Return-Path: Received: from ensim.rackshack.net (root@localhost) by orafaq.net (8.11.6/8.11.6) with ESMTP id gBI0evI26285 for ; Tue, 17 Dec 2002 18:40:57 -0600 X-ClientAddr: 209.68.248.164 Received: from newsfeed.cts.com (newsfeed.cts.com [209.68.248.164]) by ensim.rackshack.net (8.11.6/8.11.6) with ESMTP id gBI0ev326280 for ; Tue, 17 Dec 2002 18:40:57 -0600 Received: from fatcity.UUCP (uucp@localhost) by newsfeed.cts.com (8.9.3/8.9.3) with UUCP id NAA80708; Tue, 17 Dec 2002 13:23:41 -0800 (PST) Received: by fatcity.com (26-Feb-2001/v1.0g-b72/bab) via UUCP id 0051BD68; Tue, 17 Dec 2002 12:58:53 -0800 Message-ID: Date: Tue, 17 Dec 2002 12:58:53 -0800 To: Multiple recipients of list ORACLE-L X-Comment: Oracle RDBMS Community Forum X-Sender: Jared.Still@radisys.com Sender: root@fatcity.com Reply-To: ORACLE-L@fatcity.com Errors-To: ML-ERRORS@fatcity.com From: Jared.Still@radisys.com Subject: RE: Capacity Planning -- Expecting the DB growth !!! Organization: Fat City Network Services, San Diego, California X-ListServer: v1.0g, build 72; ListGuru (c) 1996-2001 Bruce A. Bergman Precedence: bulk Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit 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" Sent by: root@fatcity.com 12/17/2002 11:25 AM Please respond to ORACLE-L To: Multiple recipients of list ORACLE-L 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" 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 stephane_paquette@yahoo.com __________________________________________________________ Lèche-vitrine ou lèche-écran ? magasinage.yahoo.ca -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: =?iso-8859-1?q?Stephane=20Paquette?= INET: stephane_paquette@yahoo.com Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru@fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Reddy, Madhusudana INET: Madhusudana.Reddy@bestbuy.com Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru@fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: Jared.Still@radisys.com Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru@fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).