As much as I appreciate multiple links and sarcastic comments, I do not see
anywhere in the whitepaper from either 5.5 or 2000 on how you can roll logs
forward IF THE LOGS AREN'T THERE...  Have you ever heard of a full system
crash?  Although I admit it is much less likely than any other type of
failure it is still possible to lose the entire server, isn't it?  And if it
is, the logs you are so fond of referring to will be about as useful as your
sarcasm.  If you ever have the misfortune to work for lawyers you will find
that there are certain things you do and deal with and a full system daily
backup which is as up-to-date as possible is an absolute requirement.  That
is the reason that I am asking and why I feel my use of differentials is
"warranted".  If I am not mistaken, a tape of any sort is only going to be
as useful as the last information written to it if that is the only source
of data, is it not?  Therefore, a full server crash in the late afternoon
with only last night's full backup leaves you SOL for almost a full day's

However, if I am incorrect in my assumption that a tape which contains a
full backup along with differential backups will allow me to rebuild my
server completely and restore it to the point of the last differential then
I would honestly be interested in hearing why. Furthermore, if there is a
way to restore and roll the logs should the server that the logs were on be
completely dead using just a full backup from the night before than I
retract all sarcasm on my part and look forward to hearing how that process
would work. 

-----Original Message-----
From: Kevin Miller [mailto:[EMAIL PROTECTED]]
Sent: Monday, January 07, 2002 12:36 PM
To: Exchange Discussions
Subject: RE: Win2k backup and Exchange

READ IT. Learn it. Love it. Tell it nice things. Sleep with it under you

5.5 DR white paper

2k DR white paper
--Kevinm M, WLKMMAS, UCC+WCA, And Beyond
Drive thru Admin, Would you like Fries with that?

-----Original Message-----
[mailto:[EMAIL PROTECTED]] On Behalf Of Don Ely
Sent: Monday, January 07, 2002 9:26 AM
To: Exchange Discussions
Subject: RE: Win2k backup and Exchange

You've never heard of database logging have you?  In the event of a
restore, when the IS is restored and the transaction logs are replayed,
you have lost nothing.  You can restore right up to the point of
failure.  Therefore your use of Differentials is unwarranted....


-----Original Message-----
From: Michel, David [mailto:[EMAIL PROTECTED]] 
Sent: Monday, January 07, 2002 9:27 AM
To: Exchange Discussions
Subject: RE: Win2k backup and Exchange

I have read it and I want to reiterate that I do plan on doing a nightly
full backup. However, since the Exchange server has it's own tape backup
system, I would also like to do differentials in addition to the full.
Therefore, should a complete crash happen I'm backed up to within an
hour or so of crash time rather than the previous night.

-----Original Message-----
From: McGilligan, Sean [mailto:[EMAIL PROTECTED]]
Sent: Monday, January 07, 2002 12:09 PM
To: Exchange Discussions
Subject: RE: Win2k backup and Exchange


First,I would read the paper disaster recovery.
Second,I would ask the question why can you not do full (normal) backups
every day unless of course your data outstrips your tape size on each
server. I think you are reading into differentials too deeply.
Personally I would recommend Veritas Backupexec as NTBackup is a
stripped down version albeit free, but again it comes down to the horses
for courses and each person can tell a different story where backups are
concerned. My reasoning is the restore times from testing are faster
with Veritas. Whether you want to pay that much more is the question?.

Yours sincerely,
Sean McGilligan

I realize there are no stupid questions but only stupid people who ask
questions so I'll throw my hat into the stupid ring as this is probably
very simple...

I finally got my boss to buy a DLT drive exclusively for each of my
Exchange 2000 servers.  From all I've read here and elsewhere I decided
to use NTBackup rather than ARCServe on my servers.  I cannot, however,
find a way to setup the backups correctly.  I aim to do a nightly full
backup at 11pm with differentials every two hours from 6am until 8pm
when the tape would be replaced for that night's backup.  I see in the
backup wizard how to set the daily backup as a "normal" and how to
schedule a second "differential" backup for only the information store
at my selected times.  However, the option to "append" rather than
overwrite the media is grayed out on the differential.  If this
differential is going to overwrite the full backup then a single tape
source for backup isn't feasible.  I'm sure it is but I'm just missing
something so anything you can offer would be appreciated. ]

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