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4
votes
1answer
268 views

Should I use Database Mirroring?

So I have the following scenario on my hands: I have a product database that runs for a specific app, all inserts into the database come in through three separate connections. Recently I have ...
2
votes
1answer
51 views

SQL Server 2008 R2 Readable Mirror

I know that SQL Server 2012 and 2014 offer AlwaysOn Availability Groups which provide this functionality, but I'm still stuck on SQL Server 2008 R2 for a while. I recently came across this AWS ...
0
votes
0answers
21 views

Database mirroring in SQL Server 2008 R2

I have problem with database mirroring. I have 2 servers on both I have installed SQL Server 2008 R2 and on both I created the same user name and password. Db mirroring is working if I use "This ...
1
vote
2answers
58 views

Detecting and fixing database corruption on SQL Server mirrored database

I’m new to my current company and we have a System Administrator but no DBA. In the past I’ve taken care of DBA related issues at other companies. I’ve run into and corrected database corruption in ...
10
votes
3answers
216 views

Best way to migrate a huge SQL Server database with low downtime over network

Problem definition Our database server needs to be transferred to an other datacenter. It runs on Microsoft SQL Server 2012 Enterprise (64-bit) and contains two databases of about 2TB and 1TB. ...
1
vote
1answer
49 views

What precautions to take when moving a mirrored server

I have a SQL Server 2008 R2 mirror setup running in high safety with automatic failover (synchronous, witness). Over two different nights, the mirror and the primary will be shut down and re-racked. ...
0
votes
0answers
34 views

Set up sql server db mirror specifying IP address for mirroring_partner_instance

Ok. I run: ALTER DATABASE DbName SET PARTNER = 'tcp://10.0.0.0:5022' Command completed succesfully Then run SELECT DB_NAME(database_id) AS 'DatabaseName', mirroring_partner_instance FROM ...
1
vote
0answers
36 views

Why database replication fails when database mirroring is broken?

I'm trying to understand what effect database mirroring can have on replication in SQL Server 2008. Here is current environment: (don't ask me why it was done this way or to change it) Server A: SQL ...
3
votes
1answer
95 views

Effects of turning the transaction safety OFF

I am considering to turn off the transaction safety to maximize the performance. Before that i am interested in finding the current status of transaction safety. Is there any command that we can get ...
7
votes
1answer
148 views

Enabling TDE without breaking existing mirror

I've been trying to enable TDE in a mirrored SQL Server 2008 R2 configuration. Enabling TDE is not so difficult, though when I enable TDE on the principal, the mirror database goes in to a suspended ...
0
votes
0answers
15 views

SQLAnywhere: ODBC and Database mirroring

I'm tying to setup the correct way to connect to a mirrored database via ODBC. Usually a connection string like (taken from tutorial) ...
4
votes
1answer
60 views

What data gets passed between mirroring principal and secondary?

We are trying to figure out which of the below statements is correct when talking about SQL Server mirroring: The master database server executes the query, and takes the resulting transactions and ...
0
votes
1answer
55 views

SQL Server Mirroring and automatic failover - why don't all DBs failover to the mirror?

On SQL Server 2008 R2, I'm mirroring 20 databases on my SharePoint SQL Server with a witness, high-safety. All mirrored DBs have the default mirroring_connection_timeout = 10. And, occasionally, a ...
1
vote
0answers
92 views

SQL Server spending a lot of time creating sp_dbmmonitorupdate

I have an SQL Server 2008 R2 Standard with around 80 databases, 18 of which are a synchronous mirror primary. I'm having a lot of complaints about database speed lately, so I've started digging with ...
0
votes
0answers
28 views

MySQL: migration huge tables between two databases

Hello guys (and sorry for my English). I have 2 DB's - DB1 (staging) and DB2 (production), each day some contend added/changed in some tables in DB1 and should be moved to DB2. Right now it works ...
1
vote
1answer
37 views

user mapping is droped after swithing from principle server to mirror server

I have principal server:A and mirror server:B with DB Name: "DBTest" On the server A there is a username (SQL auth.) call: user1 and is mapped to "DBTest". the Same is on Server B, same username and ...
0
votes
0answers
38 views

mirroring on sql server 2012 on different windows server 2012

I have 2 servers *.203 and *.205 I have sql server 2012 on each of them I tried to make mirroring between them every thing goes successfuly but when I tried to start mirroring it gives me ...
1
vote
1answer
54 views

many Servers of SQL server 2012 needs mirroring

I have two SQL server 2012 instances and I want to configure mirroring between the 2 servers with database. My questions are: How can it automatically change host of one if the other one was dropped ...
1
vote
1answer
41 views

many Servers of SQL server 2012 needs mirroring [duplicate]

