Can refer to disks in a RAID-1 configuration, or low-latency database replication strategies.

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329 views

Database Mirroring and Replication in SQL Server 2008 R2

I have configured the mirroring and replication between 4 servers (A,B,C,D).i.e, Mirroring between A to B and C to D, Replication between A and C. The configuration was a success and I am able test ...
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26 views

How To Roll Back DR Transactions Without Breaking Mirror

We have a full data center DR test coming up and will need to fail over all of our SQL Server databases to the DR site. The majority (>80%) of our databases are SQL Server 2008 R2 using Database ...
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72 views

Change Data Capture not running when Mirror is Suspended

We have 2 SQL 2012 SP2 Enterprise servers that have some mirrored databases. One of these databases also has CDC enabled on a number of tables so that we can run some business logic when there are ...
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674 views

SQL Server Database Mirroring : strange client application behavior upon failover

I am putting a HA SQL server environment up based on three SQL Server 2008 R2 machines and database mirroring. I'll name them : principal.company.intra mirror.company.intra witness.company.intra ...
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54 views

Replication throw an error after failover mirror partner is down in SQL Server

Received an error mentioned below after failover when mirror partner is down. Error : to fail over to a database which is not configured for database mirroring. code: 22037, text: 'Invalid ...
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468 views

Replication of a remote MySQL database to local MySQL database

I'm the developer of my employers corporate private website, a HTML5/PHP/CSS powered site for company reports etc. The site, hosted on a shared hosting package, connects to a remote read-only MySQL DB ...
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46 views

What happens if SQL Server mirroring fails over and during synchronisation?

I have two sql boxes, one primary and one mirror. The mirror stopped synchronising last night for about 12 hours and so now the primary is transferring about 25GB of logs that built up. However ...
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36 views

Data mirroring suggestions

On my test environment, I have a SQL 2012 2-node physical cluster that accesses a common iSCSI storage on a separate Windows Server 2012 box. What options are there if I want to backup this storage to ...
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19 views

MySQL ODBC Mirror/Failover

I am wondering if it is possible with the Windows MySQL ODBC driver to mirror the data writing on a local (Access) database or, at least, to write on the local database if the writing on the remote ...
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58 views

Mirroring via dedicated NIC between two multi-instance clusters

Scenario: Two node SQL Server 2012 cluster in Primary Site. Two node SQL Server 2012 cluster in DR site. Both sites connected via general MPLS network. Replication line available between the two. ...
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32 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 ...
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34 views

SQL Server Mirroring with Certificates

I'm struggling with setting up mirroring with the following configuration: Server 1 running SQL Server Standard 2008 R2, Principal Server 2 running SQL Server Standard 2008 R2, Mirror Server 3 ...
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120 views

Multi Session Mirroring using 1 witness server, cannot find certificate

I am trying to use 1 witness server for 2 mirrored databases that reside on different servers. For example: db1 on server(A) mirrored to server(B) using witness server(1), and db2 on ...
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337 views

SQL Mirroring synchronize logins and agent jobs

We have just started using SQL Server mirroring for several clients on SQL Server 2008 R2 Standard. We've got the SQL Server mirroring working fine however now we run into the issue of replicating ...
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95 views

Mirroring failed over - created 2 principal database and will not allow me to drop one of them

For some reason my mirrored servers triggered an automatic failover. I have 2 databases that both think they are the principal server, one is "Principal, Synchronized/In Recovery" and the other is ...
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24 views

Any way of checking mirroring monitoring whilst the primary is unavailable?

I have two sql boxes, one primary and one mirror. The mirror stopped synchronising last night for about 12 hours and so now the primary is transferring about 25GB of logs that built up. It's now ...
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290 views

Mirror database on same server instance for better read performance?

I am developing a somewhat big web application, which uses data which is aggregated using a crawler. The crawler is constantly writing to the database and updates many tables at the same time. For the ...
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343 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 ...
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231 views

SQL Server Mirroring send/receive ack time not normal

I have a problem that arises during the performance test by microsoft team in my client. The report that is given to us provide information about whether or not a parameter is good based on the Object ...