I'm having some issues where my Outlook clients hang when connecting across servers. My setup is a Netscaler balancing two multirole servers. If the user is balanced to EXC1 and their mailbox database is active on EXC1 then it's no problem
and everything works as normal. If the users mailbox is still active on EXC1, but the user is balanced to EXC2 then there is about a 30-60 second delay where Outlook hangs and is unable to connect. I see this same problem in OWA. Any insight
would be much appreciated.
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Slow cross connection - Exchange 2013
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DAG Performance Between Sites
I have a three member Exchange 2010 DAG. Two members (MB1,MB2) are in Site A, and the third member (MB3) is in Site B.
I have a Riverbed Steelhead WAN Optimizer in both Site A/B.
I'm replicating from Site A to Site B.
I can see that replication traffic is going through port 64327 on MB1 and that ports 59090,59091,59092 and 59111 used on MB3. I have a connection for each mailbox database.
Compression is disabled in the DAG. We have a 100MB MPLS. We are getting 300MB to 400MB LAN throughput with the Riverbed using the full 100MB MPLS.
Now when I add a 5th mailbox database copy from MB2 to MB3, I see that port 64327 is being used on MB1, but the port on MB3 is 16125. Now, I only see 6MB being used in the MPLS instead of closer to 100MB. Riverbed is still providing the same
reduction rate.
I saw the port change on MB3 from 59000 to 16000. Is this the issue?
Anything else to look at?
Thanks
Ron
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Options in Exchange Server 2013 to search old emails from backup
Hi All,
We have a requirement on searching individual emails for a particular user on the mentioned date from tape/storage backup. Is it possible to set that up in exchange server while taking backup in that way? or is it completely related to backup utility what we are using? Please help.
Thanks
Jey
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Mailboxes active in two different DAG members
Hi,
In troubleshooting some issues with a 2007-2013 migration (we are now in co-existence). I see the following (I truncated the mailbox lists):
[PS] C:\scripts>get-mailbox -filter {servername -eq "EX03"}
Name Alias ServerName ProhibitSendQuota
---- ----- ---------- -----------------
Todd Bowles tbowles ex03 Unlimited
….
[PS] C:\scripts>get-mailbox -filter {servername -eq "EX04"}
Name Alias ServerName ProhibitSendQuota
---- ----- ---------- -----------------
Matt Smith msmith ex04 3.6 GB (3,865,470,976 bytes)
The issue is that EX03 holds the mounted copy of the database. Shouldn't EX04 not have any mailboxes listed as it holds the standby database in the DAG?
The issue I was trying to troubleshoot is that there don't seem to be any organizational mailboxes in the 2013 environment. get-mailbox -Arbitration returns nothing. Could these have been deleted when I deleted the default database?
Thank you,
Kurt
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How to fix a split brain scenario in Exchange
Hi guys i was wondering, In the event of a datacentre failover where DAC was not enabled and thus Split Brain occurred when the sites were back online. How would you go about fixing a situation like this?
Thanks.
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Moving a multi-role Exchange 2013 box between AD sites
I have two AD sites, HQ and DR, with separate IP subnets, linked over site-to-site VPN. Each site has a DC with DNS server.
I have a multi-role Exchange Server 2013 box. When I move it from HQ to DR, making correct IP address change with local DNS server, connection to mailboxes using OWA or Microsoft Outlook does not work. Issue was CAS server.
Resolution I found was to change the AutoDiscoverSiteScope attribute for the ClientAccessServer schema setting so it is authoritative for both sites:
Check AutoDiscoverSiteScope and set for both sites
Get-ClientAccessServer | ft name,AutoDiscoverSiteScope
Name AutodDiscoverSiteScope
---- ----------------------
SRV-EXC {Site1}
Set-ClientAccessServer SRV-EXC -AutoDiscoverSiteScope Site1,Site2
Get-ClientAccessServer | ft name,AutoDiscoverSiteScope
Name AutodDiscoverSiteScope
---- ----------------------
SRV-EXC {Site1, Site2}
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Updating Exchange 2013 DAG Servers using CAU
Hi
I have 3 test 2012R2 servers with Exchange 2013, one CAS and two MDB with DAG configuration.
I try to automate install windows update on DAG servers using Cluster Aware Updating.
CAU configuration pass all tests.
I wrote simple PS script to move active database copy to another DAG member to run preupdate
add-pssnapin Microsoft.Exchange.Management.PowerShell.E2010
$computer = gc env:computername
Move-ActiveMailboxDatabase -Server $computer
CAU failed updating while runing preupdate script on node
In event viewer I have this error
CAU run failed on node VM-MDB-02. Details: Microsoft.ClusterAwareUpdating.ClusterUpdateException: Error records were returned from this script: "c:\scripts\PreUpdateScript.ps1"
at MS.Internal.ClusterAwareUpdating.ScriptManager._ThrowIfError(PowerShell shell, String scriptName)
at MS.Internal.ClusterAwareUpdating.ScriptManager.ExecuteFile(String scriptPath)
at Microsoft.ClusterAwareUpdating.Commands.InvokeCauRunCommand.<>c__DisplayClass56.<_ProcessNode>b__48()
at System.Threading.Tasks.Task.Execute()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.ClusterAwareUpdating.Commands.InvokeCauRunCommand.Retrier.<>c__DisplayClass91.<<RetryAsync>b__90>d__93.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
at Microsoft.ClusterAwareUpdating.Commands.InvokeCauRunCommand.Retrier.<RetryAsync>d__96`1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.ClusterAwareUpdating.Commands.InvokeCauRunCommand.<_ProcessNode>d__5c.MoveNext()
What am I doing wrong ? Thanks for all answers.
