DB Mirroring Setup
Nov 14, 2006
Prepare to setup DB mirroring. Three MS 2003 servers. Two SQL 2005 standard edition as partners and one SQL 2005 Express as witness. Question:
1. Servers are under workgroup (not domain user). Is it ok to use local service account to run DB engine service on all three machine? Is SQLServerAgent service required when setup mirroring?
2. If SQL Server is running as a local service, Do I have to manually create certificates before setup mirroring?
3. After create certificates, can management studio be used to create endpoints on all three machines? If yes, how to select certificates that have been created? If no, can management studio be used to setup mirroring after endpoints have been created?
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Apr 5, 2006
After going through the Enterprise Manage mirroring setup, I get the error message ...
The server network address "TCP://MYMACH.mynet.net:5022" can not be reached or does not exist. Check the network address name and reissue the command. (Microsoft SQL Server, Error: 1418)
I have three instances of SQL Server 2005 Enterprise Edtion
MSSQLSERVER (primary) endpoint 5022
MSSQLSERVER (partner) endpoint 5023
MSSQLSERVER (witness) endpoint 5024
I have enabled TCPIP and named pipes on all three protocols.
In surface configuration I have enabled everything.
Each instance has the -T1400 flag set.
Each instance is running under mixed security.
Each sql Server and sql agent instance runs exactly in the same domain account.
The machine has been rebooted.
The following tests all pass
telnet MYMACH.mynet.net 5022
telnet MYMACH.mynet.net 5023
telnet MYMACH.mynet.net 5024
This problem happens both with Enterprise Edition and Developer Edition.
Any ideas?
AIM
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Nov 28, 2007
Hi, I'm having an issue setting up Database Mirroring. The environment here could be an issue.
I'm trying to set this up using 2 different servers both are SQL Ent Edition SP2, windows 2003. I'm not using a witness at this time. The 2 servers do not belong to a domain. They are both in workgroups.
I can setup the endpoints and everything up to the point just before I start mirroring. The issues happen when I go to start mirroring. It gives me a nasty error "please use a FQDN to establish the endpoints. The problem here is I don’t have any FQDN for these servers since they're in a Workgroup.
So, my question here is and I haven't found anything stating that you can't set up mirroring in a workgroup environment but is it possible? I'm assuming since its yelling at me for a FQDN that I can't. Is there any other ways to implement mirroring without a domain?
Thanks for your time, help!
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Feb 29, 2008
Hello room,
I am newbie to Database mirroring.
I have 3 window server 2003 running in window virtual server 2005.
Server1 of sql 2005 instance:
-- SQLDev01
Server2 of sql 2005 instance:
-- SQLDev02
Serve3 of sql 2005 instance:
-- SQLDev03
The servers are running on DC and the sql servers was setup with Window authentication mode only.
Also, All the sql instances'services are running under single domain user name.
e.g: sqladmin.
I have tried to setup manually and t-sql and both running into some issues.
Can anyone help and share t-sript to setup database mirroring.?
Thanks for the help.
TJ
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Apr 15, 2008
when i try to establish mirroring with the below command i am getting an error..
alter database SharePoint_AdminContent_c32bc-190-4-b1-1cab
set partner = 'tcp://mirror-server.3000';
go
the error :
Msg 102, Level 15, State 1, Line 1
Incorrect syntax near '-'.
i am not sure why it's throwing an error..any help would be appreciated...
thanks
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Jun 23, 2006
Hi:
I am looking for a Step-by-Step document for setting up and configuring of database mirroring if one is available. I have gone through BOL and found some related documentation but want to see if a step-by-step document is available. If so can any one please direct me to the resource.
Thank you
AK
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Sep 11, 2015
What are the DB mirroring trace flags and how to use ?
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Jun 6, 2007
Would anyone have a suggestion on how to setup a partner to partner NIC configuration for heartbeats/mirroring traffic? I've been told this is the recommended setup but have not found much on how to do it. We currently have a teamed NIC config for redundancy, but would like to have a separate set of NICs on each partner so that mirroring traffic is not interrupted by any regular network traffic.
We also have a witness running in full safety mode. Does this mean partnerA and partner B both need NICs with a crossover cable between them AND is it recommended for the witness to also have extra NICs to both partnerA and partnerB (w/ crossover cables)?
Any suggestions/help/links on properly configuring this would be appreciated.
