Target replication
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Target replication

 
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Mike
Guest
Posted: Wed Nov 17, 2004 11:12 pm    Post subject: Target replication Reply with quote
I am having trouble understanding the difference between link target
replication, and root target replication. I have DFS root that contains
files and folders, and it also contains one link to a folder on another
server. I have enable replication on the root target, so I can replicate
that data to another server. Why is this not reccomended? What then si the
purpose of root target replication as opposed to link target replication.

Mike
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Jill Zoeller [MSFT]
Guest
Posted: Thu Nov 18, 2004 12:32 am    Post subject: Re: Target replication Reply with quote
Hi Mike,

Using multiple root servers ensures that the namespace will remain available
if one of the root servers fails. This is the primary purpose of using
multiple root servers/root targets. Although DFS will ensure that the local
DFS structures are present on both root servers, DFS doesn't automatically
pay any attention to any files/folders you happen to store in the root
share, and thus you would need to enable FRS to keep this type of data
sync'd in both shares.

There are numerous downsides to storing data in a root and enabling FRS on
it. For the long version, see the DFS FAQ at
http://www.microsoft.com/windowsserver2003/techinfo/overview/dfsfaq.mspx.
The question you want is called "Q. If I use multiple root targets in a
domain-based DFS namespace, do I need to enable replication on the root?"

The short version is that using replicated links, not roots, gives you more
flexibility and avoids a problem where morphed directories could appear
under the root when it's replicated.

If you want more info about DFS, visit our website at www.microsoft.com/dfs.


--
This posting is provided "AS IS" with no warranties, and confers no rights.


"Mike" <mrfaber@att.net> wrote in message
news:%23KjfOiMzEHA.2540@TK2MSFTNGP09.phx.gbl...
Quote:
I am having trouble understanding the difference between link target
replication, and root target replication. I have DFS root that contains
files and folders, and it also contains one link to a folder on another
server. I have enable replication on the root target, so I can replicate
that data to another server. Why is this not reccomended? What then si
the purpose of root target replication as opposed to link target
replication.

Mike
Back to top
Mike
Guest
Posted: Thu Nov 18, 2004 12:39 am    Post subject: Re: Target replication Reply with quote
You said that it ensures namespace remains available. Isn't the namespace
available in AD?

"Jill Zoeller [MSFT]" <jillz@online.microsoft.com> wrote in message
news:OBSU$ONzEHA.804@TK2MSFTNGP12.phx.gbl...
Quote:
Hi Mike,

Using multiple root servers ensures that the namespace will remain
available if one of the root servers fails. This is the primary purpose of
using multiple root servers/root targets. Although DFS will ensure that
the local DFS structures are present on both root servers, DFS doesn't
automatically pay any attention to any files/folders you happen to store
in the root share, and thus you would need to enable FRS to keep this type
of data sync'd in both shares.

There are numerous downsides to storing data in a root and enabling FRS on
it. For the long version, see the DFS FAQ at
http://www.microsoft.com/windowsserver2003/techinfo/overview/dfsfaq.mspx.
The question you want is called "Q. If I use multiple root targets in a
domain-based DFS namespace, do I need to enable replication on the root?"

The short version is that using replicated links, not roots, gives you
more flexibility and avoids a problem where morphed directories could
appear under the root when it's replicated.

If you want more info about DFS, visit our website at
www.microsoft.com/dfs.


--
This posting is provided "AS IS" with no warranties, and confers no
rights.


"Mike" <mrfaber@att.net> wrote in message
news:%23KjfOiMzEHA.2540@TK2MSFTNGP09.phx.gbl...
I am having trouble understanding the difference between link target
replication, and root target replication. I have DFS root that contains
files and folders, and it also contains one link to a folder on another
server. I have enable replication on the root target, so I can replicate
that data to another server. Why is this not reccomended? What then si
the purpose of root target replication as opposed to link target
replication.

Mike


Back to top
Jill Zoeller [MSFT]
Guest
Posted: Thu Nov 18, 2004 2:33 am    Post subject: Re: Target replication Reply with quote
Yes and no. For domain-based namespaces, DFS metadata is stored (in the form
of objects) in Active Directory and thus on every domain controller in the
domain that hosts the namespace. When a client first tries to access a
domain-based namespace, a domain controller responds to the client by
providing a list of root targets (known as a root referral) that host the
namespace. It's this DFS metadata (along with the DFS Service running on the
DC) that allows the DC to provide root referrals. As long as one DC in the
domain is available, it can provide root referrals. And as long as there is
at least one root target available, the client can access the domain-based
namespace.

Hope this helps! Please ask more questions if you have them.

FYI, this is explained in more detail in the "How DFS Works" link that's
available from the DFS Techref link on www.microsoft.com/dfs.



--
This posting is provided "AS IS" with no warranties, and confers no rights.


