Mirroring Verification
Jan 17, 2007
I connected to the mirror server and the database is in restoring mode, which I believe means I can't query it. I found the Database Mirroring Monitor but it shows the same thing that Management Studio shows, which is Synchronized.
Do I just have to trust that Synchronized means everything is working?
I was hoping there was a way to look at the tables and verify that changes were taking place without performing a manual failover
Thanks in Advance for your help
Casey Smith
caseys@nhcolorado.com
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Jun 9, 2008
I have a report with 5 tables. After I've generated the report using sql how do I verify if it is right or not?
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Jun 19, 2008
How is it possible to use sql to verify F: drive is on disk 0 ?
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Jan 25, 2006
Hi
I already have some junk data in my tables , need to check if the email id entered makes sense or not
Want to check whther there is only 1 @ character or more...etc
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Kid
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Jul 7, 2006
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Jan 7, 2008
hi
there is a problem when i insert data into tables in data base from textbox, spaces are added to the string so when i write the same data again in another textbox to retrive the data from the table there is a conflict happened
any one can help me to solve this problem
more explaination:
i use 2 textboxes to register a user as member in web site one is user name and the other is password and save the inserted data in my database
but when i make login in the same registerd username and password a conflict happened because the both user name and password in data base stored with spaces after there's string in database.
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Aug 30, 2002
I get the following error when I run a job created by a maintenance plan that
runs a database backup.
[2] Database OurData: Database Backup...
The backup was not performed since data verification errors were found.
Any input on how to correct this is appreciated.
Thanks
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Apr 17, 2008
i have one task in which i have to match some attributes(required for creating a new databse) with the exiting database, are these attributes present in exisisting database, if yes how many , and how many are not,pls do reply
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Jun 19, 2007
Hello
I Just installed Reporting Services 2005 and I have a problem to make work
After installing it and setting different properties in the Reporting Services Configuration Manager, When it comes to verifying the installation, http://localhost/ReportServer or http://localhost/Reports pops up a Login Window, Where I enter Windows Account Username/Password, but this windows pops up again 3 times then I get Error page with the message:
HTTP 401.1 - Unauthorized: Logon Failed
Internet Information Services
SQL Server 2005 with SP2 is installed on WinXP SP2
What could be the reason?
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Aug 27, 2015
differences betwee DBCC CHECKDB and page verifacation. The best practices indicate you should run DBCC CHECKDB regularly and set page verifacation to CHECKSUM. Both seem to be linked to identifying database corruption? Are they checking for the same thing? Or are they serving different purposes?
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May 9, 2006
After the installer has asked for authentication mode and has started verifying the authentication it simply hangs. I've let it sit there for an hour before taking the installer forcibly down but nothing seems to be happening except for two osql.exe processes showing up in the task manager.
I've tried both windows authentication and SQL server authentication but the outcome is always the same. At the same time I'm, however, able to login to the database engine and all services with management studio using both authentication modes.
The last few lines in HotFix.log are as follows:
05/09/2006 09:49:09.999 Authenticating user using Windows Authentication
05/09/2006 09:49:10.015 SQL Service MSSQLServer was previously running, ready for authentication
05/09/2006 09:49:10.218 SQL Agent Service SQLSERVERAGENT was previously running
05/09/2006 09:49:12.093 User authentication was successful
This would indicate that there's nothing wrong with the authentication but with whatever is supposed to take place after that.
There are quite a few lines in the log similar to the one below:
05/09/2006 09:47:08.438 Failed to read associated hotfix build information for the following file: C:Program FilesMicrosoft SQL ServerMSSQL.2MSSQLBinnSQLServr.exe
Redist9_Hotfix_KB913090.log seems to be the only individual log file that ends with line saying "Hotfix package launched" whereas all other logs have several lines of checks being completed successfully.
Any ideas what might be causing the installer to hang and how to fix it?
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Feb 18, 2015
I am thinking about moving some backups from the local machine to a remote server. Right now, I am using Ola Hallengren script for backups. The script performs checksum on the backup while it's being written on the disk. I am going to move the files using Robocopy utility. How do I check the data integrity once the backups are transferred to the remote server?
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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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Aug 6, 2007
I need to be able to create completely random and unique keys for a key verification system, which would require a user to enter a pre-defined key in order to activate their account, but I need to be able to create those keys on the fly.
This is going to be a key that will be mailed to them on paper, and unfortunately means it needs to be relatively short in order to prevent too much confusion while they are typing it in.
I like the newID() function in SQL, but the ID that it creates is a bit excessive to say the least for someone to have to type when registerring.
I use C#, so I wouldn't have much of a problem creating a small app to create x number of keys, which will sit in the DB until I need them, but I would rather not have to fill the DB with a million or so ID's which might never be used, and don't want to create too little that I have to track when I might need to add more, in case I start to run low on ID's.
Re-using ID's may be an option, but I would prefer to keep them intact for the life of the accounts.
If there is something that I can do to simulate the newID() function, but generate unique/random ID's which look more like this: A97-2C5-77D than this: A972C577-DFB0-064E-1189-0154C99310DAAC12 I would be very grateful to know about it.
Thanks!
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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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Oct 12, 2007
Hi All,
Does anybody know the OS requirements for Database Mirroring? I checked BOL and Google but couldn't find any info on that.
Thanks.
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Feb 27, 2008
Hi All,
I have read on the web that high protection mode not recommended, except in the event of replacing the existing witness server. But I can't find the reason why anywhere. Can anybody explain? Thanks.
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Mar 12, 2008
Hi All,
Couple of questions about database mirroing.
1. Once the mirroring is setup is it possible to switch between high-protection and high-performance modes? If it is will I have to stop the mirroring, switch the modes and then restart it again?
2. Let's say the principal server went down and I manually failed over to the mirror server. Mirror server runs as a new principal server for a couple of days and then I bring the original principal server back up. What needs to be done in order to bring transactions on the principal server up to date?
Thanks.
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