Mirror Setup
Jul 11, 2007
Hello,
I'm trying to setup database mirroring between 3 servers and the details are as follows:
1. All 3 machines reside in the same domain.
2. Server1 consists of SQL 2005 Ent Edition without SSAS, Server 2 consists of SQL 2005 Ent Ed without SSAS & SSRS, Server 3 consists of SQL 2005 Express Ed.
3. All the 3 machines are having their individual service domain accounts.
4. Server 1 consists of 5 databases which needs to be mirrored to Server 2. I took full backups and tlog backups and restored the full backups in NO Recovery mode on Server 2 and then applied the tlog backups to sync them with Server 1.
5. I created the logins on Server 1 (Server 2 & 3), Server 2 (Server 1 & 3) and Server 3 (Server 1 & 2) and gave "sa" permissions respectively.
6. I kept the first database on Server 1 to full recovery mode, created an endpoint with the default port and granted connection to Server 2 & 3 logins.
7. I created an endpoint on Server 2 with the default port number and granted connection to Server 1 & 3 logins.
8. I created an endpoint on Server 3 with the default port number and granted connection to Server 1 & 2 logins.
9. On Server 2 I'm executing this statement
ALTER DATABASE <dbname>
SET PARTNER = 'TCP://<Server Network Address of Server 1>:<Port No>'
10. On Server 1 I'm executing this statement
ALTER DATABASE <dbname>
SET PARTNER = 'TCP://<Server Network Address of Server 2>:<Port No>'
ALTER DATABASE <dbname>
SET WITNESS = 'TCP://<Server Network Address of Server 3>:<Port No>'
On Step 9 & 10, I'm getting an error message "Msg 1416, Severity 16, State 2 Database <dbname> is not configured for mirroring" in the query window but when I see the error logs individually on Server 1 & 2 I'm seeing "Error: 1443, Severity: 16, State: 2. Database mirroring has been terminated for database 'dbname'. This is an informational message only. No user action is required."
I would appreciate if any one can look into the problem I'm facing. I've googled and could not come up with a solution.
Thanks
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Nov 6, 2006
We are having problems getting the two databases to connect with each other for mirroring. We have the following setup:
- Doing Principal and Mirror (no witness)
- Using Management Studio
- Both servers are SQL Server 2005 SP1 Standard Edition
- Same domain account, same user id
- We can telnet to both and connect to both from Stuio.
We were originally getting error 1418, but now we're getting:
"Neither the partner nor the witness server instance for database "tmsng" is available. Reissue the command when at least one of the instances becomes available. (Microsoft SQL Server, Error: 1431)"
This is what the log file looks like:
------------------------------
2006-11-06 13:01:59.62 spid24s Error: 1443, Severity: 16, State: 2.
2006-11-06 13:01:59.62 spid24s Database mirroring has been terminated for database 'tmsng'. This is an informational message only. No user action is required.
2006-11-06 13:03:32.98 spid17s Error: 1474, Severity: 16, State: 1.
2006-11-06 13:03:32.98 spid17s Database mirroring connection error 4 'An error occurred while receiving data: '64(The specified network name is no longer available.)'.' for 'TCP://MWSM3D02:5022'.
2006-11-06 13:53:18.14 spid73 The Database Mirroring protocol transport has stopped listening for connections.
2006-11-06 13:53:20.15 spid73 Server is listening on [ 'any' <ipv4> 5022].
2006-11-06 13:53:20.15 spid73 The Database Mirroring protocol transport is now listening for connections.
2006-11-06 13:53:29.79 spid73 The Database Mirroring protocol transport has stopped listening for connections.
2006-11-06 13:53:31.79 spid73 Server is listening on [ 'any' <ipv4> 5022].
2006-11-06 13:53:31.79 spid73 The Database Mirroring protocol transport is now listening for connections.
2006-11-06 14:21:43.48 spid24s Error: 9642, Severity: 16, State: 3.
