Why use circular logging if they are backing up every night? I would turn
that off. Otherwise, if it works, you have pointed out the risks, and they
find this acceptable, then go with it...
Aaron
-----Original Message-----
From: Benjamin Scott [mailto:[EMAIL PROTECTED]]
Sent: Friday, August 31, 2001 1:24 PM
To: Exchange Discussions
Subject: Very small servers (was: A good space for the Exchange ...)
On Fri, 31 Aug 2001, Daniel Chenault wrote:
>> I thought that if you lost the logs, there was a procedure to at least
>> restore the data in the Stores? Yeah, you lose anything that wasn't
>> committed, of course, but can't you recover something?
>
> Yes, there is. In my world of support, though, lost data ==
> unacceptable.
Everything is relative. The company I work for supports very small
businesses (no more than 50 people, usually less than 20) and SOHO
enviornments. One of our most common "new customer" scenarios is when the
office has finally grown to the point where they need to buy their first
dedicated network server.
In that sort of situation, you cannot justify stand-by servers for
restores and recovery. Hell, we usually have to argue just to get them to
buy a tape drive.
Now, consider this configuration: NT 4.0, Exchange 5.5, with patches kept
current. Single server for everything -- file, print, mail, backups, etc.
Either a single non-redundent disk, or two disks as a single mirrored
volume. All files, databases, database logs, etc., on the same disk.
Circular logging turned on. It gets backed up every night to tape -- often
a full backup every night. Multiple tapes are used in rotation (father/son,
etc.).
The customer is fully aware that hardware failure will likely result in
permenently losing the changes made since last night's backup. It is
considered an acceptable risk.
My belief has been that this scenario should work. While performance is
far from the theoretial ideal, there is nothing that would cause data
corruption or system failure. If a catestrophic failure occurs (e.g., dead
disk), once the failure is corrected, we should be able to recover to the
point of the previous night's backup.
Is my belief correct, or are there additional factors that I am not aware
of?
--
Ben Scott <[EMAIL PROTECTED]>
| The opinions expressed in this message are those of the author and do not
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| necessarily represent the views or policy of any other person, entity or
|
| organization. All information is provided without warranty of any kind.
|
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