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Exchange Maintenance

As far as Exchange maintenance goes, I would like to follow a similar process for beginning a semi-regular offline defrag schedule. We have 4 Storage Groups each containing 5 Stores. Each Storage Group averages 34GB, and each store averages 7-10GB. So my qustion is  how long it takes to run an offline defrag of a 10GB Store I can attempt to work out a schedule moving forward. Our Exchange server running in 2003 & also the server hosting Exchange 2003 is running in w2k3 enterprise edition.

Guys can you please help me out about this. Or Can you tell me what type of Maintenance shall I follow for the avobe configuration & how long does it take.

Thanks & Regards,

Biplab  
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biplabmukherjee
Asked:
biplabmukherjee
1 Solution
 
Joseph DalyCommented:
I have never done an offline defragmentation. Exchange 2003 if that is what your running does an online defrag every night. Offline defrags arent really necessary as many on here will agree.

See the link below for a better description from an MS MVP
http://www.eggheadcafe.com/software/aspnet/29662827/automatic-vs-offline-defr.aspx

Also I forget who but someone on here has a great posting why an offline defrag is not necessary and more of a risk than its worth.
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biplabmukherjeeAuthor Commented:
Do you have any idea about how long it will take for 10 GB of store data
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Rajith EnchiparambilOffice 365 & Exchange ArchitectCommented:
Offline defragmentation is NOT a maintainence work performed regularly by the admin.You only do it when you are reaching the database limit or when you have corrupted database.

Forget about offline defrag schedule.

Exchange has an online maintainence which it performs everyday.
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biplabmukherjeeAuthor Commented:
I knew it Exchange server 2003 do have that facility for online maintenance but we should how long it will take if we do offline maintenance for 10 GB data. Can you guys also please suggest me from where I can find out about the basic maintenance task that do I need do on maintenance cycle.
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Rajith EnchiparambilOffice 365 & Exchange ArchitectCommented:
It all depends on the data and the state of the server. Typically between 3-4Gb an hour, sometimes less.

Online Maintaincence schedule is set by exchange anyway. You can change it in the database properties to a custom schedule. Configure in such a way that it doesn't overlap with backup times.
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shauncroucherCommented:
As already stated here, you don't run offline defragmentation on any kind of schedule at all. In fact, I'd go as far to say that it would be classed as negligent behaviour to do this as it carries a risk of failure and data loss.

So, don't do it.

Read here about why offline defrag should only be used in very specific situations:

http://blog.sembee.co.uk/archive/2009/07/21/105.aspx

Shaun
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