Re: What happens when you lose Log files before shutting down EX Srv?
From: Ed Woodrick (ewoodrick_at_ed-nospam-com.com)
Date: 10/01/04
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Date: Fri, 1 Oct 2004 18:44:28 -0400
I believe that this is incorrect.
If logs haven't been played, then the database will mount and transactions
that were in the logs will be lost.
The reason why the logs exist is to make sure that the database is ALWAYS
consistent.
"Jim Dixon" <nospam@eidenai.ca> wrote in message
news:194201c4a257$5aa258e0$a301280a@phx.gbl...
>
> Consider two types of log files, those that have been
> committed to the store and those that have not. the *.chk
> file contains this information.
>
> If you loose the ones that have already been comitted
> then nothing happens, this happens by design when you
> perform an online back up.
>
> If you loose the ones that have not been comitted, then
> you are in trouble.. Liekly the store will not mount and
> will require a repair and reindexing before you will get
> it to mount. And you will loose all mail items that were
> in the logs lost that had not yet been comitted to the
> store.
>
>>-----Original Message-----
>>Hello!
>>
>>I've read articles about when you lose Database how you
> can replay log files
>>to get all emails back, but I can't seem to find a good
> article explaining
>>what happens if you lose a log disk. I've searched and
> found a few articles
>>explaining how to come out of problem when log disk gets
> full. I am really
>>interested in what happens when a log disk is lost
> before Exchange gets shuts
>>down. After repairing a log disk, can Exchange restart
> services by recreating
>>new log files? Or does it become DB becomes inconsistent
> so I'd have to
>>repair DB?
>>
>>Thanks in advance,
>>
>>.
>>
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