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Sep 13, 2007
I'm setting it up using the directions provided by Microsoft @
http://msdn2.microsoft.com/en-us/library/ms189047.aspx
The problem I originally ran into was exactly like the one mentioned in the
following posting:
http://www.microsoft.com/technet/community/newsgroups/managed/dgbrowser/en-us/default.mspx?&query=mirroring&lang=en&cr=US&guid=&sloc=en-US&dg=microsoft.public.sqlserver.clustering&p=1&tid=95381f96-a34a-4d99-9e31-12719452a11d
I found an article online stating that this can occur of your principle
backup wasn't restored to the mirror server in NO RECOVERY mode. I missed
that step when performing the first restore, so i deleted that database and
started over using the NO RECOVERY option on the mirror restore.
The problem I've run into now is that after my restore executes and
completes, the database remains in a (Restoring...) state and never becomes
accessible.
Anyone know what causes this?
Thank you,
- Tyler
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Oct 27, 2015
I have a 2 node cluster having 4 cores each wherein having 3 instances of SQL 2008 R2 enterprise comprising of 60 databases, 20 on each instance. I need to setup mirroring for each of the databases to a secondary server having 4 cores and 3 instances.
What i understand is that in this case the mirror server will be providing max of 512 worker threads and the 60 mirror databases would consume 240 threads.
What all needs to be checked for looking into the feasibility of going ahead with a async mirror setup as mentioned above.
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Feb 19, 2015
We have a database. It is enabled for mirroring. We need to delete the old records. That is around 500k records from a table. But it has foreign key relation. How to do in Production servers these kind of deletes?
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May 3, 2008
Server A = primary SQL DBs (mirroring origination)
Server B = failover SQL DBs (mirroring destination)
For database mirroring a witness is required.
Can the witness live in another instance of SQL on server B?
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Oct 12, 2015
Using SQL Server 2008, we would like propose mirroring between two servers of a critical database. Since we initiate, may require to clarify on its purpose and also required changes from application end.Any changes required from OS Level? (I believe both servers IP or Host name should be added in host entries. Mirroring ports should be allowed/open including Principal and mirror server IP Addresses): Windows Team.Any changes required from Application? (Instance name, authentication: user name and its password should be added in web config files): Application Team.Any changes required from Network Team?Also for mirroring both the principal and mirror servers should be with same version, does it only mean SQL Server 2008 versions are enough or does it also mean to say build numbers 10.00.4000 should also be same.URL....
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Sep 15, 2015
I need to set up asyncronous data replication across two clustered instances of SQL 2012 across 2 Datacenters. Both the datacenters have a common domain however the vlans are different. There are only 3 small databases on the primary instance.
any issue in setting up mirroring in this case as vlans are different.
Operating system is Windows 2012.
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Jan 5, 2006
I have XP Pro SP2 with MDAC 2.8.1022. It had a problem so I tried to reinstall MDAC and got a Fatal Setup Error. This setup does not support installing on this operating system. I downloaded MDAC 2.8 1177 and get the same error.
I thought of uninstalling/reinstalling SP2, but this is a 2 month old Dell Latitude 610 with factory installed XP. There is no Windows Service Pack 2 option listed in the Control Panel > Add/Remove Programs.
There's some other strange things, so I wonder if they are related.
1) I have Paul set up as an administrator account. Some folders like MSSQL show that account with no permissions. I grant all the permissions to Paul for that folder. I come back later and the permissions are gone.
2) I deleted 20 files in Explorer, but 7 of them did not go away. I deleted those 7 again and they instatnly reappeared. I deleted those 7 again and then they finally went away.
3) I get a slow reaction time for things like Windows Explorer and opening and closing programs. This is suprising since it has 2 gig of RAM and 2.3 Gig processor. Could it be a memory handling problem that's causing OS problems. Probably, the memory didn't handle the OS installation well and the whole system is compromised now.
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Jul 23, 2015
We're doing upgrades from SQL 2008 R2 to SQL 2014. This is blocked due to RS is installed but not configured. Our desired action is to uninstall RS and proceed with the upgrade. But when setuparp.exe is raised, it does not list all the features on the 'Select Features' page. In fact, it only lists the last 2 shared features (SQ Client Connectivity SDK and Microsoft Sync Framework). However, all items appear to be listed on the 'Select Instance' page including RS. I've seen this issue on 2 of our SQL 2008 R2 Servers already.
