I am about to do the first ever defrag on our exchange database and am just looking for a bit of moral support and advise that I am doing the right thing.
We run an A/A/P cluster for exchange with a virtual server. The database resides on the SAN and is mounted as an S:\ drive.
My plan was to login to the virtual server, dismount the store and then run eseutil from the command prompt and use the following line.
c:\exchsrvr\bin>eseutil /d S:\EXCHSRVR\MDBDATA\MailSt
Does that look about right and am I on the right lines here?
The .edb database is 26Gb and the .stm database is almost 10Gb.
How long might it take and is there anything I need to keep an eye out for. I am particularly nervous about doing it as the servers have been in for over 3 years and this has never been done.
Thanks,
Kev
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Also would like to inform you that you would have to run the Isinteg command to remove any logical corruption. As once the Offline defrag is done the pages in the B-tree of the DB would be moved so we have to set the pointers correctly and that would be done by Isinteg and it would run at a speed of 10-12 Gb per hour and no free space is required.
The time depends on the performance of your machine, if you have better performing pc then it would take less time.
The following url may give all the required commands to defrag Exchange databases
http://www.msexchange.org/
If you are too cautious, then take a backup of the "Information Group". It is better to backup the information group instead of information store alone.
You may use the ntbackup available in Windows itself.
Type ntbackup in the "Start -> Run" or look at the url
http://www.msexchange.org/
or
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by: RancyPosted on 2009-05-20 at 02:52:34ID: 24429959
The command is perfect
So do we have about 110% free space of the DB that would be 42gb of free space on the C drive.
this would run at a speed of 4-5 Gb per hour.