Performance Tuning 10g

Hi All,
I had given a task to tune oracle 10g database. I am really new in memory tuning although I had some SQL Tuning earlier. My server is in remote location and I can not login to Enterprise Manager GUI. I will be using SQL Developer or PL/SQL Developer for this. My application is web based application.
I have following queries with this respect:
- How should I start... Should I use tkprof or AWR.
- How to enable these tools.
- How to view its reports
- What should I check in these reports
- Will just increasing RAM improves performance or should we also increase Hard Disk?
- What is CPU Cost and I/O?
Please help.
Thanks & Regards.

dbdan wrote:
Hi All,
I had given a task to tune oracle 10g database. I am really new in memory tuning although I had some SQL Tuning earlier. My server is in remote location and I can not login to Enterprise Manager GUI. I will be using SQL Developer or PL/SQL Developer for this. My application is web based application.
I have following queries with this respect:
- How should I start... Should I use tkprof or AWR.
- How to enable these tools.
- How to view its reports
- What should I check in these reports
- Will just increasing RAM improves performance or should we also increase Hard Disk?
- What is CPU Cost and I/O?
Please help.
Thanks & Regards.Here is something you might try as a starting point:
Capture the output of the following (to a table, send to Excel, or spool to a file):
SELECT
  STAT_NAME,
  VALUE
FROM
  V$OSSTAT
ORDER BY
  STAT_NAME;
SELECT
  STAT_NAME,
  VALUE
FROM
  V$SYS_TIME_MODEL
ORDER BY
  STAT_NAME;
SELECT
  EVENT,
  TOTAL_WAITS,
  TOTAL_TIMEOUTS,
  TIME_WAITED
FROM
  V$SYSTEM_EVENT
WHERE
  WAIT_CLASS != 'Idle'
ORDER BY
  EVENT;Wait a known amount of time (5 minutes or 10 minutes)
Execute the above SQL statements again.
Subtract the starting values from the ending values, and post the results for any items where the difference is greater than 0. The Performance Tuning Guide (especially the 11g version) will help you understand what each item means.
To repeat what Ed stated, do not randomly change parameters (even if someone claims that they have successfully made the parameter change 100s of times).
You could also try a Statspack report, but it might be better to start with something which produces less than 70 pages of output.
Charles Hooper
IT Manager/Oracle DBA
K&M Machine-Fabricating, Inc.

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    KunwarYou might find: RMAN Recipes for Oracle Database 11g : A Problem-Solution Approach ... ISBN13: 978-1-59059-851-1 ... a little useful.
    Rgds bigdelboy. (I've been composing this over a 2 hour period with several distractions and have run out of time so some bits might not make sense ... i may even have siad something silly).

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