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Sizing guidelines for storage capacity on Oracle systems


When sizing storage capacity for an Oracle system, you need to consider the following Oracle database components:

  • Database files
  • Online REDO log files
  • Backup/flash data

Storage capacity

Database element

Space requirement

20,000 nodes

50,000 nodes

100,000 nodes

150,000 nodes

200,000 nodes

Database files

DB size

20 GB

50 GB

100 GB

150 GB

200 GB

Temporary tablespace

DB size * 0.2

4 GB

10 GB

20 GB

30 GB

40 GB

System/undo tablespace

DB size * 0.1

2 GB

5 GB

10 GB

15 GB

20 GB

Online redo logs

DB size * 0.2

4 GB

10 GB

20 GB

30 GB

40 GB

Archive logs

DB size * 1.0

20 GB

50 GB

100 GB

150 GB

200 GB

Backup/flash data

DB size * 2.0

40 GB

100 GB

200 GB

300 GB

400 GB

Total

 

90 GB

225 GB

450 GB

675 GB

900 GB

 

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