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capacity planning for SQL Server Dbs storage


capacity planning for SQL Server Dbs storage

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sqlguy-549681
sqlguy-549681
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Hello All,,

I am tasked to provide the storage required for SQL Server Databases for the coming 3 years
I followed some instructions I have found and collected the data required to complete my task
Like

• How many database will host on SQL server
• How many users connected to SQL SERVER
• Row length per table for each database
• Data loading rate per day\week\month
---------------------------------------

On the time being I am searching on an easy way to calculate the storage required for the coming 3 years based on the input I have.

Does anyone have an idea or clear and solid steps to do this??

Thanks in advance & appreciate ur support
RBarryYoung
RBarryYoung
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FYI: this is actually called "Storage Planning", as "capacity planning" has a very specific and completely different meaning for computer systems.

I do remember seeing some good storage planning articles a couple of weeks ago, I'll see if I can find them...

-- RBarryYoung, (302)375-0451 blog: MovingSQL.com, Twitter: @RBarryYoung
Proactive Performance Solutions, Inc.
"Performance is our middle name."
RBarryYoung
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also, what kind of organization is this for? Business, academic, non-profit, Govt, NGO, ... ?

-- RBarryYoung, (302)375-0451 blog: MovingSQL.com, Twitter: @RBarryYoung
Proactive Performance Solutions, Inc.
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RBarryYoung
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This isn't the article I was thinking of, but it does have some perspective and approach for this: http://sqlblog.com/blogs/merrill_aldrich/archive/2009/10/29/using-historical-perf-counters-for-storage-planning.aspx

-- RBarryYoung, (302)375-0451 blog: MovingSQL.com, Twitter: @RBarryYoung
Proactive Performance Solutions, Inc.
"Performance is our middle name."
Roust_m
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I guess you could find out the storage required for data using the data load rate, then double it to account for indexes and then double it again to account for any underestimation you could have made.



Steve Jones
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Are you "loading" data or is this users making changes? If it's the latter, which is what most systems have, it's impossible to do anything other than guess without historical data.

I've typically used backup sizes (since those are data) and tracked that over time to allow me to extrapolate out what space I will need in the next xxx months.

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sqlguy-549681
sqlguy-549681
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thx guys

here is how to Determining SQL Server database storage requirements in 2 ways Hard and easy


http://searchsqlserver.techtarget.com/tip/0,289483,sid87_gci1289528_mem1,00.html

thx again
Steve Jones
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That's a highly incomplete link, and it's what was said before.

The hard part is determining
- records/month

If you know that, then it's easy. But getting that number can be very hard.

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sqlguy-549681
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I guess this info supposed to be available with applications developesr and business users, the only way to get this number is "Expectaion " , coz no way provide exact number for record per (day,week or Month) for a blank farm

Kindly correct me if i am wrong
homebrew01
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I don't delete my full backup history so that I can use previous backup size to predict future growth.


-- Average DB size by month for ALL Databases
-- Backups DO NOT include free space in database

select substring(a.database_name,1,35) as 'Database',
datepart(year,a.backup_start_date) as 'year',
datepart(month,a.backup_start_date) as 'month' ,
avg(cast((a.backup_size /1073741824) as decimal (9,2)))as 'Avg Gig'
FROM msdb.dbo.backupset a
join msdb.dbo.backupset b on a.server_name = b.server_name
and a.database_name = b.database_name
WHERE a.type = 'D' and b.type = 'D'
--and a.database_name = 'xyz'
and a.backup_size > 1073741824 -- > 1 Gig
GROUP BY a.database_name,datepart(year,a.backup_start_date),datepart(month,a.backup_start_date)
order by a.database_name,datepart(year,a.backup_start_date) desc,datepart(month,a.backup_start_date) desc





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