Regards
Piotr Walkowiak
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DAG mailboxes keep randomly failing over
Hi there,
I've been banging my head against for a while now. We have a "IP less" Exchange 2013 SP1 DAG that's been going great for over a year now. I've noticed that randomly all the databases will failover at various times throughout the day. We've looked into recent changes and nothing seems to stand out.
Here is the results of our CollectOverMetrics.ps1. I can see the failover was automatic and caused by a "PeriodicAction". Any idea where I can dig into next to find this root cause?
- We've looked into the AV - disabled as a test
- We've looked at the backup agent in the server - disabled as a test
Any ideas or suggestions?
Update#1 - Noticed we had several Health check mailboxes that were corrupted similar to the post below. Went through steps to recreate them mentioned in the linked post.
Update#2 - I looked into the "IP less DAG" networking and noticed that it auto configured with replication $true on the ISCI network (105 network). I disabled replication on that network so it simply uses the "MapiDagNetwork"
instead. Tested failing over/back a db, seems to be ok so far. I somewhat inherited this with not much Exchange knowledge, trying my best to work through it. I will have to see if any more random failovers occur. I will update this thread with more info if
the issue is resolved or if another failover occurs.
Before
After
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Recover Exchange 2007 after Migration and Coexistence with 2013
I recently upgraded exchange 2007 to 2013. I ran a coexistence until all the mailboxes were migrated. Everything was working great until the database volume on the 2013 server died. I lost the entire migrated database without time to make a backup. The old database is still in its original location and the 2007 server is still fully intact, but all configurations point to the 2013 server.
Is it possible to restore the original 2007 server with the original database?
Any help is much appreciated.
Thanks in advance
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Unable to add MBX02 into DAG
Dears,
i am installing and configuring Exchange 2013, and now i want to add a second Mailbox server into DAG but i got the following error:
errorA server-side database availability group administrative operation failed. Error The operation failed. CreateCluster errors may result from incorrectly configured static addresses. Error: An error occurred while attempting a cluster operation. Error: Cluster API '"AddClusterNode() (MaxPercentage=100) failed with 0x5b4. Error: This operation returned because the timeout period expired"' failed.. [Server: MBX02]
i walked through the prestaging process with no luck. link: https://technet.microsoft.com/en-us/library/ff367878.aspx
i have disabled the IPV6 and all offloading functionality with no luck.
Samer F. Mustafa Microsoft Technical Team Leader. sf_mustafa@hotmail.com
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Exchange 2007 CCR SP 1 to SP 3
I'm having some trouble wrapping my head around an issue I'm running into:
I have a 3 node exchange 2007 CCR environment running Version 8.1 (Build 240.6). Verified just now via command line. We're having a number of issues, and for obvious reasons (the dreaded 9667 being one of them).
I intend to install HeaderFilterAgent to fix this moving forward, and while I'm at it I want update to SP3, because I know it needs to happen. I've been reading the MS KB on this (https://technet.microsoft.com/en-us/library/Bb676320%28v=EXCHG.80%29.aspx) and I have a few questions:
1) While upgrading I see that I shutdown my clustered mailbox services and move them from my active node to my passive node after upgrading the active node.Doesn't the process of upgrading the active node disrupt the log file copy (get-storagegroupcopystatus)? If so how is my mailbox cluster going to move from my running passive node to my out of date node and come online after update without problems/corruption?
I just don't understand the situation/process. I'm trying, but it's illusive for me at the moment.
2) What does this mean " stop any services that have open handles to performance counters"?!
3) When I go to update my CAS/HT/UM, isn't that going to take my mailbox cluster offline (and possibly cause corruption if I don't shut down the cluster first)?
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Exchange 2010 and OA for Exchange 2013
If OA is enabled before Exchange 2013 in multiple sites, and use same url oa.contoso.com and redirect oa url using network switch to local site cas server, will it work?
Thanks
SMF
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DAG Modes, site, and server activation
From my understanding, With DAC mode activated, it makes it easier for complete datacenter switchovers to activate passive databases at another data center. With that mode set. My question is if a partial switchover can take place where some of the active databases remain active on primary data center and some of the other databases become active at the other data center? And manually control that behavior? For example, 8 servers at primary, with 2 copies of each database(active and passive), and a secondary site with 2 more copies on 8 servers, with one being lagged and the other passive. And lets say 2 servers go down at primary so that both copies(active and passive) are not available, can we fire up and make active 2 servers at secondary site to now become active database copy holder?
