Hi All,
I currently have Exchange 2010 DAG with 2 nodes and no load balancer. An active node is on-site and the passive node (with manual failover) is at our DR site. Each Server holds all the Exchange roles.
I'm looking at installing a new passive node on-site (containing all the roles).
Questions:
Thanks in advance for your time and help! :)
Amar
AP
Exchange 2010 SP2 2 host DAG.
The mounted database has a clean shutdown state.
I reseeded the database copy and that was sucessful.
However when it tries to do resynchronizing the copy queue length continues to grow and it fails.
I'm also seeing this in the logs
The active copy of Mailbox Database Faculty has a missing or corrupted log file (E030042A9B0.log). To keep this copy healthy, replication will restart at generation 4368817. A full backup must be performed before an incremental backup is possible.
Should I delete the database copy and create a new one and let it reseed?
Hi All.
I have a few questions regarding a deployment that we are planning to do in a new installation. Currently we are running a 4 node Hyper-V 2012 cluster connected to iSCSI storage. The general details are:
Nodes in cluster: 4 / Physical OS: Windows 2012 Datacenter Edition / Storage: iSCSI
iSCSI Storage Network: 172.128.x.x (isolated, not routed)
Production Network LAN: 10.252.x.x
Amount of mailboxes to create: 1000
Exchange Server version: 2013
Virtual Machines: All data is stored on the iSCSI SAN. No local storage can/will be used.
VMs Running Exchange 2013 Mailbox Role (desired): One in blade1 and One in blade2
VMs Running CAS role(desired): One in blade3 and one in blade4
Goals:
1- To balance the load of the users in two MBX VMs (500 mailboxes each)
2- To use 2 CAS VMs to balance load
3- To protect each MBX VM databases in case of failure (with a database copy??)
4- (future) To create a replica/failover on another physical distant site.
Questions:
Should I use DAGs even if I am using a cluster and all data will reside on the iSCSI SAN?
What kind of recommendations exist for such scenarios?
I´ve only seen documents talking about hyperv2008 and exchange 2010 and since there are so many changes in both products, I better ask before i begin setup.
Thanks in advance.
Hi,
As the issue description states, I have a DAG design of two MBX servers (DAG members) in the primary site and one MBX server (DAG member) in the recovery site. The FWS is currently in the primary site.
I want to make sure that if, for example, the primary site is no longer reachable, the single DAG member on the recovery site will take over the task of serving mailboxes and that the mailbox stores will be mounted correctly. Should I create an alternate FSW in the recovery site? What is the best procedure?
Thanks
Jean D.
When i move an active database with "Move-ActiveMailboxDatabase -MountDialOverride:None" in my Exchange 2013 CU1 DAG the source servers ContentIndex gets "AutoSuspended"
If i try to "update-mailboxdatabasecopy -catalogonly" i get:
WARNING: Seeding of content index catalog for database 'DB02' failed. Please verify that the Microsoft Search
(Exchange) and the Host Controller service for Exchange services are running and try the operation again. Error: There
was no endpoint listening at
net.tcp://localhost:3863/Management/SeedingAgent-ABF80EC7-D4D5-4D12-93D8-6B13D8996EC712/Single that could accept the
message. This is often caused by an incorrect address or SOAP action. See InnerException, if present, for more
details..
Restarting services does not help.
Nor did: http://support.microsoft.com/kb/2807668
The only thing making the ContentIndex Healty is rebooting the server...
Any clues?
In the scenario where you have an Exchange 2010 DAG (using Windows 2008 R2 failover clustering) with members servers in two AD sites where "Site A" is the normally active site and "Site B" is the DR site, does Microsoft actually publish any guidance or recommendations as far as using separate subnets in the two sites vs stretching a "Site A" subnet via VLAN?
I think most implementations use separate subnets however I'm aware that some have implemented this using a stretched VLAN. Seems to me that the latter approach is more complicated as well as introducing potential issues during a switchover to "Site B" during a DR - i.e. the DAG member at "Site B" belongs to a subnet (AD site) from the primary data center and all servers (including domain controllers) at "Site A" are down.
