Storage Space w.r.t. Datasets

[urahul]

Hi,
we are about to define our Scratch and Disk space for DS EE 71r1 on Solaris 5.8.
We have quite a few DataSet jobs creating persistant datasets.

It is observed that datasets tend to occupy a lot more space then oracle does. Accourding to the statistics i have accumulated, following storage requirements seem to be astonishingly high for datasets.

Table1:
DATEs : 7 (No of Date Fields)
NUMBERs: 38 (No of Number Fields)
VARCHAR2s: 21 (No of Varchar2 Fields)
TotalRecs: 9417112
ORACLE_STORAGE : 2.416015625 GB DataSets: 35.9234314 GB

Table2:
DATEs : 6
NUMBERs: 13
VARCHAR2s: 27
TotalRecs: 28945419
ORACLE_STORAGE : 4.192382813GB DataSets: 176.6688171 GB

Table3:
DATEs : 3
NUMBERs: 3
VARCHAR2s: 4
TotalRecs: 7038421
ORACLE_STORAGE : 0.649414063 GB DataSets: 11.94263329 GB

Table4:
DATEs : 7
NUMBERs: 9
VARCHAR2s: 59
TotalRecs: 35001827
ORACLE_STORAGE : 10.24314883 GB DataSets: 267.0427475 GB

I would, very much, like to know whether thats normal for datasets; Or something is terribly wrong with my machines/configuration.

Can anyone help please?

Thanks
Rahul

[lakshman_gk]

How do you calculate this comparison? I would like to do the same kind of observation for our files. How can I go about it?

[ArndW]

urahul,

what kind of data types do you have in these datasets? Do you have a lot of CHAR type data which might be stored as VARCHAR in Oracle?

[urahul]

The calculations are based on the actual space occupied by the DataSets and respective oracle tables.

There are no CHARs in the database tables.
There are only NUMBERs, DATEs and VARCHAR2s.


Thanks
Rahul