Jared,
Can you send me the script you use. I can't even figure out the syntax for
DBMS_SPACE from the docs. I would be very grateful
Ruth
----- Original Message -----
To: "Multiple recipients of list ORACLE-L" <[EMAIL PROTECTED]>
Sent: Tuesday, December 17, 2002 3:58 PM
I use DBMS_SPACE to calculate the actual size of all data objects
in our SAP databases. The data is collected once a week.
Once a month I use the collected data to create an aggregate
table via Oracle's linear regression and partitioning SQL operators.
Run the projections for the current month, end of year, the 2 following
6 month periods, put the data in excel and chart it.
Earlier this year my projection for SAP running out of space was 6/28/02.
There were some delays in getting the new storage hardware installed.
Guess which day we ran out of space? ;)
That was just dumb luck that it happened the same day, but now people
believe my projections. :)
I opted for the use of DBMS_SPACE, as that is the best way to find out
how much space is actually being used for data. I didn't care about
allocated empty blocks, or how big the tablespaces were.
There's now about 14 months of data for this, and though growth is not
alwasy linear, it's still better than a SWAG.
Jared
"Reddy, Madhusudana" <[EMAIL PROTECTED]>
Sent by: [EMAIL PROTECTED]
12/17/2002 11:25 AM
Please respond to ORACLE-L
To: Multiple recipients of list ORACLE-L <[EMAIL PROTECTED]>
cc:
Subject: RE: Capacity Planning -- Expecting the DB growth !!!
Hello All,
It should include all as you said , but since I do not belong to a
capacity
planning group in my shop , I mostly concentrate on the DB growth . I have
taken Sales as business object to correlate with the DB size . I think in
our case both of them are directly proportional. ( Business objects may
vary
from shop to shop )
first step I have done is calculating the : Growth factor = avg. History
Db
growth / avg Hist Sales growth
Second Step : identifying the Sales projection for the next fiscal year (
Ie. I have to get sales growth percentage from the business team , for
example 15% and multiply with sales history, for each week I guess.)
3rd step: Now I have sales projection and growth Factor , and can the
projected DB growth .
Well The above is the thing I am working on by having some queries to get
the data from the DB. Also I have to automate the whole process .
I would like to know how this Capacity planning followed in your shop.
What's your answer when your group manager asks how much disk we need for
holiday prep ?? Like this we can have many questions. I know somebody is
having a better approach getting followed . Would appreciate if you share
with us.
or somebody can better help me in """identifying """ the Q? from managers
!!!!
Thank YOU all for your replies
Madhu
-----Original Message-----
Sent: Tuesday, December 17, 2002 12:19 PM
To: Multiple recipients of list ORACLE-L
Check the link Kirti has posted (orapub).
Is capacity planning only on the database size ?
In my mind it also includes :
Transaction description (online and batch)
Transaction frequency (online and batch)
Transaction window
Networking requirements
Number of users (all and concurrent)
Overall disk space (inside and outside the
database)
Availability
--- "Reddy, Madhusudana"
<[EMAIL PROTECTED]> a écrit : > Hello All,
>
> I am currently working on capacity planning of the
> database , expecting the
> database size based on the business object ,sales (
> Historical data). I am
> not sure about the approach I am following . I
> believe there might be some
> better approach followed in some shop to estimate
> the DB size , even by
> considering events like "thanks giving" , "holiday
> season" and all.
>
> Also I have to automate this process. Would like to
> know some best
> suggestions you always have in this forum. Would
> you help me in identifying
> some formulae. Any kind of documentation will be a
> great help !!!
>
> Thanks in advance,
>
> Madhu
>
>
>
>
> ATTACHMENT part 2 image/gif name=Blank Bkgrd.gif
=====
Stéphane Paquette
DBA Oracle et DB2, consultant entrepôt de données
Oracle and DB2 DBA, datawarehouse consultant
[EMAIL PROTECTED]
__________________________________________________________
Lèche-vitrine ou lèche-écran ?
magasinage.yahoo.ca
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