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Exchange 2007 SCC Database

April 21, 2013, 1:22 am
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Hi guys, need help

Windows 2003 Domain
Exchange 2007 SP3 rollup 1
Main Site - two- HUBCAS(NLB )
two Mailbox ( SCC )

DR
HUBCAS
Mailbox ( SCR Copy )

Main Site - 5 Databases( SCC- Single Copy Cluster )

i have one Database which has 100 Mailbox and currently this Database Files has been deleted ( SAN LUN was corrupted ). So now i have fresh New LUN( Same Drive Letter Assign. But from Cluster Console, This Database Base Resources has been deleted(initially it was just failed to mount and now Cluster Resources for this Database were deleted from Cluster administration Console. but Database can be seen from Exchange Management console ( dismounted due to unavailable Database files )
i have Backup ( windows backup for this database ) and want to know the correct patch to restore this database. can i do follow things.

1: i Disable Mailbox on database(since i can't delete DB), delete Database from Exchange management console , restore From the Backup and enable Mailbox Again( will it create any Issues for Mailbox Attributes )
2: Just Restore to Recovers storage Group ( since Cluster Resources already deleted fro Cluster Console, is it okay )
3: or What is the best way to restore my database and make it mount.


Thank you
Indunil

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Exchange CAS 2013 WNLB doesn't work

April 22, 2013, 8:41 am
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Hi,due to budget issue,a hardware load balance is not an option for my company. However when i configure WNLB it seems doesn;t work, Outlook client still connect directly to the CAS server instead of the NLB VIP.

Enviroment:

CAS01.contoso.com - 192.168.10.11

CAS02.contoso.com - 192.168.10.12

MBX01.contoso.com - 192.168.10.13

MBX02.contoso.com - 192.168.10.14

mail.contoso.com (CAS VIP) - 192.168.10.15

I already created DNS A record where both OWA, Autodiscover points to the CAS VIP, but whenever i create new user for testing, user will connect to CAS01 instead of mail.contoso.com.

What should I do to make user connect to the VIP?

Thanks.

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Backup on Exchange 2013

April 22, 2013, 1:04 pm
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Hey.

I need some help about backup on exchange 2013 with windows server 2012. Both products runs enterprise version.

I'm doing some tests on my network about exchange 2013 and everything was perfect until I get into backup issue.

I've done some research and some reading about it. Tried to use Windows Server Backup, I could do the backup normaly but when I try to recover, I just cant do it because the application checkbox is disable. 

What about the plugin that exchange 2013 should install? Aparently it didnt installed it. So, what should i do to backup my mailboxes?

I've read about DPM aswell, but some feedbacks says its not a good option. What you guys suggest or what should i do to get windows server backup working to restore these backups?

Thats what shows when i try to recover:

Thanks,

Kelson

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Data Center Network Maintenance

April 22, 2013, 6:16 am
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We have a 3-member Exchange 2010 SP2 DAG environment.  Our network team will be replacing the switch in the data center that these servers are all connected through.  What is the best practice for preventing any activation issues/split brain given the fact that none will be able to communicate with each other or the file share witness during the maintenance period?
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Details of making Exchange 2010 highly available

November 13, 2012, 7:23 am
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I recently upgraded from Exchange 2003 to 2010.  This is a single instance of Exchange running all roles on one VM with a Websense email filter on the front end.  I'm now looking at the options for making email access available in a disaster using a hosting facility about 30 miles away from my primary site.

I saw two basic options to accomplish this.  The first involves near real-time failover using hardware load balancers.  After checking the costs involved and the requirements of my DR plan I don't think I need to go this route.

That leaves setting up a database availability group and doing a manual failover.  This is where I need some guidance.  I know I need to run another instance of Exchange 2010 at the hosting facility and the OS needs to be the Enterprise version of 2008 and that the failover involves making DNS changes but I'm not clear on how that is done. I would greatly appreciate any detailed information you could provide on what steps I would need to do this.

Dan

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Exchange 2010 DAG network hiccups

April 23, 2013, 7:42 am
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I have a two sites, one Exchange server in each site, and 1 DAG that stretches between the sites. I'm having reports that the environment is suffering from frequent network hiccups that break the connection between the Exchange servers and also between the Exchange servers and the witness server.