I have now simply 2 SQL Server 2012. I want to configure database mirroring between the 2 servers. My questions are: How can it automatically change host of one if the other one was dropped ? Is ...
3
votes
2answers
216 views

What happens in this strange SQL Server Mirroring situation?

Let's assume that two SQL Server instances (S1 and S2) are in synchronous mirroring or in a synchronous Availability Group. Now the following happens: A write happens on S1 and transaction commit is ...
2
votes
0answers
240 views

SQL Server mirroring causing issues

So we have a couple of SQL Server instances involved on mirroring without witness and operating mode is asynchronous in all cases. After we set put mirroring in place, we started facing connections ...
1
vote
1answer
50 views

Database mirroring in sql server

I have setup SQL server mirroring in two servers. I have enterprise edition on primary server. And standard edition on secondary server. To verify data on secondary server I broke mirroring. After ...
3
votes
1answer
80 views

SQL Server Replication w/o network connection

Is there a way to use SQL Server Replication without a network connection? My would-be publisher is an SQL Server 2005. It is on the "outside" as it is connected to my company's primary LAN, which is ...
1
vote
1answer
237 views

What is the possibility that mirroring a database will damage, corrupt, or erase either the primary or target database? [closed]

The last time my company had tried to mirror some databases, everything worked great until one morning they came in and the primary database in one of the mirroring schemes was just blank. They had ...
4
votes
3answers
181 views

Make a Copy of a Microsoft SQL Server 2005 database from a Mirror Copy

I have a SQL mirror database in Microsoft SQL Server 2005. I would like to get a copy of it as a new database so I have the ability to read, write, and backup the database. I cannot break the ...
2
votes
3answers
398 views

Standard Edition High Availability without Shared Storage

I'm a software dev with little experience managing SQL Server so please bear with me. We are developing a piece of software that needs to be highly available, with a significant degree of resilience. ...
1
vote
1answer
605 views

SQL Server database Mirroring on different servers

I tried to perform SQL Server database Mirroring(with SQL Server 2008R2). And I got success to perform mirroring with "High Safety" mode. And for that I have used three instances of SQL Server ...
1
vote
1answer
128 views

Why Are My Mirrored Databases Changing States on Their Own?

Setup: SQL Server 2005 w/SP4 64-bit Standard for all three servers Windows Server 2008 R2 Enterprise w/SP1 64-bit for all three servers 01 is designated as the Principal 02 is designated as the ...
1
vote
1answer
57 views

Database slowdown at random times using mirroing

Our web application suffers DB query timeouts a few times a day at random times. Can you help to work out the cause, e.g. deadlocks, mirroring (disk or network), etc? We have two identical database ...
1
vote
1answer
100 views

SQL Server USE ignores IF block

I want to shrink the transaction log file of several databases using a maintenance plan. Those databases are mirrored, therefore the shrink task cannot be executed on the MIRROR databases, but the ...
0
votes
0answers
238 views

SQL Server: mirroring several tables in different databases

I want to keep several tables in two different databases mirrored. Both databases are within the same server, and both are SQL Server dbs. This mirroring only affects the data they contain, not the ...
0
votes
2answers
513 views

Mirroring between two Ms-sql servers for Migrating server from one Datacenter to other Datacenter

I have a query about microsoft sql server. I'm looking for migrating ms sql server from one vendor to another vendor(Datacenter). I'm looking to have a mirror configuration between servers since my ...
0
votes
0answers
119 views

Database mirroring partner cannot connect to witness

So, I am not sure when this started but at some point in my database mirroring configuration, one of the partners (currently the mirror) stopped being able to connect to the witness. This is a ...
3
votes
2answers
1k views

SQL Server Database Mirroring is going to die. How can I guarantee high availability now?