2006-11-06 14:21:43.48 spid24s An error occurred in a Service Broker/Database Mirroring transport connection endpoint, Error: 8474, State: 11. (Near endpoint role: Target, far endpoint address: '')
2006-11-06 14:47:38.79 spid22s Error: 1443, Severity: 16, State: 2.
2006-11-06 14:47:38.79 spid22s Database mirroring has been terminated for database 'tmsng'. This is an informational message only. No user action is required.
2006-11-06 14:49:23.06 spid22s Error: 1474, Severity: 16, State: 1.
2006-11-06 14:49:23.06 spid22s Database mirroring connection error 4 'An error occurred while receiving data: '64(The specified network name is no longer available.)'.' for 'TCP://MWSM3D02:5022'.
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Mar 7, 2007
I'm trying to setup a SQL 2005 SP2 Mirror in between two mashines with no witness server.
I have successfully established the following:
1. Backup The Database on Principal Server: OK!
2. Copy the backup over to the mirror server: OK!
3. Restore the Database on Mirror Server: OK!
4. Establish Endpoint on Principal Server: Encyrption Disabled OK! TCP - PORT 5022
4.1 Test Script: Checks fine (values match)
SELECT e.name, e.protocol_desc, e.type_desc, e.role_desc, e.state_desc,
t.port, e.is_encryption_enabled, e.encryption_algorithm_desc,
e.connection_auth_desc
FROM sys.database_mirroring_endpoints e JOIN sys.tcp_endpoints t
ON e.endpoint_id = t.endpoint_id
5. Establish Endpoint on Mirror Server: Encyrption Disabled OK! TCP - PORT 5022
5.1 Test Script: Checks fine (values match) (same script as above)
6. Specify Principal server from Mirror server: OK! Connecting with IP
7. Specify Mirror server from Principal server: OK! Connecting with IP
8. View Mirror Information:
8.1 Test Script: Shows everything in NULL
SELECT mirroring_state_desc, mirroring_partner_name, mirroring_witness_name, mirroring_witness_state_desc, mirroring_role_desc, mirroring_safety_level_desc
FROM sys.database_mirroring
Mirror endpoints are still in red even though they initialized correctly.
Mirror monitor shows no mirrors are up.
SQL Logs shows: The Database Mirroring protocal transport is now listening for connections.
Any help would be appreciated.
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Aug 10, 2015
I have checked my Production databases, both are went to Disconnected state, both are unable to connect to the application, i checked all the services and its working fine. and restarted the end points on Principal and Mirror, still issue not solved, after restart the witness server End point both the databases are working fine.
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Jan 31, 2008
After adding the Witness Server to the Mirror session, the Witness Connection state between the Mirror and Witness Connection is Disconnected and the state between Principal and Witness Connection is Connected.
The procedures defined in Books Online was used to setup Database Mirroring...when the Witness server was added to the Mirror session, only the alter database T-SQL statement was executed on the Principal server.
ALTER DATABASE <db_name> SET WITNESS = 'TCP://<servername>:<port>'
After executing the above statement, a few seconds later the state between Principal and Witness Connection changed to Connected and the state between Mirror and Witness Connection remains Disconnected.
The Mirror session is not using Certificates, every server is on the same domain, using the same domain login account, and all servers have SP2 installed running Enterprise Edition.
Any idea's why the state between Mirror and Witness Connection remains Disconnected?
Thanks,
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Dec 27, 2006
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Nov 17, 2005
This forum is intended for users who are new to SQL Server, and have basic usage questions. If you have setup or installation issues or questions, you should check out the Setup forum.
Thanks
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Apr 24, 2015
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Mar 15, 2006
We have a new server that is 64-bit and I have been approached about using the old 32-bit SQL Server (after a complete format and reinstall) for a mirrored server.
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Dec 7, 2007
I have two sql 2005 servers. I want to do mirroring. My question is does mirroring supports store procedures, ssis packages, user log in ids also? I know mirroring supports database level. In this case, mirroring should supports sp and indexes also. Am I right?
