Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium

x
?
Solved

Exchange mailbox mounted incorrectly

Posted on 2014-07-18
6
Medium Priority
?
241 Views
Last Modified: 2014-07-18
Somewhere in the middle of the night our exchange servers are mounted incorrectly. As a result phones and owa fail to work. To fix we just reboot ctexch02

Screenshots.
http://i.imgur.com/cWMoypS.jpg incorrect
http://i.imgur.com/kT9WCsI.jpg correct

What are some things I could look into
0
Comment
Question by:stlhost
  • 3
  • 3
6 Comments
 
LVL 19

Expert Comment

by:Adam Farage
ID: 40204561
I would recommend looking at the Event Viewer: Application logs to see why the databases failed over, and the maybe post some of the errors here. It could be a number of things such as:

- Server (active) rebooting
- transient networking error between the active manager and the active mailbox role
- disk IO latency was too high

The Event Viewer: Application logs is a good place to start, and as you see things you do not understand post them here and we can help further.
0
 
LVL 2

Author Comment

by:stlhost
ID: 40204670
I see this

Cluster node 'CTEXCH01' was removed from the active failover cluster membership. The Cluster service on this node may have stopped. This could also be due to the node having lost communication with other active nodes in the failover cluster. Run the Validate a Configuration wizard to check your network configuration. If the condition persists, check for hardware or software errors related to the network adapters on this node. Also check for failures in any other network components to which the node is connected such as hubs, switches, or bridges.

Next Event
Active Manager failed to mount database publicfolderdb01 on server CTEXCH01.ctitle.local. Error: An Active Manager operation failed. Error: The database action failed. Error: An error occurred while trying to select a database copy for possible activation. Error: The database 'publicfolderdb01' was not mounted because errors occurred either while validating database copies for possible activation, or while attempting to activate another copy. Detailed error(s):


        ctexch01:
        Server 'CTEXCH01.ctitle.local' is not up according to the Windows Failover Cluster service.
        .

So is this saying that ct1 was down?
0
 
LVL 19

Expert Comment

by:Adam Farage
ID: 40204839
It sounds like a networking issue, which is my second point above. I would look into your networking stack and also the server itself, make sure all updates are installed and see if you have any errors on the switches during this timeframe (e.g: CRC incoming / outgoing errors).
0
Concerto's Cloud Advisory Services

Want to avoid the missteps to gaining all the benefits of the cloud? Learn more about the different assessment options from our Cloud Advisory team.

 
LVL 2

Author Comment

by:stlhost
ID: 40204859
They are both virtualized and both on the same box actually. A total of 9 Vms are running on that server. If any of them were unable to ping our monitoring system would pick it up and send us an alert.  Any other ideas?
0
 
LVL 19

Accepted Solution

by:
Adam Farage earned 2000 total points
ID: 40204864
its not a question of them being "offline" but either they cannot communicate to each other due to a transient error on the network, or the disk IO was so high (or other system resources) that the "keep-alive" RPC request from the active manager was not responded to in enough time from the active database.

Look at the stats for the server from that time.. but I am not saying it was down, but the errors do say about that for whatever reason the keep alive RPC packet was not responded too, or not in enough time.
0
 
LVL 2

Author Comment

by:stlhost
ID: 40204908
Ohhh I got it. Thanks I'll start looking there.
0

Featured Post

Efficient way to get backups off site to Azure

This user guide provides instructions on how to deploy and configure both a StoneFly Scale Out NAS Enterprise Cloud Drive virtual machine and Veeam Cloud Connect in the Microsoft Azure Cloud.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Among the most obnoxious of Exchange errors is error 1216 – Attached Database Mismatch error of the Jet Database Engine. When faced with this error, users may have to suffer from mailbox inaccessibility and in worst situations, permanent data loss.
I’m willing to make a bet that your organization stores sensitive data in your Windows File Servers; files and folders that you really don’t want making it into the wrong hands.
In this Micro Video tutorial you will learn the basics about Database Availability Groups and How to configure one using a live Exchange Server Environment. The video tutorial explains the basics of the Exchange server Database Availability grou…
Exchange organizations may use the Journaling Agent of the Transport Service to archive messages going through Exchange. However, if the Transport Service is integrated with some email content management application (such as an antispam), the admini…
Suggested Courses

581 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question