Re: Automate defragmentation

"John Fullbright" <fjohn@donotspamenetappdotcom> wrote in message news:eQV7xPxoHHA.4212@xxxxxxxxxxxxxxxxxxxxxxx
Unless you recently and permanently removed a large amount of mail, it's pointless. The whitespace will come back in that a certain amount of whitespace is normal. If you remove it in this case, you will degrade the performance of your exchange server. After an offline defrag Exchange has to allocate more disk space because you spent hours offline removing the whitespace that's used in normal operations. Exchange also has to spend cycles rebuilding the indexes that the offline defrag cleared. So, let me get this straight; you want to know how to degrade the performance of your exchange server on a regular scheduled basis....

OK, let's see,

1. Every night you could pull a drive from your RAID array and let it rebuild - wait that involves a manual step.
2. You could intentionally detune memory by putting a very low value for jet databasebuffers that is not of the proper increment. - wait, you only do that once.
3. You could load desktop search engines on all the desktops in your environment and schedule them to do a crawl at 0:800 AM and one hour intervals thereafter - it's a client side solution, but I believe it meets your criteria.

You forgot one.

4. Download the Jetstress and Load Generator tools from http://technet.microsoft.com/en-us/exchange/2007/bb330849.aspx and run them continually. I'm sure you can find a way to script them...

.

Relevant Pages

  • Re: Deleted mailboxes dont free up space is edb
    ... It will not reduce the size of the database, ... Whitespace will then be used for new objects in the database rather than ... However an offline defrag isn't the best option, ... It is far easier to move mailboxes to another Exchange Server, ...
    (microsoft.public.exchange.admin)
  • Re: Deleted mailboxes dont free up space is edb
    ... Whitespace will then be used for new objects in the database rather than ... However an offline defrag isn't the best option, ... It is far easier to move mailboxes to another Exchange Server, ...
    (microsoft.public.exchange.admin)
  • Re: Reclaim Disk Space in Exchange 2003
    ... What makes the whitespace available? ... >> Is it possible to reclaim full disk space use when users delete mail ... >> and then the mail is deleted from the Exchange Server? ... > have to do an offline defrag using eseutil. ...
    (microsoft.public.exchange2000.misc)
  • Exchange 5.5 - Whitespace
    ... an offline defrag is the only way you ... will recover the 4 gig. ... 4500 MB of whitespace in my database (determined by ... assuming that deleting mail should make this number go ...
    (microsoft.public.exchange.admin)
  • Re: Exchange server problem
    ... databases, and you'll break Exchange if you delete any of them. ... Before trying an offline defrag, look in your server's Application Log for ... public store and one from the mailbox store. ... I am using exchange server with windows sbs 2003 premium edition. ...
    (microsoft.public.windows.server.sbs)