I'm looking at blocking the auto activation for the DR site using this command "Set-MailboxServer –Identity MBX3 – DatabaseCopyAutoActivationPolicy Blocked" but I'm also wondering if I should implement DAC mode as well? I'm also concerned about the temporary disconnect with the witness and if that could cause further issues.

Vincent Sprague

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Exchange 2010 DR Test

April 24, 2013, 12:39 am
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I have two Hub/Cas and two Mailbox role server on Primary site and same on DR site, start DR switch-over and it was successful but after switch back outlook client in connecting with DR site CAS Array(outlookdr.domain.com). I checked the registry entries for cas array on primary and dr site exchange server and their exit same entries on both site (outlookdr.domain.com), how it changed automatically and how will it resolve.

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Help configuring HA/Site Resilience namespace for Active/Active DAG

April 26, 2013, 12:16 pm
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We would like to setup Exchange 2010 (SP2) HA and Site Resilience between our two sites using Active/Active DAGs, however I am confused on how to setup the CAS Arrays and namespaces for fail-over. As for the DAGs I understand I will need two and witness servers at each site for quorum.

Below is what I have envisioned but confused on how EAS/Outlook Anywhere, etc will work when users will be accessing it via mail.company.com. I am not sure how best to add SANs to our certificate? What about the Exchange URL's in both sites? Thanks for any help!

Primary Site:

EXCH01 (CAS/HUB/MBX)

EXCH02 (CAS/HUB/MBX)

EXCH03 (CAS/HUB/MBX)

EXCH04 (CAS/HUB/MBX)

CAS Array - outlook-pri.company.local

Loadbalancer w/ VIP

Secondary Site:

EXCH05 (CAS/HUB/MBX)

EXCH06 (CAS/HUB/MBX)

EXCH07 (CAS/HUB/MBX)

EXCH08 (CAS/HUB/MBX)

CAS Array - oulook-sec.company.local

Loadbalancer w/ VIP

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DAG failover alert

April 26, 2013, 10:05 pm
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I wanted to set the alert for DAG failover in exchange 2010.

Rameshbabu

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Database replication

April 28, 2013, 12:32 am
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I plan to deploy Exchange 2013 and wanted to ask your advice

I have one AD site with about 300 users but physically it’s divided between two buildings with 10Mbit connection between them. Most of the users work in the main building.

I thought to put two exchange servers in the main building one of them having an active DB and the second passive. Now the question is what to do with the second building. I would like to use it as a DR site in case the main building will go down for some reason. Do you think that putting there a passive database will be enough? Will the 10M link be enough? And if this is a good idea how can I make sure that the server in the second building will become active only if both servers in the main building will be down?

Thanks for your help

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Create a NLB cluster

April 28, 2013, 5:25 am
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Hi!

We have two Exchange 2010 Servers and they have CAS server roles installed

We would like to create a casarray Network Load Balancing cluster using windows server Network Load Balancing Manager.

Both servers are provided with two physical NIC's
Server A:
- NIC #1 is given a static IP (i.e 192.168.1.13) 
- NIC #2 is given a static IP (i.e 192.168.1.15)

Server B:
- NIC #1 is given a static IP (i.e 192.168.1.14) 
- NIC #2 is given a static IP (i.e 192.168.1.16)

Kindly provide steps for create casarray with requirements

With warm regards, Kiran Sawant

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Need some help with Exchange OST Database!!!!!!!!

April 29, 2013, 11:58 am
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Hi,

Any expert pal who have good knowledge on Microsoft Exchange Server?

Please I need a quick favor………! I need help ASAP..!

I’ve been facing problem with my MS-Exchange Offline (keros.OST) file I am unable to use my offline database, which making me upset all the day, I have some vital attached data with those emails and now that Offline file is useless for me. :(

Please help me to get back my official most-important data. I can use Outlook 2007 as I have installed on my Netbook but even unable to load Offline files. Ifailed to load Keros.OST last time, as i first thought i will surely be able to use after loading Keros.OST into Outlook 2007.

