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Questions tagged [dag]

A database availability group (DAG) is the base component of the high availability and site resilience and is a boundary for mailbox database replication.

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Exchange 2010 DAG DAC mode would prevent having some databases active on secondary site?

If I have a two nodes Exchange 2010 DAG stretched over two sites with DAC mode enabled and all databases active on primary site, I would still be able to activate some databases on the secondary site without do a complete datacenter switchover?
Danilo Brambilla
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Will Forefront 2010 Antispam/Antivirus protection work on all-in-one Exchange 2010 servers in DAG

We have 2 Exchange 2010 servers with every single role on each. Servers are in DAG mode and they have TMG 2010 as entry point and doing as load balancer. Can I install Forefront 2010 on both Exchange servers and have Anti spam protection? I read…
MadBoy
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Witness directory location in a two-server Exchange 2010 scenario with DAG

I am going setup a DAG in a brand new single-site two-server Exchange 2010 SP1 configuration, with both servers running CAS/HUB and MAILBOX roles and hardware-balanced CAS (no Edge roles nor Unified Messaging at all). I have read about this…
Danilo Brambilla
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What topology to choose for 2 locations with 2x Exchange 2010 licenses (with more to be bought eventually?

We want to introduce Exchange 2010 in our organization. We have 2 locations: Main location has 2 ISP links used with one Forefront TMG 2010 (100 people on site) Second location has 1 ISP link with normal router (from 5 to 20 people on site,…
MadBoy
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DAG: Configuration refresh failed with the following error: the metadata failed

I have two mailbox servers in exchange 2019 and I have installed DAG . I have set the static IP address for Dag and the process is ok ( Active and Passive Databases ) . But after failing one server and moving the Databases to other server , I get an…
pooya hejabi
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DAG failover during the backup

I've 2 Windows servers R2 hosting Exchange 2013 in DAG. Every night during backup time ( 1:00 a.m) users notice unavailability of OWA (endless mailbox loading) or they can successfully login but can't see any messages or send mail. Also during that…
Никита
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Emails sent from Server1 reaches the destination from Server 2

Question Outbound emails sent through EXCH-S01 or EXCH-S02 are always routed to EXCH-S02 before leaving the organization network in Exchange 2010 DAG. Why? Configuration This is a simple DAG with two exchange servers and a fileshare witness (not…
Lordbalmon
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Exchange DAG 2013 force node to keep mounted database

Please do help us with this critical issue. We have 2 node DAG, one of the MB server has issues on the physical host itself and keeps hanging. All the databases has copies on 2 MB servers. But when this MB2 server gets hanged the database shows…
user3827
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Exchange Server 2013, Database Availability Groups, NAT, and High Availability

Dilemma here I want a high availability/failover solution for people accessing outlook anywhere or exchange from outside the network. I have 2 exchange servers (EXCH1 and EXCH2) that have Exchange 2013 on them. They are both on Windows Server 2012…
Kevin
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Users connecting to the DR Exchange 2013

Basically we have a Main Site Exchange 2013 with CAS and Mailbox Roles and supposedly all users connect to this exchange from their Outlook. Now we installed an other Exchange 2013 at the DR site.. Our main office and the DR site are connected with…
StefanGrech
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Error while creating backup database copy of Exchange 2013 on DAG.

Created a DAG for Exchange 2013 between two mailbox servers. Server 1 is main , Server 2 is connected via Cisco VPN client to Server 1 network. Trying to start the seeding process to create a backup copy of the mailbox to Server 2. Get the…
Bahrain Admin
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Add a second Exchange 2010 server to enable upgrade to SP3

One of our customers has 1 (virtual) Windows Server 2008-R2 Enterprise which is a root DC with Exchange 2010 SP1. They want to upgrade Exchange to SP3 so they can easily migrate to Office 365. Since there is no proper backup, and according to…
user3878
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MPLS outage on a 4 member DAG causes Exchange / Outlook to hang

We have two sites, with two servers in each one. DAC Mode (Datacenter Activation Mode) is enabled. One peculiar thing about this network is that the Primary and the Alternate shares are set to the same value [PS]…
makerofthings7
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In Get-Mailbox, (Exchange 2010) why would the servername change and how can I correct it?

I have a 4 node DAG in 2 sites. All databases are mounted in Site 1. For some reason the "servername" property in "get-mailbox" is causing an issue with MAPI based software such as Goodlink. Specifically, the servername property has the name of the…
makerofthings7
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Is there any MSFT documentation that says RpcClientAccessServer should not be Internet-accessible?

This answer says that the RpcClientAccessServer can cause Outlook to "act slow" if it can be resolved from the Internet (assuming Outlook Anywhere is being used). Is there any documentation that verifies this claim?
makerofthings7
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