Microsoft Sql Server Error 955
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Database Mirroring Issues In Sql Server 2008
Server > Database Mirroring Question 0 Sign in to vote Hello, principal disconnected in recovery sql server I'm having a problem with two mirrored databases, using SQL Server 2005 SP2, that autmatically failed over last night for
Error 1418 In Sql Server Mirroring
unknown reasons. I was trying to fail them back over to the primary SQL server because it says the mirror is disconnected and out of sync. Other databases failed over too, but I was able to fail those back over without a problem. It's just these two. I removed the mirror from the secondary server thinking that this would allow me to restore the database back on the primary server, but that didn't help. These two databases show a status of (Principal, Disconnected / In Recovery) and I still cannot do anything with the two databases on the primary server. When I try to pull up the properties for them, I get the following error: "Database
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for Help Receive Real-Time Help Create a Freelance Project Hire for a Full Time Job Ways to Get Help Ask a Question Ask for Help Receive Real-Time Help Create a Freelance Project Hire for a Full Time Job Ways to Get Help Expand https://www.experts-exchange.com/questions/22638331/SQL-Mirroring-problem-between-Backup-and-Witness-during-Failover.html Search Submit Close Search Login Join Today Products BackProducts Gigs Live Careers Vendor Services Groups Website Testing Store Headlines Experts Exchange > Questions > SQL Mirroring - problem between Backup and Witness during Failover Want to Advertise http://www.sqlservice.se/force-sql-server-mirroring-on-specific-ip-network/ Here? Solved SQL Mirroring - problem between Backup and Witness during Failover Posted on 2007-06-16 MS SQL Server 2005 Windows Server 2003 1 Verified Solution 2 Comments 1,329 Views Last Modified: 2008-04-24 I am having problems sql server with a SQL 2005 Mirroring setup. Here is the configuration: 4000A - IIS NLB/SQL 2005 Witness 4000B - IIS NLB/SQL 2005 Backup 4000C - SLQ 2005 Primary All three servers have 3 nics - 1 internet facing (and for A & B configured for NLB), 1 for backend communication and 1 in network with a backup SAN. The backup LAN does not allow communication between the servers. The public facing IPs are on the in sql server 192.168.68.0/24 range. The internal facing IPs are on the 192.168.68.0/24 range. While all servers are up, everything is fine. I have configured the SQL mirroring for the four databases required and it works fine. The databases show up as being mirrored, in SQL Management Studio, I can fail them over manually using the failover button and they all continue to respond. My problem occurs when they failover due to a failure on the main database server - 4000C. In this scenario, it appears that the backup server (4000B) loses connectivity to the witness server (4000A) for some reason. The servers realise 4000C has gone down, automatically fail over to 4000B, but then stop taking requests for the database on 4000B. In Management Studio, the databases show up as (Principal, Diconnected / In Recovery). If I try to get their properties, it tells me: "Database Preview is enabled for Database Mirroring, but neither the partner nor witness server instances are available: the database cannot be opened. (Microsoft SQL Server, Error:955)" While this is happening, I can telnet to the witness server from the backup server by name or IP on port 5022, so it doesn't appear to be a network connectivity problem. Pinging by name shows that it is resolving to the inside (.69) IP address, so it g
Server 2008SQL Server 2008 R2SQL Server 2012SQL Server maintenance SQL Blog Have you ever tried to change the network on wich SQL Server Mirroring runs on, from all available to one specific network? I have, and it is not always straight forward. So I created a little log of my efforts, and thought I should share it with you all: Starting setup: Principal, Mirror, Witness listens on ALL Run: ALTER ENDPOINT EndPoint_Mirroring AS TCP (LISTENER_IP = (xxx.xxx.xxx.xxx)) -on all 3 Result: Split brain Not good! So it wasn't that easy after all. Ok , what next? First, fix what is broken. Run: ALTER ENDPOINT EndPoint_Mirroring AS TCP (LISTENER_IP = ALL) Result: Mirroring Works again Ok, lets try this then! Pause mirroring, and Run: ALTER ENDPOINT EndPoint_Mirroring AS TCP (LISTENER_IP = (xxx.xxx.xxx.xxx)) -on Principal Then resume mirroring Result: Trying to view properties on db gives: Database xxxxxx is enabled for Database Mirroring, but the database lacks quorum: the database cannot be opened. Check the partner and witness connections if configured. (Microsoft SQL Server,Error: 955) Mirroring status: Disconnected Oops! Not too good a status either… Back out and try again! Run: ALTER ENDPOINT EndPoint_Mirroring AS TCP (LISTENER_IP = ALL) Result: Properties Works again Mirroring status: Suspended Oops again! What happened here? I am worse off then ever, and out of ideas of how to do this in a simple manner. What to do? Start from the beginning…. Run: Break mirroring. Set up Mirroring using IP adresses instead of DNS names! Run on Mirror: USE MASTER GO ALTER DATABASE [xxxx] SET PARTNER = "TCP://xxx.xxx.xxx.xxx:xxxx' GO Run on Primary: USE MASTER GO ALTER DATABASE [xxxx] SET PARTNER = "TCP://xxx.xxx.xxx.xxx:xxxx' GO USE MASTER GO ALTER DATABASE [xxxx] SET WITNESS =