I am dreadfully looking for a solution, any trick, any idea, any coding or any tool which can help me to get my Offline file working.

I'd be thankful whole ma life.

Velma Sidus

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Can I mix Exchange versions for high availability/performance setup

April 29, 2013, 2:31 pm
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Hi, 

I have a client that currently has 2 sites which are connected via a dedicated 100meg line.  They want to create a high performance/high availability setup so users at both sites have quick access to their data, and they have a fall-back if one server quits. 

They have an exchange 2007 server, and have bought a licence for 2013 which they want to deploy at the other site. My question is, what are the requriements for this scenario?

1 -  Do both server have to be the same version? Or will service packs and rollups make the two server compatible

2 - What operating systems must be running on the servers? Can they be standard versions, or do we need to upgrae to enterprise or data center versions to make this work. 

3 - are there any other considerations for this scenario?

Many thanks in advance.


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Exchange 2013 DAG not Active Passive

May 1, 2013, 11:19 am
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I have an Exchange Server 2013 box named EXCHANGE1 running on Windows Server 2012. The server has 4 mailbox databses named DB1, DB2, DB3, and DB4. I recently added another server named EXCHANGE2 running on another server running Windows Server 2012. I created a new DAG and added EXCHANGE1 and EXCHANGE2 as members. I then created database copies of DB1, DB2, DB3, and DB4 from EXCHANGE1 on EXCHANGE2. 

However now my users are getting prompted for login and they appear to be connecting to EXCHANGE2 frequently? How can I make sure EXCHANGE2 is passive and users are all on EXCHANGE1? 

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EXCHANGE 2010 - HA - DAG with DAC - client disconnect when passive node reboot

May 1, 2013, 11:21 pm
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Hello,

My infrastructure:

3 EXCH 10 server in a DAG (with DAC mode). 2 on on site, and one on a different site for site recovery (2 AD Directory site).

all servers are MBS-CAS-HUB. The third server (in the recover site) has no active mailbox database.

When I reboot this server, clients are disconnected.

Any Idea?

Thanks for all

LC

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How many DAG networks has support in Exchange 2013

May 2, 2013, 12:38 am
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How many DAG networks has support in Exchange 2013

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Issue fail over Alternate FSW for DAG in exchange 2010

May 6, 2013, 12:21 am
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Hi,

I have 4 node (3 Prod +1 DR) DAG cluster and DAC mode is enabled. I have managed to failover the DB's and cluster resources to DR except FSW.

I have an alternate FSW configured on my DR hub server. The sharing/security permission on the alternate FSW folder is correctly configured. 

So, i run the restore-databaseavailabilitygroup command to evict the stopped nodes in DAG and to failover FSW

This has successfully run to evict all the prod node.  I only get an error at the end as below logs. So i am not able to failover the FSW to alternate FSW. I checked the "exchange trusted subsystem" was added into local admin of the hub server.

Some part of the logs as below which shows the error when run the restore command. Any advice?

