How to estimate the disk space?

Oracle 10.2.0.4.
In order to build the new database on Solaris server, I need estimating disk space so that I can ask disk space. How to estimate it? Based on the current transaction? How to find the transaction under current database?

Help, please.

Thank you

S.

ski123 wrote:
Oracle 10.2.0.4.
In order to build the new database on Solaris server, I need estimating disk space so that I can ask disk space. How to estimate it? Based on the current transaction? How to find the transaction under current database?

Help, please.

Thank you

S.

First of all, you must know the structure of your tables. Using the table definition, you can quite easily calclulate the average row size. Then multiply by the expected number of rows. Do this for all tables. Factor in the fact that the space allocated by degrees. So, if you have a measurement of 10 MB size, the first line you insert will cause 10 MB drive to eat, but then the "n" next lines will cause no additional disk consumption (up until the 10 MB is consumed) because there is already a 10 MB preallocated in the scope. Factor in the use of the pct adversely affect use of the measure. Factor to a value of loot to take account the fact that everything is a riddle. Some people recommend a haul of 100%.

And all this is just for the data files for the tables. Go through the same exercise for the index. Add the backupsets and archivelog files.

Published by: EdStevens on October 27, 2010 17:11

Tags: Database

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