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Jun 21, 2007
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Dec 19, 2006
Hi all,
I feel happy to post my first thread at dbforums.com, and I think it's the community of DB professionals.
my question is:
I have two servers in my organization, one of them is running an SQL server database. Is there any way to make the second server a mirror of the first one and to make it runs automatically as the main server when the first server is down?
Thanks for replying soon.
Haytham
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Aug 6, 2007
Hi folks,
I am creating an external database for a legacy application and one of the requirements is that every table has to be declared twice in the database:
TABLE_READ and TABLE_WRITE.
Now the idea is that as soon as a change is made to TABLE_WRITE, these
changes should be reflected in TABLE_READ.
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- some kind of table mirroring within a single database?
- is there a good solution using tsql/stored procedures?
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Feb 20, 2007
Hello All!
I have a very simple question.
Im studying for 40-431 and just finished reading about Log Shipping.
It says in the book that when using Log Shipping you cannot run any other log backups because that would affect the LSNs. Can one do log backups with mirroring - principle and mirror?
Because mirroring uses log to keep the mirror up-to-date and synchs on LSN.
Thank you
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Jun 21, 2007
Hi,
I've got a problem with the DB mirroring in SQL 2005.
Configuration:
Server 1 Name: ABC001 NIC#1: IP 10.1.1.1 no DNS Server, no Gateway NIC#2: IP 192.1.1.11
Server 2 Name: ABC002 NIC#1: IP 10.1.1.2 no DNS Server, no Gateway NIC#2: IP 192.1.1.12
NIC#1 is an cross-over between the 2 server, NIC#2 is related to the local network.
I cannot setup the mirror with the built-in tool nor by hand.
With the tool I receive the message:
"
One or more of the server network addresses lacks a fully qualified domain name (FQDN). Specify the FQDN for each server, and click Start Mirroring again.
The syntax for a fully-qualified TCP address is:
TCP://<computer_name>.<domain_segment>[.<domain_segment>]:<port>
"
By hand with (Endpoints are ready, added by the tool):
-- Specify the partner from the principal server
ALTER DATABASE [MyDB] SET PARTNER =
N'TCP://ABC002:5022';
also
ALTER DATABASE [MyDB] SET PARTNER =
N'TCP://10.1.1.1:5022';
makes a problem like "other server cannot be reached"
I can ping the other server and use windows sharing. I have create an host entry for ABC002 to use the NIC#1 alltime.
Has anyone an idea how to resolve this?
Thanks!
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Feb 21, 2007
Hi,
Trying to build an replication and subscription beteween db in SQL 2000. The db holds our business system (Dynamics NAV, earlier Navision) and several of the tables include $, spaces and even :
We can take some of this away when creating a new db or make scripts for some actions but I wonder if the mirroring in 2005 could handle this?
Thanks,
Mikael
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Jan 26, 2007
Im pretty new to DBA world
We have a SQL2005 Standard setup with mirror and witness
I create a Database in the Principle, create a SQLLogon account and give it permission to the database. All works.
I then fail the databse over to SQL2 and the database is there, it has the SQLAccount I create at the database level, but a logon does not work. I notice there is not login account at the database level and If I attempt to create one, I am told there is one already. I try to assign permission to that account for the database and it again replys that there is already on.
Is this refered to as an orphaned logon?
I was a post on Moving logins from on server to another, is that what I must do?
THank you
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May 30, 2007
I have a question and excuse me if I look dumb ... but I can't MIRROR MASTER or other dBs. If I lose the server then (primary) ... will the db still be open? do I not require some of these non-mirrorable database to run?
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Mar 26, 2007
Hope this is the right thread,
When you backup with Mirror?
Is that concurrent to those devices and if so, what happens if one fails does the entire backup fail?
Cheers,
Casey
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May 8, 2006
When witness and mirror were down, mirroring was removed at primary. Now when I try to re-establish mirroring I get the following error
Msg 1456, Level 16, State 3, Line 1
The ALTER DATABASE command could not be sent to the remote server instance 'TCP://witness:5022'. The database mirroring configuration was not changed. Verify that the server is connected, and try again.
On the witness server the following sql
select * from sys.database_mirroring_witnesses
returns 1 row with the previous mirroring information.
