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configuration storage server failover

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configuration storage server failover - 10.May2005 8:11:00 AM   
theRob

 

Posts: 103
Joined: 31.Aug.2003
From: The Netherlands
Status: offline 		I installed the configuration storage server on a DC.
Is it wise to install an additional configurtion storage server, this because we have now a single point of failure?
Post #: 1
RE: configuration storage server failover - 10.May2005 11:03:00 AM   
tshinder

 

Posts: 50013
Joined: 10.Jan.2001
From: Texas
Status: offline 		Hi Rob,

If you have resources, its always a good idea to have a second CSS.

HTH,
Tom

(in reply to theRob)
Post #: 2
RE: configuration storage server failover - 10.May2005 1:07:00 PM   
big_dazza

 

Posts: 506
Joined: 24.Apr.2003
Status: offline 		If you are worried about single points of failure, just putting a second CSS server won't be enough. You need to think about how clients connect to the second CSS server when server1 dies! A few options are NLB and DNS RR. After alot of testing I think that DNS RR is best. Your clients should resolve a virtual name (say "array1"). In DNS, create two A records for "array1" and give one the ip address of server1, and the other the IP address of server2. This way, when server1 dies, web proxy clients (after about 5 seconds) connect to server2. Firewall clients just normally need to restart their winsock app. NLB may take this restart issue away, but Tom has said that you can get issues with NLB and FW clients.

(in reply to theRob)
Post #: 3
RE: configuration storage server failover - 10.May2005 1:16:00 PM   
tshinder

 

Posts: 50013
Joined: 10.Jan.2001
From: Texas
Status: offline 		Hi BD,

I was thinking in terms of putting the CSS on a box that isn't a member of the firewall array. That's what I always do for non-cash strapped orgs. Works nicely!

HTH,
Tom

(in reply to theRob)
Post #: 4
RE: configuration storage server failover - 10.May2005 3:03:00 PM   
big_dazza

 

Posts: 506
Joined: 24.Apr.2003
Status: offline 		How does that work then Tom? What's the benefit? Interested to know in case of benefit to us.

(in reply to theRob)
Post #: 5
RE: configuration storage server failover - 12.May2005 12:46:00 PM   
theRob

 

Posts: 103
Joined: 31.Aug.2003
From: The Netherlands
Status: offline 		In the isa array you can configure a second css server.
Can i just install one? Or are there some things i have to keep in mind.

(in reply to theRob)
Post #: 6
RE: configuration storage server failover - 16.May2005 1:05:00 AM   
theRob

 

Posts: 103
Joined: 31.Aug.2003
From: The Netherlands
Status: offline 		second server is installed, but it seems that there is no synchronisatinon between the primary server and the backup???
Where can i monitor that?

(in reply to theRob)
Post #: 7

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