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Nov 15, 2015
I'm trying to install SQL Server Management studio 2012 on my Windows 7 (x64) standalone laptop. When I click "New SQL stand-alone installation..." it runs a Setup Support Rules check and always fails "Setup Account Privileges". I've looked into the error and I keep getting that I need to change security rules but I don't have that option in window 7. How do I get around this without having to resort to a computer running Windows Server?
I have Visual Studio 2013 premium installed along with Localdb v11. I just want to connect and manage my database engine through SSMS when developing any application.
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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
I am running a number of SQL instances on my PC. Within the network, I have think server with various System Center components. For compatibility reasons, some features of System Center 2012 R2 had to be delegated to different SQL databases. My question is, because there is now more than one IP address on my system, and each instance of SQL is assigned to its own IP, is there a way to setup DNS and SQL so the namespace points to the desired IP address? For Instance:
MSSQL2008 instance is set to run on = 11.12.13.1
MSSQL2012 is set to run on = 11.12.13.2
IN DNS:
A Record: Mike-PC = 11.12.13.1
A Record: Mike-PC = 11.12.13.2
If I want to use MSSQL2008 by specifying Mike-PC as the DNS name, how would I do that with 100% accuracy? If there is another way to get the job done, I am more than willing to approach this differently.
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Mar 7, 2000
Hi All
By mirroring I mean device mirror, since I do not think that there is a database mirror
We only have disk mirror. I also know that SQLServer 7.0 does not provide Mirror, unmirror or remirror. and for this we have to refer to Windows NT disk mirroring.
I need mirroring in both versions SQL Server 6.5 and 7.0
I want to have mirror on another server. I need this for tonight.
Sincerely.
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Apr 1, 2008
I hereby let u know the steps that i undertook for performing mirroring
1. Created a database in Principal server named Mirror1 and one table named tblMirror1.( no values inside the table)
2. Repeated the same in Mirror in Witness
3. Selected the Principal server's database -->right click-->tasks-->mirror
4. from the left hand panel selected Options -->recovery model-->full
5. selected Mirroring from left hand panel-->configure secuirty-->entered mirror and witness name--Success
6. When I click on start mirroring I have an error stating
" Alter failed for database mirror1"
"Database mirroring cannot be enabled because Mirror1 database may have bulk logged changes that have not been backed up etc...."
7. followed this one
BACKUP database mirror1 TO DISK='C:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLBackupmirror1_FULL.BAK'
got the answer as
Processed 160 pages for database 'mirror1', file 'Mirror1' on file 2.
Processed 1 pages for database 'mirror1', file 'Mirror1_log' on file 2.
BACKUP DATABASE successfully processed 161 pages in 0.318 seconds (4.147 MB/sec).
According to sources
Run a restore of this backup on your mirror.
This can be done through the GUI or using a T-SQL command.
The database restore must use the NO RECOVERY option, so the database stays in a loading state.
Also the database name on the mirror must be the exact same name as the principal
RESTORE TestMirror FROM DISK='C:Backup TestMirror_FULL.BAK' WITH NORECOVERY
Hence did the below
RESTORE database mirror1 FROM DISK='C:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLBackupmirror1_FULL.BAK' WITH NORECOVERY
ERROR
Msg 3201, Level 16, State 2, Line 1
Cannot open backup device 'C:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLBackupmirror1_FULL.BAK'. Operating system error 2(The system cannot find the file specified.).
Msg 3013, Level 16, State 1, Line 1
RESTORE DATABASE is terminating abnormally.
HENCE MODIFIED AS
use master
go
RESTORE database mirror1 FROM DISK='C:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLBackupmirror1_FULL.BAK' WITH NORECOVERY
Msg 3201, Level 16, State 2, Line 1
Cannot open backup device 'C:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLBackupmirror1_FULL.BAK'. Operating system error 2(The system cannot find the file specified.).
Msg 3013, Level 16, State 1, Line 1
RESTORE DATABASE is terminating abnormally.
========
Kindly let me know please where am i going wrong
Regards
cmrhema
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Mar 13, 2007
hello
if i run dbcc dbreindex on a database thats the principal in a mirrored pair, will the mirrored database indexes also be rebuilt?
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Mar 27, 2007
i am for the first time creating the database mirroring.I am moving the all the usr databases and everything from test server to a new server called test1.And from that new server i am restoring on the another new server called test2 for database mirroring.But in the test server , the transaction logs are backup for every 15 minutes.So in this case is there a need to move all the logs to test1 and then to test2 for mirroring?? or there is no need to move transaction logs to the new servers at all??
my secnario
------------
server1 server2 server3
-------- ------- --------
test test1 (moving everything from test) test2(mirror for test1 )
all the transaction logs are backup in test for every 15 minutes. so in this case , do i need to move the transcation logs from test to test1 and test2
or there is not need to move at all??
thanks,
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Nov 7, 2007
Can anyone please tell me what mirroring is??
