Dear Expert,
I have some question about HA and replication.
Thank you
Hi,
Our environment: 2 exchange servers each with CAS/HUB/MBX roles
We just setup a casarray and set it on our existing mailboxes.
Both Servers are able to send and receive massages.
Our Firewall delivers Mails to both exchange servers.
We setup a new Maiboxdatabase on EX2 and setup a copy of it on the other EX1 server. The DAG is healthy.
No problems occured until now. So I just moved my own Mailbox into the healthy DAG mailbox.
After a few minutes i recognized, that not all mails are delivered to my outlook.
I found out that all mails which are beeing delivered to the EX1 with the copy of DAG mailbox stuck in delivery que.
Errors on EX1:
Mails in que have: Last Error: 250 2.0.0 OK
DAG_MB01 Que: The DAG mailbox que canceled thith this error: 432-4.3.2 STOREDRV; Mailbox Server is offline432 4.3.2 STOREDRV.Deliver.Exception:ConnectionFailedTransientException.Mapi.ExceptiopnNetworkError; Failed to processmessage due to a transient exception
If I make the copy of DAG_MB01 on EX1 aktive, all Mails in the que will be delivered.
This event only occures only on EX1.
All e-Mails beeing delivered to EX2 won`t stuck in que. Equal where the DB is aktive.
It looks like EX1 tries to deliver Mails in the offline copy and
Does anyone have any ideas why this is happening?
Thanks in advance!
BR,
Jan
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?
HELP! HELP! I tried more than a few things and can't seem to resolve my problem. I have 2 servers win server 2003 ent R2 64bit on Exchange server 2007 CCR. The problems that i have encountered:
- Logs not truncating, even after full backups run
- Get error messages when trying to failover from active to passive node
- Some of my storage groups where stuck on initializing, but seems to have corrected after suspending and dismounting DB, then remounting and resuming copy
- These 2 servers are pointing to their respective LUNS for Logs and Databases on a EMC Clarriion CX3-20 connecting via fiber through Qlogic SANbox5200.
- I am at a loss and think will need to break cluster and remove passive node then run full backup to see if it flushes logs. Any ideas or suggestions on what i can do? Your help greatly appreciated.
Hi,
I know that alternate fileshare witness is must while configuring the Exchange 2010 DAG with DR setup however i want to check alternate file share witness requirement for DAG with 2 Nodes in same Datacenter.
Ex: If i have only 2 Mailbox Servers configured in DAG and both Mailbox Servers are in same Datacenter then primary file share witness is required to have the configuration of Node and File Share Witness Majority.
1) At the same situation is it strongly recommended to have Alternate File Share Witness ? If not configured is this considered as risk ?
2) Consider that Alternate File Share witness is not configured and Primary File Share Witness is down, at that situation will i be able to Mount/Dismount Database ? Will i be able to move Database from one Node to other Node ?
Pls help to get the above details, not able to find clear answer.
Regards:Mahesh
Hello
I got a problem when creating myDAG, Or putting my servers as DAG Members.
Got 2012 Server Standard and Exchange 2013 on the servers
Witnessserver:2012 Server
EX01: 2012 Standard With Exchange 2013
EX02:2012 Standard with Exchange 2013
Error Message:
error
A server-side database availability group administrative operation failed. Error The operation failed. CreateCluster errors may result from incorrectly configured static addresses. Error: Computer account 'DAG01' couldn't be validated by user 'NT AUTHORITY\SYSTEM'.
Error: An attempt to use the specified cluster name failed because an enabled computer object with the given name already exists in the domain. [Server: EX01.contoso.local]
error
The Microsoft Exchange Replication service does not appear to be running on "ex02". Make sure that the server is operating, and that the services can be queried remotely.
What can be wrong? I choose when creating the DAG DHCP IP Address, it's maybe that setting that I need to specify as Static?
The IP-Address that I put in when Creating the DAG is it the network? or the Witnessservers IP?
Thanks Alot!
Hi,
While discussing some of the points with folks we just got in to a topic of Exchange DB recovery.