How do I remove old information from witness server? Thanks.
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Oct 24, 2007
I've setup sql mirroring which works fine. my problem is that when the mirror takes over from the partner that means the IP address of the SQL server has changed which is coded into the web.config file.
How can I get my web.conig file to recognise 2 sql servers that are being mirrored so it can see whichever one is the principal.
Currently, when the mirror takes over my web application does not work as the IP address of the sql server has changed.
Does anyone know the fix for this?
thnaks
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Jan 24, 2006
I have a user which has the currect rights to do what he needs but others with the same permissions (from what I can tell) can not do somethings. It looks like I have 2 options
a.) find a way to mirror the working one to 30 others ids
or
b.) find some tool that will do a detailed comparision of the two ids
Any suggestions/tools(free)/scripts that would work?
Thanks
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Jun 13, 2007
Hi i have tried a search on this topic but didn't find much.
I have my fiest sql db live on my we server and all works fine, more luck than skill i think.
But now i wory about backing up my data i have tried various tools backing up the db every 5 minutes and then sending it too another server via ftp this tool works fine but when we have a few people on and the db is accessed frequently it can't back it up i assume this is to do with the backup tool needing an exclusive lock on it.
What is the difference between Replication and data mirror both of these seem to be talked about alot and is there a simple guide somewhere on how to set these up.
Or if i am coming at this from totally the wrong angle then please let me know
Thanxs
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Aug 24, 2006
All,
I have created an asynchronous database mirror and a snapshot of the mirrored database similar to what is described in the following article:
http://msdn2.microsoft.com/en-US/library/ms175511.aspx
The article says that once you create the mirror that "At this point, new client connections can be programmatically directed to the latest snapshot."
My question is, how can you programmatically direct connections to the latest snapshot?
Does anyone have a suggestion, or know what the article is getting at? We will use SQL Server Reporting services to query off of the database snapshot.
Thank you,
Racer-D
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Aug 24, 2006
Does any one have any recommendations concerning replication when it comes to hardware failure.
I have many sites with one SQL Server in each - i'm contemplating the installation of hot spare servers in some locations - should a server die - I can put the hot spare into production fairly quickly, mainly because the DATA would Already be on the server - in other words a restore would not be needed thus lessening the time to get the spare server running etc etc.
I'm exploring a third party tool called "Double-take" - byte level replication
But then i read about SQL2005 (which we have not yet implemeted) that may have a built in SQL mirror possibility - (i might need primary server - a Secondary - and a "witness" server which allows automatic failover)
Any one's advice would be graetly appreciated.
Gibson767
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Dec 5, 2007
Hi ALL,
I have a problem with merge replication and mirror. I have
Principal server: B is subscriber of A.
Mirror server: D is subscriber of C.
F is distributor and also witness.
D is mirror of B.
C is mirror of A.
I also set parameter PublisherFailoverPartner for Merge agent and log reader agent.
1. Merge replication between A and B is ok
2. Mirror between D and B is ok
Mirror between C and A is ok
3. When i failove, merge replication between D and C does not work. The message is shown
The merge process could not connect to the Publisher 'SGIMIS-2:Mis'. Check to ensure that the server is running. (Source: MSSQL_REPL, Error number: MSSQL_REPL-2147199368)
Get help: http://help/MSSQL_REPL-2147199368
Another merge agent for the subscription(s) is running or the server is working on a previous request by the same agent. (Source: MSSQLServer, Error number: 21036)
Get help: http://help/21036
Thanks for your supports. You can email me via buihuynhmai@yahoo.com directly.
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Oct 2, 2006
Hello,
We currently have one instance of SQL2k5 SP1. We have a couple of publications, and 30 subscribers, on the instance and are considering going to either a cluster environment or db mirroring. Currently our instance seems to be busy and I am wondering if clustering really gives it a performance boost. What are your thoughts/suggestions on going to a cluster environment versus just db mirroring? Can mirroring be used for real-time failover as we need to add that as well? Thanks in advance.
John
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