Thanks,
Neil
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Need help in Exchange Server 2010 Deployment and Configuration for Multi-site & Multi DAG environment.
Current setup is as mention below;
Exchange 2010 (both ent+std) installed on 5 different location and in active directory we have 3 sites A, B, C ( remaining 2 sites pending)
Site A is HO office and Site B will be DR of it and having separate DAG A (3 Mbx srv - 2 Mbx are in Site A and 1 Mbx in Site B but not installed pending)
Site B is DR site for all sites but as of now all 30 databases are active from it.
Site C is Prd site but as of now its passive node and site A and B are part of same DAG B (4 MBX srv - 2 mbx in site B and 2 mbx in site C).
Currently All DNS record are pointing to Site B in DNS like OWA etc.
CAS Array details of 3 sites:
Site A = sitea.xyz.com ( In site A windows NLB is used)
Site B = siteb.xyz.com ( In site A hardware load balancer is used)
Site C = sitec.xyz.com ( In site A hardware load balancer is used)
My Concerns are;
1. We have to move all mailbox database from Site B to Site C. what are think i have to ensure to get it done without any issues? Also ensure all CAS Exchange web services (like free\busy etc) work properly?
2. We have to use single url (mail.xyz.com) for OWA\active sync to access for each site (internally)?
3. We have Vasco integrated for external authentication so how we configure OWA url for that?
4. Also let me know the impact of all while performing above changes?
Shaikh Shahabuddin. (MSCA) This posting is provided AS IS with no warranties,and confers no rights.
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3 node dag - servers in 3 different datacenters
Hey guys,
Exchange 2013 design setup question. My customer has 3 datacenters and wants to setup one multi-role Exchange 2013 server in each. They have 100 mbps connection between them. For client access I was going to setup round robin DNS so clients can connect to any of the 3 servers. For the DAG, I was going to stretch is across all 3 servers and have a copy of each database on each server. Please let me know your thoughts on this design and if I am missing anything.
My confusion is with quorum and the FSW. I want to make sure I have this right. With a 3 node DAG, I need two votes for it to stay online. So if I lose 2 sites, will the DAG stay online as long as one server is online and the FSW is reachable?
Thank you for your help.
Kevin
-Kevin
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Exchange 2013 DAG
Hi guys,
I have one Exchnage DAG with two EXCH Server, this has been setup since a year and was working fine, last week I got my Backup failed, when going into it, I see that the passive copy is disconnected, I resume, Update, remove and re-add DB copy but in vain.
error timeout 15
A source-side operation failed. Error An error occurred while performing the seed operation. Error: A timeout occurred while communicating with server 'xxxx'. Error: "A connection could not be completed within 15 seconds.".
for my backup to succeed I remove the DBcopy.
Note: exchange on VM, I have also disable my AV & FW
thanks to advice
regards
jeff
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Dirty Shutdown - Repair or Reseed?
I have a 3 node Exchange DAG (2 servers in production, 1 in DR). Each mailbox database has 3 copies (2 in production, 1 in DR). Backup Exec takes a backup from the passive copy in production however this has failed due to dirty shutdown. We cannot take a backup from DR at the moment, so my question is can I just reseed the passive copy in production or should I attempt to repair the database?
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three-node DAG better?
Exchange 2013 CU4
in our config, our DAG consists of only two MB and CAS servers. in the event of a failure of one of the servers in a pair, we'd be running on one leg only.
i was thinking why not add a 3rd server for each MB and CAS so it'd be like a "RAID 5" config. if one server goes down, we're still good. or is there a rule against such configuration?
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Exchange 2013 - Backup DAG best practices
Hello everybody,
I have a customer that has Exchange 2013 in DAG (InterSite), and he want to backup the databases based on the best practices of MS.
Someone knows where can find an official document about backup Exchange 2013 in DAG?
Anyone can give me some recomendations about how backup Exchange 2013 in DAG?
The customer use ArcServe from CA.
Thanks.
Fed Y.
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Adding third Exchange server for DR
We currently have 2 Exchange 2013 servers with all 3 roles installed. We have four dags with 2 live databases on one server and two on the other. We also have a hardware network load balancer which our external dns and mx records point too. We now want to add a third Exchange 2013 server to the organisation for DR purposes. The server will be located in a different site and have a fast, low latency link. We want the third server to provide business continuity should we ever lose the 2 Exchange servers in our main office. We would like to automate this dr process where possible. As the nlb device is located in our primary office (which would probably be lost in the event of a disaster) we would have to manually change dns records to point to the third server.
- There is around 1tb of mailbox databases on the 2 servers. Should we setup the 3rd servers in our main office so the initial dag replication occurs over the lan rather than across the wan? if so what changes would we need to make to the 3rd server/exchange once its moved to the other site (obviously its ip settings as it will be moved to another subnet).
- We need to schedule or at least throttle the dag replication traffic to the 3rd server during working hours. what is the best way to do this?
- Any tips or advise on implementing the plan above.
Thanks in advance.
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