If i am running a Exchange 2007/2010 and if my Disk drive where DB is resided is crashed completely and do not have any backup. Now i am left with only transaction logs and not even have edb file. In this case will i be able to recover my old data using Transaction Log Files ?
I understand that new Blank DB can be created in new Drive if drive is crashed but my worry is for recovering the old mails.
I hope i wont be able to reply my old logs in newly created/black DB since sequence of log file is different.
Kindly share your experience/ thought on above case.
Note: Pls assume that no high availability or backup is in place, this we are thinking as last step of recovery.
Regards:Mahesh
My exchange DAG with 2 nodes. noticing this weird IP address 169.254.1.97 (MS failover Cluster Adapter) on both nodes when I run IPCONFIG/all. Time to time I see this address in the msg headers too. I can ping this address from either nodes but cannot ping from the lan. I am not sure where is this coming from ….. Any !deaz.
thanks
I have 2 intranet zones, one is an Active Directory Zone the other is not.
co1.myco.org <Active Directory Integrated
myco.org < NOT Active Directory Integrated
If I place my CAS array FQDN in myco.org and my CAS servers in co1.myco.org, will my CAS array function correctly or does my CAS Array FQDN have to be in an Active Directory Integrated zone?
Hello,
We’re running Exchange 2010 DAG across 2 sites in the following scenarios.
Site-1:
OWA and RPCClientAccessServer name : site1.abc.com
Site-1 DB : Site-1 users’ mailbox DB (Active)
Site-2 DB : Site-2 users’ mailbox DB (Passive)
Site-2:
OWA and RPCClientAccessServer name : site2.abc.com
Site-1 DB : Site-1 users’ mailbox DB (Passive)
Site-2 DB : Site-2 users’ mailbox DB (Active)
Users in Site 2 need to access their mailbox (Site-2 DB) and some shared mailboxes (Site-1 DB) from the single Outlook profile. We assign necessary “FullAccess” permission for users on the shared mailboxes so that users can use their own single user account to access both personal mailbox and shared mailbox(es).
Site 2 users Outlook configuration:
Outlook 2010 profile configuration : Single account (with additional mailboxes under “Advanced” tab)
DB Server : site2.abc.com
HTTP proxy server : site2.abc.com
The above environment was working well until we upgrade Exchange 2010 SP2 Rollup 6. I understand that the DAG setting “AllowCrossSiteRpcClientAccess” takes effect since SP2 rollup 3. I’ve configured Cross-site access to “True” but users in Site 2 still cannot access shared mailboxes active/hosted in Site1 using the above Outlook 2010 profile configuration.
My question is wither it is possible for Site-2 users to use CAS server site2.abc.com to access shared mailboxes hosted/active in “Site-1 DB” in a single account Outlook profile. Thank you.
Zaw Phyoe
Hello, I have subsequent issue:
Though all Exchange 2010 forums are closed I my question in this Exchange 2013 forum - sorry.
I have two active directory sites (Site A, Site B), in both site I have a CAS, HT (on same server) and MBX (on separate server). All servers are EX2010 SP3 on Windows Server 2008 R2. The two MBX servers are DAG members and each CAS is a member of a "one
node CAS Array" (casarrayA, casarrayB). For testing I have only one Mailboxdatabase (DB1) where the rccclientaccessserver value is set to casarrayA.
When I check the Outlook connection state (for a user who is in DB1 and DB1 is active in site A) I can see that Outlook connects to casarrayA (according to ccclientaccessserver value). When I perform a DB failover to the MBX server in site B everything works
fine for the client. But when I check the Outlook connection state I see that it connects to casarrayB (though the ccclientaccessserver value is set to casarrayA - I doublechecked it). Doing again a failover, the Outlooks connects back to the casaarray in
the site, where the DB is active.
I have in mind that Outlook ALLWAYS connects to the the CAS or casaraay specified in ccclientaccessserver value. Is the above mentioned behaviour by design? How can I control (force) that Outlook ALWAYS connects the the CAS set through the rccclientaccessserver
value?
