Failed to bring your Mission Critical SQL Server Always On Failover Cluster Online after Patching!?

First of all, whenever issues arise from patching your SQL Server production environment, please keep calm 🙂 In a scenario, that you successfully patched SQL Server (Service Pack/ CU) but the SQL Server Resource Group can’t be brought online, I recommend to start your PowerShell console and generate your Cluster Log (simply by Get-ClusterLog), this will

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Ninja Troubleshooting- User Interface freezing during SQL Server database restore

Hello world 🙂 To sum up, i was working with one of my customers regarding the UI (User Interface) freezing while restoring (Symantec NetBackup) a database into SQL Server 2012, leading to a unresponsive behavior from the server. Scenario (VMware guest – WS2012R2): Started with gathering performance counters to jump into the analysis and even though

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Disable Lock Escalation in SQL SERVER 2008 or Higher

For who don’t know, it is know possible to remove Lock Escalation, and this is something that be “granularly” done to a table on SQL SERVER 2008 or Higher without the need to use Trace Flags. Sample sintax ALTER TABLE table_name_goes_gere SET (LOCK_ESCALATION=DISABLE) . — PT — Para quem não sabe, já é possível remover

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Negative spid in SQL SERVER.

When you have a negative spid ( ex: -2) in SQL SERVER, it is related with Microsoft Distributed Transaction Coordinator (MSDTC). You can do it from 2 different ways: Outside SQL SERVER, in component services > DTC > Transactions > rollback the transaction. OR select distinct req_transactionUOW from syslockinfo , ignore the 000000’s kill ‘GUID’ . ( ghost/orphaned transaction

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MICROSOFT SQL SERVER PERFORMANCE TUNNING

I’m writing this article to help everyone who whats “more juice” from a MS SQL SERVER INFRASTRUCTURE . Instead of writing lots of articles i will update this post every week. I will mix lots of concepts in this post, ranging from Physical Infrastructure/ Operating System/ SQL SERVER PARAMETERS / T-SQL . I will write a

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