Exchange recovery questions...

[Scott]

If users are using outlook 2003 in cache mode and the exchange server goes down taking some data with it in store/database corruption, when it comes back online will exchange delete the emails from the users ost file thinking "I don't have them so they shouldn't either" or will it copy those emails back into the exchange store thus recovering those emails from the client computers?

 

I'm curious because we currently run outlook 2000 and our exchange server went down last week and there was some corruption in the store. Fixing that lost a significant amount of data. I configured a recovery server only to find that the store had been corrupted for a few days before it went down (and nicely enough Veritas recognized and reported the store was corrupt on restore, but not when it had backed it up). So I was thinking outlook 2003 could prevent this from being a problem if it ever happens again, but not if exchange will just delete the emails from the users ost file once it's up and running again.

 

Thanks!

--
Scott McDonald

[Ken Ewert [MSFT]]

If you are saying that the exchange server as recovered to a previous point
in time (ie restored to the last backp without rolling logs forward) then
those messages will be left in the local copy of the client. There is a
tool in the Outlook binaries called ScanOST.exe I believe that if you run it
against that OST it will end up re-syncing the "local only" content back
upto the server.

If you are saying that the database was not recoverd but instead a new
database started, then Outlook (in cached mode) will not re-connect to the
new database / mailbox . Again, same way to recover the data via ScanOST
tool OR you can move your OST content to a PST, then re-create your
Outlook profile to point to the "new" mailbox and then mount the PST to the
new mailbox and drag the content back into your new OST and push it upto the
server.

Thx
Ken
"Scott" <mcdo...@yahoo.com> wrote in message
news:uNhbG3N8...@TK2MSFTNGP11.phx.gbl...

[Scott]

I'm not sure what you mean by "rolling logs forward"?

Without using scanost.exe does that just mean that the emails would remain
in the users ost on their system and not be copied back to the server store?
Then if scanost.exe is used once it's finished their outlook client will
copy the emails from the OST to the server?

Sorry, I'm very very new to exchange and thsi is my first having to deal
with a recovery. Thanks for your help.

--
Scott McDonald
"Ken Ewert [MSFT]" <MS-...@no.microsoft.spam.com> wrote in message
news:eoGa2KO...@TK2MSFTNGP12.phx.gbl...

[Ken Ewert [MSFT]]

no problem. I am going to over simplify things here so hopefully you will
pick up on what I'm saying.

Exchange's database uses a transactional logging scheme (like other
traditional database application). Thus as changes / transactions occur
to the database , the changes are recorded in transaction logfiles as well.
If you restore from a backup, you have 2 choices. 1) restore the database
as it was at the time of the backup 2) restore the database and replay the
transactions that occurred *SINCE* the backup was done and therefore you can
mature the database back upto the point of failure.

In answer to your question below, Yes.. .without the use of ScanOST, the
mail will remain in the local OST.

Thx
Ken

"Scott" <mcdo...@yahoo.com> wrote in message

news:OZXwtPO...@TK2MSFTNGP11.phx.gbl...

[Scott]

hey, one last quick question for you. Veritas never once reported any errors
with the exchange store when backing it up - now it's reporting an error
that the database is corrupted every time I try and restore it. IT restores,
but just reports that it's corrupted and thus the recovery exchange server
wont mount it.

I know I shouldn't do this, trust me I know, but the only system/drives I
have available to do this with had only a 40GB drive the store is 45GB so I
compressed the drive to get it to fit (which it does now). Is this the sole
reason it says it's corrupted, or should this still work?

--
Scott McDonald
"Ken Ewert [MSFT]" <MS-...@no.microsoft.spam.com> wrote in message

news:%232qzPGP...@TK2MSFTNGP10.phx.gbl...

[Ken Ewert [MSFT]]

Yeah... compressed drives are not cool.

See the following KB articles:
http://support.microsoft.com/default.aspx?scid=kb;en-us;170009
http://support.microsoft.com/default.aspx?scid=kb;en-us;327772
http://support.microsoft.com/default.aspx?scid=kb;en-us;318116

Thx
Ken

"Scott" <mcdo...@yahoo.com> wrote in message

news:eZnvfKP8...@TK2MSFTNGP09.phx.gbl...

[Scott]

Well, I replaced the drive with a 120GB drive and created a primary
non-compressed partition on it. Every restored store file is still reporting
at the end of the 3 hour restore process that the files have been restored
but the database is corrupt and was corrupted when it was backed up. This is
further confirmed as exchange will not mount the store.

Am I missing something? doing something wrong?

I setup a domain controller and installed exchange on it. Same domain name
as the production domain and same organization name for the exchange server
all this per Microsoft support (this recovery server is not on the network).
I tell veritas to restore to the original location and it does, it puts it
right back onto this systems S: drive where it was on the original server,
yet for weeks and weeks worth of tapes they are ALL reporting being
corrupted.

--
Scott McDonald
"Ken Ewert [MSFT]" <MS-...@no.microsoft.spam.com> wrote in message

news:%237uH7cP...@TK2MSFTNGP09.phx.gbl...

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