Many thanks in advance
Lars
Dear Expert,
I have some storage model "Dell Storage PowerVault MD3600F" for SAN to collect database and log. It can work together smoothly with Exchange Server 2013, or not? Do you have the reference link or paper.
Thank you
I want to reseed an exchange database as the Content index state is FailedAndSuspended, as searches in OWA are not available.
So I run: Update-MailboxDatabaseCopy "Mailbox Database 1434301284" -CatalogOnly
But then I get the error: This task is supported only for databases that have more than one copy.
How can I fix this issue?
Thanks,
Kris
Scenario:
Small company, 2 geographic sites connected by 20Gbps Fiber link, single AD Site, Exchange 2003 (500 mailboxes one site, 300 the other). Virtual Infrastructure exists at both geographic sites.
Mailbox users are site-specific and in current Exchange 2003 solution, have mailbox servers located at each site respectively.
Requirements:
To upgrade to Exchange 2010 as first phase upgrade.
To maintain mailbox site affinity for users located at each site, so that power-outages only affect mailbox users at that site.
Minimise costs and server count where possible, whilst providing higher availability for maintenance work to be peformed during normal working hours for the 2010 solution.
No requirement for DR copies of mailboxes between the sites.
Constraints:
Power outages at each physical location occur multiple times per year, quite frequently for more than the run-time of the UPS kit in place, so there is the real potential for ALL kit to go down at either of the sites, as has done to date.
Question:
What is the most appropriate DAG design?
Initial Thoughts:
Geo-site A: 2 x Mailbox nodes + 1 x CAS/HT node (FSW for DAGA)
Geo-site B: 2 x Mailbox nodes + 1 x CAS/HT node (FSW for DAGB)
A total of 6 servers required, which may seem overkill. However, CAS/HT nodes can be load-balanced using NLB between well-connected geo-sites A and B via 20Gbps resilient Fiber (Hard to justify cost of VLB or HLB for such a small number of users).
This provides local HA against single server failure for both DAGs at either site. If one site goes off-line due to power-outage, entire DAG and NLB node at remaining site continues to service clients.
Is there a simpler model that would work well whilst providing high availability for each geo-site, bearing in mind the possibility of complete power outage at each site?
Thanks in advance for ideas / thoughts.
MSEBlogger (Technet)
We have multiple office locations each with a Transport/Mailbox server and a Transport/CAS server installed. Currently if the Transport/CAS server in an office goes down, then they are unable to send emails. How can we have the mailbox server attempt to send via a different Transport/CAS server in another office. All offices are on the same domain and all connected via VPN tunnels. They do however have different IP subnets.
I've two exchange server, one in each of location, I'd like to have email receive never failed that if one site is down, the other will get all those email and pass it back to the down server when it's up and running again. each of the server will hold different users' account.
I don't mind if users cannot access to his/her mailbox if the home server is down.
But if there's solution that can solve this issue will be good.
Your help would greatly be appreciated. Thank you.
Hello
I've been asked to designing the upgrade from 2007 to 2013. total of 4 servers (2 per site, with 1 server in each site having site failure capabilities for other site)
Paris: 2 members of a 3 member dag where 3rd member is in Lyon (Paris has 2000users)
Lyon: 2 members of a 3 member dag where 3rd member is in Paris (Lyon has 2000users)
Thoughts for it:
Local services is necessary when WAN link fails or else 2000 users cant access email if databases dismounting.
I need to place the FSW somewhere but not sure where.
Can someone help me understand if this will work once I know where to put the FSW
http://technet.microsoft.com/en-us/library/dd979799(v=exchg.150).aspx but it talks about multiple DAG's but that's a LOT more servers :( and extra complications which may not be needed.
thank you
Hi Fellows,
I was wondering if an Exchange backup can be restored on different DAG with same Exchange Organization?
Is there any technical limitation in it?
Networker is configured to take backup of DAG1. Now we have created another DAG (i.e. DAG2) and want to remove DAG1 but before removing it we want to know (in case if required) if the older backups taken can be restored to recovery database in DAG2.
Thanks.
J.A