"Mike" <mrfaber@att.net> wrote in message
news:O97xVTNzEHA.3840@tk2msftngp13.phx.gbl...
Quote:
You said that it ensures namespace remains available. Isn't the namespace
available in AD?

"Jill Zoeller [MSFT]" <jillz@online.microsoft.com> wrote in message
news:OBSU$ONzEHA.804@TK2MSFTNGP12.phx.gbl...
Hi Mike,

Using multiple root servers ensures that the namespace will remain
available if one of the root servers fails. This is the primary purpose
of using multiple root servers/root targets. Although DFS will ensure
that the local DFS structures are present on both root servers, DFS
doesn't automatically pay any attention to any files/folders you happen
to store in the root share, and thus you would need to enable FRS to keep
this type of data sync'd in both shares.

There are numerous downsides to storing data in a root and enabling FRS
on it. For the long version, see the DFS FAQ at
http://www.microsoft.com/windowsserver2003/techinfo/overview/dfsfaq.mspx.
The question you want is called "Q. If I use multiple root targets in a
domain-based DFS namespace, do I need to enable replication on the root?"

The short version is that using replicated links, not roots, gives you
more flexibility and avoids a problem where morphed directories could
appear under the root when it's replicated.

If you want more info about DFS, visit our website at
www.microsoft.com/dfs.


--
This posting is provided "AS IS" with no warranties, and confers no
rights.


"Mike" <mrfaber@att.net> wrote in message
news:%23KjfOiMzEHA.2540@TK2MSFTNGP09.phx.gbl...
I am having trouble understanding the difference between link target
replication, and root target replication. I have DFS root that contains
files and folders, and it also contains one link to a folder on another
server. I have enable replication on the root target, so I can replicate
that data to another server. Why is this not reccomended? What then si
the purpose of root target replication as opposed to link target
replication.

Mike




Back to top
Mike
Guest
Posted: Thu Nov 18, 2004 3:21 am    Post subject: Re: Target replication Reply with quote
Yes, this was very helpful. It seems like it would create better
availability, and simplicity if the DFS root targets themselves were
available in AD.

Mike

"Jill Zoeller [MSFT]" <jillz@online.microsoft.com> wrote in message
news:%23FHo1SOzEHA.3844@TK2MSFTNGP12.phx.gbl...
Quote:
Yes and no. For domain-based namespaces, DFS metadata is stored (in the
form of objects) in Active Directory and thus on every domain controller
in the domain that hosts the namespace. When a client first tries to
access a domain-based namespace, a domain controller responds to the
client by providing a list of root targets (known as a root referral) that
host the namespace. It's this DFS metadata (along with the DFS Service
running on the DC) that allows the DC to provide root referrals. As long
as one DC in the domain is available, it can provide root referrals. And
as long as there is at least one root target available, the client can
access the domain-based namespace.

Hope this helps! Please ask more questions if you have them.

FYI, this is explained in more detail in the "How DFS Works" link that's
available from the DFS Techref link on www.microsoft.com/dfs.



--
This posting is provided "AS IS" with no warranties, and confers no
rights.


"Mike" <mrfaber@att.net> wrote in message
news:O97xVTNzEHA.3840@tk2msftngp13.phx.gbl...
You said that it ensures namespace remains available. Isn't the namespace
available in AD?

"Jill Zoeller [MSFT]" <jillz@online.microsoft.com> wrote in message
news:OBSU$ONzEHA.804@TK2MSFTNGP12.phx.gbl...
Hi Mike,

Using multiple root servers ensures that the namespace will remain
available if one of the root servers fails. This is the primary purpose
of using multiple root servers/root targets. Although DFS will ensure
that the local DFS structures are present on both root servers, DFS
doesn't automatically pay any attention to any files/folders you happen
to store in the root share, and thus you would need to enable FRS to
keep this type of data sync'd in both shares.

There are numerous downsides to storing data in a root and enabling FRS
on it. For the long version, see the DFS FAQ at
http://www.microsoft.com/windowsserver2003/techinfo/overview/dfsfaq.mspx.
The question you want is called "Q. If I use multiple root targets in a
domain-based DFS namespace, do I need to enable replication on the
root?"

The short version is that using replicated links, not roots, gives you
more flexibility and avoids a problem where morphed directories could
appear under the root when it's replicated.

If you want more info about DFS, visit our website at
www.microsoft.com/dfs.


--
This posting is provided "AS IS" with no warranties, and confers no
rights.


"Mike" <mrfaber@att.net> wrote in message
news:%23KjfOiMzEHA.2540@TK2MSFTNGP09.phx.gbl...
I am having trouble understanding the difference between link target
replication, and root target replication. I have DFS root that contains
files and folders, and it also contains one link to a folder on another
server. I have enable replication on the root target, so I can
replicate that data to another server. Why is this not reccomended?
What then si the purpose of root target replication as opposed to link
target replication.

Mike






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