[2013-05-03T18:07:12] Running the eviction operation by issuing an RPC to the replay service on 'xxxxx'...
[2013-05-03T18:07:22] Updated Progress 'Creating alternate witness (witness server = xxxxx; witness directory = 'C:\DAG2').' 63%.
[2013-05-03T18:07:22] Working
[2013-05-03T18:07:22] Checking that the file share witness server (xxxxx) isn't one of the servers in the DAG.
[2013-05-03T18:07:22] Checking if the FSW server can be queried with WMI.
[2013-05-03T18:07:22] The boot time of the FSW was '1/20/2013 4:09:20 AM' (MaxValue if the call failed).
[2013-05-03T18:07:22] Creating the file share of the FSW...
[2013-05-03T18:07:22] There is 1 server in the cluster, and StoppedMailboxServers is not empty. That requires a file share witness!
[2013-05-03T18:07:22] Updated Progress 'Using file share witness share '\\xxxxxx\xxxx' for an even number of members in the database availability group.' 65%.
[2013-05-03T18:07:22] Working
[2013-05-03T18:07:22] CreateFileShareWitnessQuorum: There is already a FSW, but the current share path (\\xxxxxx\xxxxx) is not what's desired (\\xxxx\xxxx). Will try to fix it.
[2013-05-03T18:07:22] SetFswSharePath() caught an AmClusterApiException with errorcode=-2147467259 and NativeErrorCode=1385. ex = System.ComponentModel.Win32Exception: Logon failure: the user has not been granted the requested logon type at this computer
[2013-05-03T18:07:22] The operation wasn't successful because an error was encountered. You may find more details in log file "C:\ExchangeSetupLogs\DagTasks\dagtask_2013-05-03_18-05-56.512_restore-databaseavailabilitygroup.log".
[2013-05-03T18:07:22] WriteError! Exception = Microsoft.Exchange.Management.Tasks.DagTaskProblemChangingQuorumException: There was a problem changing the quorum model for database availability group DAG2. Error: An Active Manager operation failed. Error: An error occurred while attempting a cluster operation. Error: Cluster API '"ClusterResourceControl(controlcode=CLUSCTL_RESOURCE_SET_PRIVATE_PROPERTIES) failed with 0x569. Error: Logon failure: the user has not been granted the requested logon type at this computer"' failed..
restore-databaseavailabilitygroup explicitly called CloseTempLogFile().

Sam

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Exchange 2013 HA Design

May 6, 2013, 10:27 am
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I know the new architectural changes and just curious to the design part of CAS HA. Since new CAS works on layer 4 , there are options to use a Layer 4 Load Balancer as well DNS round robin can be use (it doesn't use session affinity like 2010)

So correct me if I am wrong here- If I am using a Load Balancer then for the external request to OWA I can redirect the IP from FW to Load Balance VIP and the load balancer will do the round robin on each CAS Server?

Where Technology Meets Talent

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Exchange 2010: Why does store.exe version matter?

May 6, 2013, 11:46 am
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I have a customer who has three mailbox servers. Two are in the same subnet and have the databases balanced between them. The third server is DR and sits offsite. I'm not sure about the DR server, but the production servers are both VMware guests.

We have a situation, in which one of the nodes randomly drops out of the DAG, and the mailboxes fail to the other production server. When the node drops, we see event 1135 on the other two servers:

Cluster node 'node2' was removed from the active failover cluster membership. The Cluster service on this node may have stopped. This could also be due to the node having lost communication with other active nodes in the failover cluster. Run the Validate a Configuration wizard to check your network configuration. If the condition persists, check for hardware or software errors related to the network adapters on this node. Also check for failures in any other network components to which the node is connected such as hubs, switches, or bridges.

I ran ExBPA and found that the store.exe version is different between the production servers and the DR server (production servers are the same and DR is different). I'd like to know things really.

  1. Could this discrepancy cause the failover issue?
  2. In what way does the discrepancy between prod and DR impact the DAG?

Thanks.

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Exchange 2007 CCR Copy Queue Length Issue

May 7, 2013, 7:40 pm
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Hi, I'll be amazed if anyone answers this, but here it goes! Thanks.

A few weeks ago we started seeing a problem on one of our Exchange 2007 2-node CCR clusters where the CopyQueueLength for one SG will increase, and logs stop copying, even though SummaryCopyStatus remains "Healthy". We reboot the passive cluster node (restart the Replication service) and the SG copy succeeds on all SG's for a day or so, when the the problem reoccurs on another SG.

Here are some facts:

The cluster has 12 SG's. The problem happens on only one SG at a time, and it's a different SG each time.

Perfmon shows a CopyQueueLength of "1" for the problem SG, even though Get-StorageGroupCopyStatus shows a large queue.

An attempt to Suspend all SG log copy fails on the problem SG, but all non-problem SG's are suspended anyway. Upon reboot the problem SG log copy is also suspended, and they all resume copy fine.

Get-StorageGroup -server ServerName | Suspend-StorageGroupLogCopy

We increased diagnostic logging to "Expert" for MSExchangeRepl, but it shows no errors on either node at the time of the last inspected log time.

The problem happens regardless of which node the cluster is active on.

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