The Database Mirroring feature of SQL Server is going to die: This feature will be removed in a future version of Microsoft SQL Server. Avoid using this feature in new development work, and plan ...
0
votes
0answers
46 views

Mirroring traffic looks normal but externally reported bandwidth of mirroring traffic is much higher

We have a live sql server in one location, running MS SQL Server 2005 Enterprise on Microsoft Windows Server 2008. We have a similar server in an alternative location (connected by vpn) serving as a ...
0
votes
1answer
53 views

Can't set up mirroring for a specific database

We have several databases. All of them are mirrored. Until now, we never had issues with this. One database had some problems, and now when we try to enable mirror again, it just stops. Message in ...
0
votes
0answers
52 views

TempDB causing high IO writes - dependent on server's max memory setting [duplicate]

I have a mirrored SQL Server 2012 database. The first server has a hugh tempdb write IO load when the maximum memory limit is set above 8192 mb. These 8192 where the original setting for both the ...
2
votes
1answer
119 views

Can you restore log file backups to a mirror database after failure?

Purely a theoretical question as I've been considering possible DR scenarios... In this scenario: The link between a principle and a mirror server becomes unavailable for a period of time (e.g. ...
2
votes
2answers
1k views

Should I pause Mirroring and stop SQL Server services before running windows updates?

I am running Windows update on my SQL Servers (which are in a Principal-Mirror partnership, in High Safety mode). I am starting with updating the mirror and I was wondering, to increase safety, ...
1
vote
0answers
325 views

SQL Server: Principal DB becomes unavailable after problem with mirror DB, even with Set Partner Safety Off?

We've got a very simple mirroring setup here: just a principal DB and mirror DB, no witness, running in high-performance mode with SET PARTNER SAFETY OFF. This problem has happened to us twice now: ...
5
votes
2answers
2k views

Mirroring in SQL Server 2012

I have been trying to learn to do this. I've got newly installed Win 2008 R2 machines, in a workgroup, in the same subnet, and of course SQL Server 2012. I allowed login with SQL Server ...
2
votes
0answers
188 views

database mirror problem with Network Service account

I have two SQL Server 2008 R2 instances installed on same Server and the engine log on as Network Service account which is set by installation. there is a database TestDB on both instances. I try to ...
1
vote
1answer
3k views

Best Possible Solution for Reporting Mirroring or Replication?

Hi I have SQL SERVER 2008R2 Data Centre Edition and I use SSRS and a Vendor application for reporting. I have a Reporting Server where we backup and restore everyday from Live Server to have Data ...
0
votes
1answer
165 views

Database Mirroring and Snapshots

As part of a SQL Server deployment, it was proposed to use Database mirroring as a redundancy option as well as allowing for Reporting and MI to be detached from the Operational DB. The proposal is ...
4
votes
1answer
911 views

Failover scenario with principal “hard down”

My company has a failover pair of SQL Server 2005 instances, which provide database availability for a UL-licensed alarm/call center, where uptime and availability are critical for life safety. ...
1
vote
2answers
222 views

sql server-mirroring 3 sql server

we are developing an application for a company and this company has 3 branches, we design a SQL server for our application we can put this server in one of the branches but as the connection between ...
4
votes
1answer
340 views

Changing autogrow settings with database mirroring

Recently I changed the Autogrow settings for some of the databases on our SQL Server 2008 R2 server. These are involved in a database mirroring configuration, with the principal on SERVER1 and the ...
0
votes
0answers
21 views

SQL Server 2008 log file growing and wont shrink. Hard Drive Space running out [duplicate]

I have a SQL Server 2008 database which has a log file (.ldf) with a size of 360GB and growing every day. The .mdf file is only 25GB. The hard drive is 950 GB and has 150GB free space. I want to ...
2
votes
1answer
282 views

SQL Server full safety mirror commit overhead less then Time to send?

How is it possible that the time to send value is greater then the mirror commit overhead? The mirror operates under full safety so this means that the commit is only done @ principal when the commit ...
1
vote
2answers
323 views

Replicating schema changes between production and development databases [duplicate]

Not too sure if this would be a good and proper way to go about things, so I apologize if I'm kind of far off. Currently running Microsoft SQL Server 2005, and in this we have a database for a ...