0
votes
1answer
17 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 ...
3
votes
2answers
343 views

Ola Hallengren with database mirroring

I am about to setup Ola Hallengrens database maintenance plan. We have our database mirrored and I was just wanting to know if I need to run the script on both my Sql Server instances or only the ...
0
votes
0answers
50 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 ...
1
vote
0answers
27 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 ...
1
vote
1answer
67 views

Snapshotting Database Tables

I have a reporting database (in SQL Server) that takes nightly snapshots of the production data (Oracle) for users to query against for the next day, but now the requirement is getting to be that they ...
1
vote
1answer
86 views

Database failover/failback history

I am a SQL DBA newbie, and I am trying to get the failover/failback history for one of our mirrored servers. I am able to get the the failover history from event viewer but do not know how to the get ...
0
votes
1answer
139 views

Troubleshooting Mirroring Configuration

I am configuring database mirroring on SQL Server 2012. After configuration I am getting the following error when attempting to start the mirroring session: tcp server cannot be reached or does ...
3
votes
1answer
177 views

SQL Server DR, mirroring or virtualise and mirror

I have a client with a small business server 2008 Premium installation. This obviously includes SQL Server 2008 standard on a separate 2008 server. On the SQL we run several line of business ...
0
votes
2answers
102 views

Update primary SQL Server in mirrored environment using transaction logs from old environment

I'm currently migrating a large (~40gb) database to a new environment. The new environment is a HA/mirrored set up with primary, mirror and witness nodes. I'm backing up the database in the old ...
0
votes
1answer
111 views

Configure SQL Server Database for High Availability & Warehousing

I have 3 DB servers (DB1, DB2 & DB3 - all on Win 2008 R2 with SQL Standard 2008 R2 in the same datacenter). Let's assume AdventureWorks as an example database. My goal: - Setup DB mirroring with ...
2
votes
0answers
339 views

Failover only working for Classic ASP, not ASP.net [closed]

Setup: All machines run Windows Server 2008 Enterprise SQL Server 2012 Standard (Primary) SQL Server 2012 Standard (Mirror) SQL Server 2012 Express (Witness) Root issue: Our ASP.NET application is ...
5
votes
3answers
541 views

How to reduce network latency during mirroring?

We are using SQL Server 2008 R2 Standard edition for mirroring. But we found out that network latency is too high. It takes nearly four times time to complete a transaction while mirroring is active. ...
5
votes
1answer
1k views

How do I shrink the physical Transaction Log file when it's the principal in a mirror?

We setup database mirroring over the weekend, and forgot to re-enable the job that backs up the transaction logs. When I came in this morning, the transaction log had ballooned to 58GB, and was taking ...
0
votes
2answers
104 views

Can I use replication/mirroring to have a “Current” database and a “Full History” copy?

I have a database that is used for current operations. The amount of data is starting to get a bit to much for the applications using it. Most of the data is older and is very rarely needed. I am ...
1
vote
1answer
137 views

Can I run a Report Server and a Mirror server from a working Log Shipping secondary instance? [closed]

Our setup: City A - Primary server for logshipping City B - Secondary server for logshipping Now there is a lot of data being updated from A - B. And the server in City B is underutilized, and it ...
4
votes
2answers
537 views

SQL Server replication for off site copy

We have our Primary SQL Servers in-house (15 primary servers at the moment (500 databases approx overall), most of the servers have hex core processors). These are mirrored to other backup servers in ...
2
votes
1answer
412 views

Should I use Asynchronous Mirroring?

I plan on setting up mirroring on a SQL 2012 database which is currently in production. My concern though is how much it will affect the performance of the principal database. I am using mirroring ...
0
votes
1answer
73 views

SQL Server 2008 Mirroring

How would one start the secondary mirror instance if the principal SQL server instance went off line?
5
votes
1answer
2k views

Mirroring - Server network address cannot be reached

I have SQL Server 2008 R2 Installed. It contains three instances. Default (MSSQLServer) FirstInstance SecondInstance All these are Log On as Network Service.. Default Instance is Principa ...
1
vote
2answers
255 views

Is Log Shipping or Mirroring a better solution for Disaster Recovery?

