Re: question about NTBackup

From: Enkidu (enkidu_at_xyzcliffpxyz.com)
Date: 07/11/04 

Date: Sun, 11 Jul 2004 17:23:57 +1200

On Sun, 11 Jul 2004 03:47:38 +0400, "Alexander Suhovey"
<asuhovey@hotmail.com> wrote:

>Hi Enkidu,
> Few comments:
>
>> Firstly, to the OP, I don't see much point in backing up System State
>> by itself. If you are going to back it up, why not back up the whole
>> lot? Maybe that is what you are doing.
>
>Can't say I understood this. If the task is to backup AD then you backup a
>System State which includes AD. Why (and what is) a whole lot?
>
The point is that the DC is presumably doing something else as well,
apart from running AD. The discussion is around backing up System
State alone. If you have a DC that is *only* doing AD, then on
failure, it would probably be easier to re-install from scratch and
let AD replication take care of bringing it up to date with any AD
changes. If it is doing something else as well then backing up only
the System State will miss out the other stuff.
>
>> the backup to avoid swamping the network. Two one hour backups running
>> together might take three hours if you are unlucky enough to have a
>> congested network.
>
>Why should a network be congested when backup takes place (probably off-peak
>period)? Even if it is not off-peak then what is this a network which can be
>congested by copying two files over it at the same time...
>
>I feel that your intention was to show that ntbackup is a basic backup
>solution which does not comply most of enterprise needs. First I will agree.
>But not second. NTBackup is like a screwdriver. A simple thing, yes. Yet a
>useful enough to do it's job.
>
Not at all. I use NTBackup and another product. It's horses for
courses and NTBackup is sufficient for many uses. I'd not rely on it
over a network however. Except possible for one off backups.

Cheers,

Cliff
>
>"Enkidu" <enkidu@xyzcliffpxyz.com> wrote in message
>news:r1t0f0t1sc7a1ulj5bgktnbn08i1v12cef@4ax.com...
>> On Sat, 10 Jul 2004 08:14:01 -0400, Jerold Schulman <Jerry@jsiinc.com>
>> wrote:
>>
>> >On Fri, 9 Jul 2004 11:57:42 -0700, "chrism" <chris@no_spam> wrote:
>> >
>> >>
>> >>Does this mean that I have to back up the System State on each domain
>> >>controller individually by using its
>> >>own individual version of NTBackup ?
>> >
>> >Yes
>> >
>> >I would back it up to a file and then backup the file with NTBackup.
>> >>
>> >>Also, by saying "NTBackup only supports *local* backups of AD", does
>this
>> >>mean that I can only back up
>> >>the system state on that domain controller to its local drive ?
>> >
>> >No. You could back it up to a local tape or to a file over the network.
>> >
>> Just a couple of comments.
>>
>> Firstly, to the OP, I don't see much point in backing up System State
>> by itself. If you are going to back it up, why not back up the whole
>> lot? Maybe that is what you are doing.
>>
>> Secondly, to the OP, backing up over the network works fine but as
>> Jerold says there is no way, using NT Backup to back up System State
>> using NTBackup over the network. Other products do do this (eg Veritas
>> BE), by running an agent on the remote machines.
>>
>> Thirdly, to the OP, consider the implication to the network of backing
>> up to a network file, or backing up to a local file and then backing
>> up the backup file over the network. That's exactly what I do for some
>> of my machines, and it works fine. However if you have to backup more
>> than a couple of machines, you will probably need to stagger schedule
>> the backup to avoid swamping the network. Two one hour backups running
>> together might take three hours if you are unlucky enough to have a
>> congested network.
>>
>> Cheers,
>>
>> Cliff
>

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