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2
votes
1answer
289 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
345 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 ...
6
votes
3answers
312 views

Should we periodically 'refresh' the mirrored copy of a SQL Server database?

When you have SQL Server mirroring set up, do you trust that your mirror database will stay the same as the primary, even after months and months of mirroring?  I know we all check the status, ...
10
votes
2answers
872 views

If I fail over one database, do the others that share the same mirror endpoint fail over as well?

We have two databases setup for mirroring on a single SQL Server instance: a test database and a production database. Both get mirrored to another server using the exact same endpoints. If I go into ...
6
votes
1answer
4k views

Can I shrink the transaction log file on a mirror database?

This is a followup question to a previous question about why I couldn't shrink the log file on the principal database. To make a long story short, I setup database mirroring but forgot to make sure ...
0
votes
2answers
306 views

which sql server edition is good for practice [closed]

Which SQL Server (free/trail) would be good to install, which requires minimum resource and have maximum features. I mean, I can practice mirroring,logshipping and replication. I found this link, but ...
0
votes
2answers
146 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 ...
6
votes
2answers
155 views

Retrieving cached plans fails due to cached objects of database Mirror

I'm trying to retrieve cached execution plans for a specific database object, but this fails because of cached plans which belong to a mirrored database in MIRROR state. The below query, without any ...
1
vote
1answer
527 views

SQL Server 2008 R2 database mirroring - is it possible to have a slave server for multiple master servers?

Scenario is that I have two servers running SQL Server 2008 R2 (64-bit), let's call them DB1 and DB2. I have set up database mirroring for all the databases on these servers so that DB1 is the ...
2
votes
4answers
4k views

How do I determine if a database is the principal in a mirroring setup?

I have two database servers Server1 and Server2, configured with mirroring. A single database, MirrorDB, is mirrored. There is another database on Server1 named OtherDB which is only present on ...
3
votes
0answers
526 views

SQL Server Database Hot Backups: Which Technique(s) to Use for Multi-Level Replication?

I'm reading the many other posts here about mirroring vs. replication, but I'd still appreciate it if someone with some experience would weigh in. My small development team needs to have local ...
5
votes
2answers
2k views

Manually moving SQL instance to another node causes immediate database mirror failover

I have a two-node SQL cluster (2008 R2). Some of the databases within that SQL instance are mirrored to another server on a remote site, using the High safety with automatic failover. The mirroring ...
6
votes
2answers
3k views

Transaction Log maintenance on Mirror database

SQL Server Version: 2008 R2 Enterprise SP2 I am trying to get a handle on our SQL Server maintenance and I came across something I think is incorrect. We have a single production instance with 3 ...
2
votes
2answers
2k views

Database mirroring - link failure between principal and witness

I am using synchronous database mirroring with a witness and am testing the various failure scenarios and the impact on the mirroring session, such as whether failover occurs. Starting with the ...
4
votes
3answers
215 views

SQL Server Database Synchronization

I have a database in a server in Africa, and need a daily sync\restore to a server in Europe. My first idea was to sync the data between the 2 databases, but the database has more than 1000 tables, ...
2
votes
1answer
196 views

can you run sql server 2005 and sql server 2008 r2 in mirror mode?

Must all db servers be running the exact same version to enable mirroring without a witness server? How about with a witness server in place?
5
votes
3answers
4k views

How can I inspect the security settings of a SQL Server Endpoint?

I am in the process of creating a TEST environment for our SQL Server development staff. In production we have 3 SQL Servers, SQL01 contains several databases that are mirrored to SQL02. SQL03 ...
2
votes
1answer
214 views

tempdb thrashing and mirroring permissions (SQL Server) [closed]

We have a client site that uses SQL Server. The site this morning was slow, and we realised that the primary database server was responsible for a lot of disk activity on tempdb (Server 2008, SQL ...
6
votes
3answers
929 views

SQL Server 2008 mirrored Database with manual failover, need reporting database

Our current setup is a principal database used in production with a manual failover mirrored database for HA. I need to setup a reporting database as well. What would be the best approach? Shall I ...
2
votes
1answer
81 views

Response On Database Failover

Let say, that I have principal server named P, and mirror server named M. I've got 7 databases that are in server P, and 7 mirror databases on server M. Whole engine works fine when we are talking ...
4
votes
1answer
195 views

SQL Server Mirroring kicks in before cluster has time to fail over

I have two clusters each with two nodes configured in active/passive; the two clusters take part in a high-availability mirroring session using a separate server as the witness. When a node fails in ...
13
votes
3answers
11k 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 ...
3
votes
1answer
2k views

Version of Witness Server for mirroring SQL 2012

Can I use SQL 2008 R2 as a Witness Server for 2 instances of SQL 2012 Servers being mirrored?