Is anyone aware of any specific guidance or recommendations from Microsoft regarding these two approaches.
Not looking for speculation, just some specifics from Microsoft, thanks.
Sam
Problem: Exchange logs are not flushing after backup exec runs full backup.
The backup in backup exec 2010 R3 Is successful. It is also set to do full backup/flush logs
The logs fill up to around 50,000 files or more. How do you fix this?
ENV: exchange 2010 SP2 Rollup 4 Dag.
I see the following in the logs on database server when backup exec is complete.
Information Store (2972) Mailbox Database Faculty: The backup procedure has been successfully completed.
Information Store (2972) There were 75299 log file(s) not found in the log range (D:\Program Files\Microsoft\Exchange Server\V14\Mailbox\Mailbox Database Faculty\E030003BA9C.log - D:\Program Files\Microsoft\Exchange Server\V14\Mailbox\Mailbox Database Faculty\E030004EA5F.log) that we attempted to truncate.
Hi,
What is the bare minimum rights required to backup an exchange database? Everywhere I read, I always come across KBs saying that the account should either be Organization Admin or even worse, Domain Admin. I have a really hard time accepting this as the minimum rights as it would grant way too much power to a single account used by the backup administrator.
I am certain that would provision a new security group with just the proper required cmdlets but I can't seem to find anything regarding this.
Anyone has any insight?
Thanks,
Michel
Exchange 2010 Sp2 Rollup 4
Just rebuilt a database copy.
The status shows "resynchronizing" but the copy queue length is 510255 and growing.
Eventually the status will go to failed.
How do you force the copy queue length to go down?
The mounted database is healthy and has a clean shutdown state!
Hey there,
I currently have a 2 member DAG using a File Share Witness Quorum. I have already experienced the file share go offline and cause problems to my cluster, resulting in a node failure... This may or may not have been completely the fault of the fsw going offline, however it did get me thinking of the alternate quorum methods.
Would it be wise/problematic/other to have a 3 DAG member (in 1 site), but the 3rd member will NOT have any database copies, it will be used for node majority only?
If you can help me understand why this would be a good or bad idea, please do.
ps. a short blunt sentence either way is not helpful.
Environment:
Hardware Load Balancer
Exchange 2010 SP3
2x CAS servers in CAS Array
2x MB servers in DAG
WS2008R2
HyperV VMs
iSCSI Storage
Andrew Huddleston | Hillsong Church | Sydney
I am in the process of setting up an Exchange 2013 Cluster in our organisation.
Already I have a MBX/CAS server on a stand-alone basis.
I now want to create a DAG system, so that we have 2 servers with mailbox server roles. One server shall be active while the other passive.
Should the active server fail for whatever reason, then it should failover to the passive server.
I did some research on how to set this up and have been unable to decide how best tp approach thsi scenario.
I would like to know this - do I just go ahead and create a second MBX/CAS exchange server, then create a DAG on the two?
Or do I need to do it the way we did in Exchange 2010 - 1 cas server, 2 mailbox database servers?
Any help on this shall be appreciated.
This question may sound trivial, but I am not an exchange guru.
Thanks
Hi
Just a little question to verify if I have understood things correct :-)
In 2013, CAS is automatic loadbalanced via AD for Outlook clients? Or?
Only for OWA, ECP, ActiveSync devices I can loadbalancing via eighter, DNS RR, WNLB or a HWLB?
I have set up a testlab at home with 2 cas and 2 mb servers, and the DAG is as expected, but I am in doubt what goes for the CAS, since we don't have a CAS array object anymore. I don't know how Outlook finds the CAS?
BR
Steen
Hi,
I am looking to see is someone can confirm my theory on my setup for my Exchange 2010 DAG setup. I am currently building an active/passive setup. It consists of a two site datacenter setup with site A the active site made up of one mailbox server, two CAS/Hub servers which are load balanced. Site B which is the passive/DR site which too is also made up of one mailbox server, two CAS/Hub servers which are load balanced.
