OT: MS Exchange backups

Denis Beauchemin Denis.Beauchemin at USherbrooke.ca
Sat Nov 24 17:50:44 GMT 2007

Raylund Lai a écrit :
> Denis Beauchemin wrote:
>> Gerry Doris a écrit :
>>> shuttlebox wrote:
>>>> On Nov 23, 2007 10:04 PM, Denis Beauchemin
>>>> <Denis.Beauchemin at usherbrooke.ca> wrote:
>>>>>>> Manager (TSM) and Backup Exec but couldn't backup our 250GB data
>>>>> I'm not sure I understand your question...  it takes 48 hours to 
>>>>> backup
>>>>> to disk!
>>>>> Of course, we can't afford to stop Exchange to either backup or 
>>>>> restore
>>>>> data.  Everything has to be done online...
>>>> Something is very wrong. We use Legato Networker on Solaris and it
>>>> backs up many TB during the night including at least six Exchange
>>>> servers each with larger databases than yours. Of course we spread the
>>>> full backups so most servers only gets a diff or inc backup but still
>>>> the full backups never takes more than a few hours.
>>> We generally install either Legato or Veritas and backup many 
>>> Exchange servers/TBs overnight.  Check to make sure that the servers 
>>> are being kicked off at different times...don't try and start 
>>> everyone at midnight!  250GB is nothing. 
>> I agree with all of you. It should not take so much time...  disks 
>> are on a local raid5 box.  I think the time is spent extracting 
>> people's mailboxes from the db and copying them to disk...  but 
>> still, it takes way too long...
> You should check your backup logs.  Are there any signs of "timeout"?  
> May be the credential don't have privilege to open mailbox?
>> How do you restore a single mailbox or some emails?  Do you have to 
>> restore the hole db and then extract the relevant emails?  If so, it 
>> is a waste of time and resources...  unless there isn't any other 
>> way...  I think this is what they are trying to avoid but obviously 
>> it is not working very well...
>> Thanks!
>> Denis
Thanks for the tip, Raylund,  I will try to have a look at them on Monday.


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