Thanks in ADvance
RKNAIR
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Jan 30, 2008
I have sql server 2005 on my vista laptop.
When i set up database mirroring, do i have to set up Principle,
mirror and witness on seperate servers as well as seperate instances.
Or can i install 3 seperate instances on the same laptop im using and still use mirroring? I have tried to start mirroring with all three instances on my laptop but i receive an error.
Regards
Rob
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Mar 26, 2008
Hi All,
I am trying to set up database mirroring and in the initial phase of database restoring im getting some problem.
the scenario is .
1- I create a TestMirror on server1(which will be principal server) and backup full and transaction logs.
2- create TestMirror in server 2( Which is going to be used as mirror) .
3- restore the full backup of "TestMirror" from Principle Sever with NORECOVERY option.
this step results in a message box showing that the restore was successfull...
but the database explorer( management studio) shows the TestMirror in (restoring ...) state. and no more operations can be performed with this Database. ( because the database is in restoring mode).. please help what this issue is?
Thanks In Advance for any suggestions
-- Krishna
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May 6, 2007
hello
i used following query to create endpoint
CREATE ENDPOINT Endpoint_Mirroring
STATE = STARTED
AS TCP (
LISTENER_PORT=5024
, LISTENER_IP = ALL
)
FOR DATABASE_MIRRORING (
AUTHENTICATION = CERTIFICATE HOST_A_cert
, ENCRYPTION = REQUIRED ALGORITHM RC4
, ROLE = ALL
);
GO
i got the following error msg:
Msg 1498, Level 16, State 2, Line 11
Database mirroring is disabled by default. Database mirroring is currently provided for evaluation purposes only and is not to be used in production environments. To enable database mirroring for evaluation purposes, use trace flag 1400 during startup. For more information about trace flags and startup options, see SQL Server Books Online.
any help plzz
thanks in advance
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Aug 22, 2007
Hello,
I have Microsoft SQL SERVER 2005 installed in my system.
To try out mirroring, I rightclicked on the database went to the tasks, but i found that in Status its written
"This database has not been configured for mirroring"
What shall I do now?
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Oct 22, 2007
Hi,
I am new to DB mirroring and witness. For the purpose of learning, any one can suggest me like is there any posibility to do the DB mirroring and witness on 2 or 3 VHD Files. Basically, these VHD's are downloaded from microsoft website.
VHD's have W2K3 and SQL2K5 EE .
Please suggest me in this.
Regards,
Mohanraj Jayaraman
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Nov 10, 2006
Hello Guys,
Can any one help I want SQL to email me when a database fails over I can find alerts for loads of thing to do with Mirroring but not to notify me when a database failover.
Thanks matt
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Nov 23, 2006
How sql server will mirror big transaction ?
Example
inserting 10000000 rows in 1 transaction (columns big ,text data ...)
will it transfer data in multiple packets (size, location of temp file) to mirror ?
will it transfer data in 1 packet (size , location of temp file ) to mirror ?
Can you control transfer (size , location of temp file) ?
Thanks
Alex
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Sep 28, 1998
Do you know if the following excerpt from technet is still true? I want to mirror a device over the net to another server. Has anyone tried this with sql server 6.5 or is it still not a feature?
----------------------
PSS ID Number: Q115043
Article last modified on 04-29-1997
4.2 | 4.2
OS/2 WINDOWS
================================================== ====================
----------------------------------------------------------------------
The information in this article applies to:
- Microsoft SQL Server version 4.2 for OS/2
- Microsoft SQL Server version 4.2
----------------------------------------------------------------------
The use of database devices accessed over the network is not a supported
configuration for either the OS/2 or Windows NT versions of Microsoft SQL
Server. All database devices, including mirrors, should be configured to
use local drives. Database dump devices are an exception to this
restriction.
----------------
Thanks.
Gail Wade
Raymond James and Associates
Clearwater, FL
gwade@is.rjf.com
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Aug 10, 2006
I am testing out Synchronous Mirroring and have a question about failover. It seems the only way I can failover to the Mirror box is to log onto the Principal box and hit the Failover button? Is the whole point of mirroring to be able to handle the Principal not being available? Is there another way?
TIA, ChrisR
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