OT: MS Exchange backups

Denis Beauchemin Denis.Beauchemin at USherbrooke.ca
Sat Nov 24 17:51:59 GMT 2007

Glenn Steen a écrit :
> On 24/11/2007, Denis Beauchemin <Denis.Beauchemin at usherbrooke.ca> 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...
>> 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
> I'm not the Echange admin (thank god!), but IIRC what he does is that
> he effectively "doubles" the size of the backup by exporting all the
> mailboxes first.... And the echange module is supposed to facilitate
> this too, but ... this was easier:-):-).
> Our Exchange database seem to be the same saze (or slightly larger) as
> yours... Shouldn't be taing 48 hours:-).
> If you like, I can have a chat with him come monday, to get the gory details.
> Cheers
Hi Glenn,

Yes, please tell me more about your setup.



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