|
Hi Mike, My apologies, I did
not realize that you were only changing the heartbeat IP ( I should have caught
that when you stated private ). Here at Intel, we run Microsoft Network Load
Balancing, NLBS. The NLBS interface is called private ( How the clients connect
), and the internal interface is called public which confused me. Sincerely, Jose Medeiros "Anyone who has
never made a mistake has never tried anything new."
Albert E
From:
[EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mike Newell Hey Jose, I need to change the IP on the two network
cards that the servers use to monitor the heartbeat between them. Each server
in the cluster has two NIC’s in them, one for monitoring the heartbeat
between them (private), and one for the internal LAN. We have just added an office that shares
the same subnet as the private side of the cluster so no one in that office can
see the cluster. I don’t need to change the IP’s on the LAN side of
the servers or change the VIP used for the cluster. I was hoping that it would only affect the
communications between the servers and not fail over or prevent anyone from
accessing the cluster. My thought was that I could just change the IP on each
server and after a few seconds the clustered servers would see each other again
and continue to function normally. Again, I really appreciate the help. From:
[EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Medeiros, Jose Hi
Mike, I am
not sure what your project involves and you fail to mention why you are doing
this. Are you moving the cluster to a new switch? Replacing the Router? Why are
you making this change? It
will take several minutes for your ARP table on the router or routers to be
updated unless you enable “Gratuitous Arp “, and since your clients
connect via name lookup to IP address mapping, you probably will have
disconnects, and may want to manually tombstone the record on your WINS
servers, not to mention your DNS record will need to be updated on your DNS
servers, unless you are in a small environment and have very few DNS servers (
I am not sure how long Microsoft’s DNS takes to replicate via AD
integrated DNS but the default time for AD replication between DC’s is 5
minutes ). Also
these articles may be helpful to you: MAC Address Changes
for Virtual Server During a Failover with Clustering
http://support.microsoft.com/?kbid=244331 Behavior of http://support.microsoft.com/kb/199773/EN-US/ To
be safe I would notify your IT customers of this change and plan on doing this
during non business hours. Let
me know how every thing works out, I am curious to see what issue’s you may
find. Sincerely, Jose Medeiros "Anyone who has never made a mistake
has never tried anything new."
Albert E
From:
[EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Thanks Jose, This is just going to
affect the private IPs in the cluster so no name resolution issues will come
into play. This helped a lot. It
lead me to http://support.microsoft.com/kb/241828/
which is pretty clear. I’m looking at some downtime on the cluster and
that’s what I needed to know. I was *assuming* that when I changed the IP
on both private interfaces the cluster would come back up and there would be no
downtime but it looks like that’s not going to be the case L Last quick question. The
article states there may be a failover if I change the IP and subnet. Do you
think the cluster will fail over if I just change the IP and don’t change
the subnet? Thanks again, I
appreciate the help. From: Jose
Medeiros [mailto:[EMAIL PROTECTED] Hi Mike, I've only had to change a SQL 2000
Active / Active Cluster IP and it involves some additional steps for SQL
Virtual Names. It's been over 5 years since I built an Exchange 2000
cluster, but I do not recall if Exchange has any dependencies (I would probably
post this to the Exchange list and I am cc'ing them as well) Take a look at : Exchange Server 2003 Cluster Configuration
Checklist Changing the IP address of network
adapters in cluster server Or in PDF format at: http://www.maned.com/support/knowledge_base/Roundhouse/Recommended_Reading/Q230356.pdf Also just in case you ever have to
change it on a SQL: How to change the network IP
addresses of SQL Server virtual servers Hope this helps,
Jose Medeiros -------------------------------------------------------------------------------------------- ----- Original Message ----- From: " To: <[email protected]> Sent: Sunday, June 04, 2006 12:53 PM Subject: [ActiveDir] Change private
IP on a cluster Doh! Didn't mean to let this go without the OT:. Sorry. |
- RE: [ActiveDir] Change private IP on a cluster Mike Newell
- [ActiveDir] Change private IP on a cluster Medeiros, Jose
- [ActiveDir] Change private IP on a cluster- reply Medeiros, Jose
