CAS/MBX reboot best practices.

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S

Sam Booka

Hi, I have to reboot my MBX and CAS servers tonight for more memory. We have two CAS servers in NLB and two MBXs in DAG.

Is there a best practice to rebooting the servers? Drain stop on the CAS server? Move active MBX copies before rebooting? Or let the shutdown process take its course.

Thanks
Drew
 
S

Sembee [MVP]

If you have CAS in NLB, then those can just be rebooted one after the other, it will let you confirm the NLB works correctly. No need to do anything special with the CAS.
For the DAG, reboot the server with the passive databases on it, then switch the active database to that server and reboot the other one.

Simon.

Simon Butler, Exchange MVP
Blog | Exchange Resources
 
J

Justin.King

Possbily silly, but I assume you are adding memory? If not, remeber that as 64bit systems Exchange _will_ consume all the memory it can, and it's not a memoy leak or anything negative to see it eating up all your memroy.

I only bring this up because I get asked this a lot for whatever reason.
 
S

Steve Goodman

Just to add, you can use StartDagServerMaintenance.ps1 and StopDagServerMaintenance.ps1 (more info ) to move active mailbox copies whilst performing maintenance. Are any of those CAS running the FSW? If so, you may want to do this server last.

Steve

Steve Goodman
Check out my Blog for more Exchange info or find me on Twitter
 
B

Brian Day MCITP

Depending on how invasive you want to be to the users, you can consider drainstopping the CAS server before rebooting it.Microsoft Premier Field Engineer, Exchange
MCSA 2000/2003, CCNA
MCITP: Enterprise Messaging Administrator 2010
Former Microsoft MVP, Exchange Server
My posts are provided "AS IS" with no guarantees, no warranties, and they confer no rights.
 
B

Brian Day MCITP

Document any DBs that were activation blocked before running StartDagServerMaintenance,ps1 because they'll no longer be blocked after you run those scripts.Microsoft Premier Field Engineer, Exchange
MCSA 2000/2003, CCNA
MCITP: Enterprise Messaging Administrator 2010
Former Microsoft MVP, Exchange Server
My posts are provided "AS IS" with no guarantees, no warranties, and they confer no rights.
 
S

Sam Booka

Ok.. I will look at the scripts. I am doing this off hours so as not to be a PITA to the users.

I dont think I have anything activation blocked.

Yes.. we have 4GB ram on both CAS and MBX servers. No issues yet but bumping to 8 before it becomes an issue. I have noticed that with 25 or 250 users memory usage has not changed. Thanks for the heads up tho :)

The CAS with the FSW is not getting touched yet. We need to free up a little more memory on that esx host.

Thanks :)

Drew
 
S

Sam Booka

I had one DB I couldnt fail over. Since there was no one in it (just test accounts) I rebooted the server and it DID mount successfully on the passive node. Funny that. Otherwise everthing went fine.
Thanks
Drew
 
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