Now the idea here is to span a DAG across the two sites and the two mailbox servers. Now from what I read the FSW should be located in the primary site in this case A. Now being the FSW is in site A if there is a WAN issue or Power Outage quorum would be retained there assuming the servers came back up and or didn't go down. While site B would just unmount its database since it can’t talk to the FSW and thus cannot hold quorum. But if just the database fails on site A then in theory it should activate in site B.
Now something suggested by a colleague of mine was to locate the FSW in another site completely in this case site C. With the theory being that if site A fails i.e. power failure/WAN outage. It loses quorum and because site B is still online and can talk to the FSW it now holds quorum and the databases would mount. But reading the following Exchange team blog:
http://blogs.technet.com/b/exchange/archive/2011/05/31/exchange-2010-high-availability-misconceptions-addressed.aspx
It seems to suggest that would not work. Further to that I was also reading up on DAC mode and came accross the following article:
http://www.exchangeinbox.com/article.aspx?i=172
After reading it I starting to think that I was misinterpreting how my setup would behave. And that because both exchange setups are in completely different sites i.e. in Active Directory/physical locations. This automatic switch over in the event of a full site failure that we were looking to achieve would in fact not happen. That would then lead us to have to perform a data center switch over as outline in countless other technet and blogs posted online.
In in the end is my conclusion correct? Because of the two site set up the whole “automatic” fail over wouldn't occur regardless of the placement of the FSW server? And that the whole automatic failover only applies to mailbox servers within the same site?
All,
Issue while online the cluster resource.
Error Below
Cluster IP address resource 'IPv4 Static Address 2 (Cluster Group)' cannot be brought online because the cluster network 'Cluster Network 2' is not configured to allow client access. Please use the Failover Cluster Manager snap-in to check the configured properties of the cluster network.
I select the "Allow clients to connect through this network" but it automatically unticked again. I am thinking to change the Role value from 1 to 3.
Before doing it via registry is there any way to resolve it.
I have a 250gb Exchange 2007 mailbox that has an offsite SCR target. Replication was healthy until yesterday when I lost my iscsi connection on the target's disk. I have this back now but test-replicationhealth states that log files are missing and I need to use the update-storagegroupcopy cmdlet.
Is there a way to do this without clearing out the entire target and reseeding over the WAN?
Ok, so my server at a well known webhost died for the second time, as they continue to refuse to replace the faulty hard drive I've moved to a new host, and got the new server up and running.
The backup catalogue of the old server was corrupt so can't restore the backup, I was lucky enough to grab the Exchange DB + Logs and have managed to mount it on the new server, whilst the new server is the same domain, obviously AD is seeing things with different GUID etc.
I have managed to get all users back online with email etc, however I need to recover their old email, 1 in particular, with the mailbox mounted and all healthy, how can I get Exchange 2013 to extract the Mailboxes from the old mounted EDB either by coping the mailbox or exporting as a PST. The mailboxes are not disconnected or deleted, they are in effect hanging in space. I've tried New-MailboxExportRequest (or what ever it is again) but that is only exporting the New Mailbox from the new EDB.
I am trying to do this for one mailbox only, so do not want to invest in 3rd party tools.
I have Exchange 5.5 running on a NT 4.0 machine; exchange is not starting up and in event log I am getting an Event ID 124 (263) Unable to read the log header. Error -1022.
I do not have a good back-up
Thank you,
Matthew
Hi,
I've trying to create a Exchange 2013 DAG, but can't had the second node. I'm using a single NIC in both servers. I know its not the best solution but, it is supported.
One server is a VM on VMWARE the other is a VM on HYPER-V. Can this be the problem, since the virtual nics are different?
I've looked at everything I can find online. I've tried to add the 2nd node throw the Failover Cluster Manager, but no luck.
Can someone help me?
Thanks
JP
I get the following log file:
[2013-07-23T22:17:44] Working