I am planning an index rebuild, however my logs are prone to huge overblown sizes. In fact I was leaning towards doing an intelligent re-indexing, but since the fragmentation levels are greater than ...
4
votes
1answer
1k views

SQL Server ODBC Mirror/Failover Partner

Background/Context We are in the process of moving our SQL Server 2000 databases to a mirrored SQL Server 2008 R2 server with a witness and automatic failover. We have both .Net and Access ...
2
votes
0answers
386 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 ...
9
votes
3answers
6k views

What can cause a mirroring session to timeout then failover? SQL Server 2005

We have two production SQL Servers running SQL Server 2005 SP4 with cumulative update 3. Both servers run on physical machines that are identical. DELL PowerEdge R815 with 4 x 12 core CPUs and 512GB ...
4
votes
2answers
1k views

Transaction Log and mirroring - looking for dumbest explanation possible

First of all I must admit that I struggle with concept of Transaction Log. I mean - I do understand that it is Log of all Transactions that happen on database, but when it comes to properly putting it ...
3
votes
1answer
497 views

Best Approach for Mirroring Data from SQL Server to MySQL

I need help in regards to replicating data from a third party point-of-sale system with a SQL Server backend to a MySQL DB. Specifically, can anyone suggest a best way to mirror data from SQL ...
3
votes
2answers
214 views

Reduce load off primary server by using log shipping, or mirroring, or something else?

I have previously asked the below question about LogShipping frequencies, but I think I might be approaching this problem incorrectly (LogShipping frequency) Problem I have a high volume site that I ...
4
votes
2answers
3k views

What are the differences between Mirroring and Failover Clustering and when is each one recommended over the other?

What are the main differences between Mirroring and Failover Clustering? What kind of problem each one solves and in what kind of scenarios is each one recommended over the other?
1
vote
1answer
102 views

Rolling changes to production databases

We're currently using Clustering to do fail over for our SQL environment. There are two servers that use the same shared drive. The SQL database is on a shared drive. This provides OS and hardware ...
8
votes
2answers
308 views

Mirror log empty on primary but fine on the mirror

We have dozens of principle servers and corresponding mirrors, most are working fine, however, 1 of them is acting strange. Specifically, the sp_dbmmonitorresults proc returns all columns as NULL for ...
2
votes
0answers
80 views

Permon counters on SQL 2005 mirroring (user defined counter log file is empty) [closed]

I've been attempting to gather performance counters for mirroring using perfmon, over a period of time and saving this to a log file. I am able to do this without problem for general SQL Server ...
2
votes
1answer
591 views

Mirroring not working after a server crash

I'm using SQL Server 2008R2. Last night, the host machine on which my mirror database was running basically went belly up. Thankfully the principle database was on a different host server and so was ...
0
votes
2answers
548 views

Mirroring after restoring the database on a new machine

We've had alot of problems with one of our database servers and two days ago the call was made to change a disk and reinstall the OS. Now this server functioned as part of a mirroring setup. Basically ...
8
votes
2answers
2k views

How to create an Event Notification that runs a Job/procedure when mirroring state changes

I'm asking this question in the sequence of this one Can I send a string over TCP using T-SQL? Remus Rusanu exposes what it seems to be an optimal solution for my problem, but... I'm too immature to ...
1
vote
1answer
379 views

Replicate/Mirror SQL Server schema to slave databases

I have a empty database called MASTERDB and around 10, or more, slave databases that are copies of the MASTERDB database. MASTERDB will be always empty, as I only need the schema. No data is going to ...
2
votes
2answers
985 views

Manual failover error, not in correct state

i'm doing some tests to build one database with one mirror database and one witness. so far, i'm failing in the first test, I want to kill the witness, then the Main database, and then put the Mirror ...
4
votes
2answers
1k views

Read-only copy of SQL Server database

We have main database, through out day we insert/update this DB through main application(windows). We have another web application which is suppose to just display content from main DB but instead we ...
6
votes
1answer
625 views

Mirroring problems after removing domain

I successfully created a mirror with certificates between two servers. One of those servers was a domain controller. After removing the domain the mirror was interrupted.After hours of searching i ...
0
votes
2answers
374 views

Upgrading Instances with Mirroring

If you want to upgrade or install a patch on two separate instances that house both the principal and mirrored database, how can you go about that? If the database that is being mirrored needs to be ...
4
votes
1answer
573 views

Impact of an Asynchronous Mirror / Full Recovery Model on Performance

For an asynchronous mirror in SQL Server 2008 R2, using the full recovery model is required. Assuming that the network and disk IO on both sides of the Mirror can keep up with the transaction logs ...
3
votes
2answers
152 views

Database Mirroring of SQL server

I have two databases that are mirrored to another server using database mirroring. The mirror server has to be down for some reason for few days. Now, the production server is having principal ...