the number of disk arms required for
optimal performance does not change. This gives the opportunity of using
17GB and 35 GB drives to meet your disk space requirements while still
meeting the disk arm performance guidelines.

As a final note, be very careful using the "standard" iSeries disk arm
calculations. They are not designed for measuring the SAP workload, which
has some unique characteristics. The IBM sizing groups for SAP have more
accurate guidelines.




Jim Sanders
Software Group IT Architect
IBM Canada Limited
(905) 316-3596

e-mail: jsandersZc...

Stay Calm, Be Brave... Wait for the signs






"Stringer, Peter

(UK - Warwick)" To:
DoNotReply@consolut.eu
<pstringerZd... cc:

> Subject: RE:
EBCDIC to ASCII & WAS - Questions Questions Qu
estions

04/19/2002 08:42

AM

Please respond to

SAP on System i








Andi

From reliable sources at SAP+IBM, plus our own experience ..

Extra resources for EBCDIC-> ASCII
R/3 55-70% DASD
BW 40-50% DASD
Journals <50% (large journal header is E/A independent)
Memory 10%
CPU - no overhead
Disk IO - no overhead

The conversion from EBCDIC to ASCII is only supported if done by certified
SAP iSeries CodePage conversion specialist. There is a pilot course, SAP
iSeries Code Page Conversion Course (oddly enough), in Walldorf in May, 1.5
days, €700, where you can get certified.

Tests from SAP+IBM have shown that for database running on
820, 4-way, 20 disk arms, 100GB data
the conversion runtime was 10-12 hours, so you should have fun with 1TB.

Unicode is still some way off for R/3

Hope this helps
Regards

Peter

-----Original Message-----
From: andi_merchant [mailto:Andi.MerchantZN...]
Sent: 19 April 2002 11:46
To: DoNotReply@consolut.eu
Subject: EBCDIC to ASCII & WAS - Questions Questions
Questions


Hi All,

long time no post - hope you are all well...

Does anyone have any experiences or information on the "new"
direction from SAP.

Q1. Anyone ever done an EBCDIC to ASCII conversion on iSeries? Q2. Web
Application Server - Anyone running it? Q3. WAS - is it only supported on
Windows 2000 or can I run it on
Linux or Websphere inside an iSeries?
Q4. Does anyone have any timings on a 1TB database for converting
from EBCDIC to ASCII?


any info you can pass along will be very gratefully received..

best regards

Andi



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