Hi,

we have 4 Servers, 2 Mailbox Servers and 2 Database SErvers with DAG deployed on Exchange 2013 CU5.

We have about 420 GB in one database.

The Server has 40 GB Memory assigned (Windows VM), but only using about 12 GB of Memory.

Depending on this guide, this makes sense:

http://blogs.technet.com/b/samdrey/archive/2014/02/03/exchange-2013-memory-ram-allocation-by-the-store-with-an-example.aspx

But, as this is only a database server with no other services on it, how can i increase the memory consumed by Exchange?

User are reporting of slow Outlook Clients.

Hi

Exchange will increase memory as it needs it. Perhaps look at the network speed first rather than the memory usage. If users are complaining its slow it sounds like a network bottleneck somewhere.

Hi,

thanks for your answer. But 420 GB Database and arround 400 mailboxes and only this memory usage:

Are the Outlook clients in online mode?

This may help: ( see the solution)

http://social.technet.microsoft.com/Forums/en-US/a07b9269-be9f-4337-a394-9faf532d38f8/exchange-2013-online-mode-slow-performance?forum=exchangesvradmin

http://social.technet.microsoft.com/Forums/office/en-US/0d45b1b0-3047-4666-ad04-217e98ed8823/slow-online-mode-browsing?forum=exchangesvrclients

Also, you may want to apply this hotfix to the servers:

http://support2.microsoft.com/kb/2985459

The W3wp.exe process has high CPU usage when you run PowerShell commands for Exchange

This is a hosted environment, all users are connection using outlook anyhwere.

Cached Mailboxes are no problems, but online mailboxes take alot of time. 

When a user moves a message (10 kb) from his cached mailbox to an online, shared mailbox, i can take up to 10 minutes?

This is a hosted environment, all users are connection using outlook anyhwere.

Cached Mailboxes are no problems, but online mailboxes take alot of time. 

When a user moves a message (10 kb) from his cached mailbox to an online, shared mailbox, i can take up to 10 minutes?

Ok, then see the links I provided above for the client side registry tweaks and see if that makes a difference.

Hi ,

  Already ED has given the clear explanation . In addition to that please have a look in to the below mentioned blog and check whether it helps you .

http://social.technet.microsoft.com/Forums/exchange/en-US/7f252198-16cc-41c0-a5a6-5d0b51982e42/outlook-2010-exchange-connection-status-directory-fail

Same time please tell me how outlook clients are connecting to exchange server. Whether the outlook connection is going via Load Balancer or directly to exchange server

Regards

S.Nithyanandham

Hi ,

  Already ED has given the clear explanation . In addition to that please have a look in to the below mentioned blog and check whether it helps you .

http://social.technet.microsoft.com/Forums/exchange/en-US/7f252198-16cc-41c0-a5a6-5d0b51982e42/outlook-2010-exchange-connection-status-directory-fail

Same time please tell me how outlook clients are connecting to exchange server. Whether the outlook connection is going via Load Balancer or directly to exchange server

Regards

S.Nithyanandham

Hi ,

Please do the below mentioned steps on the problematic machine to differentiate the issue is on exchange or else on LB .

Definitely you would be having an cluster name and cluster ip for you LB device and also you would have have configured a Host A record in windows dns .

In the problematic machine please open the local etc file and put the the host record for the cluster name like below to make our outlook client to communicate directly to our exchange server instead of connecting via LB.

mail.mydomain.com    ip address of the exchange server .

On this scenario i am assuming mail.mydomain.com as the cluster name.

Then please ask the user to use it for some hours .Then we can segregate the issue is on exchange or in LB.

Regards

S.Nithyanandham

Hi ,

  Already ED has given the clear explanation . In addition to that please have a look in to the below mentioned blog and check whether it helps you .

http://social.technet.microsoft.com/Forums/exchange/en-US/7f252198-16cc-41c0-a5a6-5d0b51982e42/outlook-2010-exchange-connection-status-directory-fail

Same time please tell me how outlook clients are connecting to exchange server. Whether the outlook connection is going via Load Balancer or directly to exchange server

Regards

S.Nithyanandham