Clik here to view.
System Center Advisor is now free
It has been well over a year when I wrote a series of blog posts about a product called System Center Advisor. You can read these posts at this...
View ArticleClik here to view.
PowerPivot Table Import Wizard cannot find provider
The data source provider list in PowerPivot can often be a source of confusion for users since they equate the fact that a provider appears in the list as the provider being installed and available....
View ArticleClik here to view.
The Case of Anti-Virus filter drive interference with File Stream Restore
"Denzil and I were working on this issue for a customer and Denzil has been gracious enough to write-up a blog for all of us." – Bob DorrFrom Denzil:I recently worked with a customer on a Database...
View ArticleClik here to view.
SQLIOSim Checksum Validations
I had a very specific question asked of me related to the SQLIOSIM.exe, checksum validation logic. It is pretty simple logic (on purpose) but effective so here are the basics.The key is that there are...
View ArticleClik here to view.
How It Works: Always On–When Is My Secondary Failover Ready?
I keep running into the question: “When will my secondary allow automatic failover?” Based on the question I did some extended research and I will try to summarize in is blog post. I don’t want to...
View ArticleClik here to view.
AlwaysON - HADRON Learning Series: HADR_SYNC_COMMIT vs WRITELOG wait
The distinction between these two wait types is subtle but very helpful in tuning your Always On environment.The committing of a transaction means the log block must be written locally as well as...
View ArticleClik here to view.
AlwaysON - HADRON Learning Series: lock_redo_blocked/redo worker Blocked on...
The topic I received most in my inbox this week was redo blocked on a secondary while attempting to acquire SCH-M (schema modify) lock.First of all, this is expected behavior and you can monitor for...
View ArticleClik here to view.
Using PowerShell to discover Reporting Services 2012 in SharePoint
I was recently going through an exercise of documenting how to discover certain aspects of Reporting Services for some Kerberos work. RS 2012 in SharePoint is a totally different game though. The...
View ArticleClik here to view.
SQL Server–Storage Spaces/VHDx and 4K Sector Size
This blog outlines a new twist to my previous blog outlining issues with 4K sector sizes.SQL Server - New Drives Use 4K Sector Size:...
View ArticleClik here to view.
SharePoint Adventures : When connectivity is not connectivity
I’m always amazed that issues usually come in batches. I was looped into a few cases that had the following symptoms. They were running SharePoint 2010 and Reporting Services 2012 SP1. When they...
View ArticleClik here to view.
SharePoint Adventures : Claims, Named Pipes and Kerberos
I ran into a new Kerberos Scenario that I hadn’t hit before when I was working on the cases related to this blog post. It’s rare that I actually see a case related to the Named Pipes protocol. When I...
View ArticleClik here to view.
Why won't my PowerPivot for Excel 2010 workbook upgrade to Excel 2013?
Recently we've seen an issue where some Excel 2010 workbooks containing PowerPivot models encounter errors when attempting to upgrade to Excel 2013.When opening a PowerPivot model that was created in...
View ArticleClik here to view.
How It Works: The I/O Path: SQL Server Running in Windows Azure Virtual...
Note: This blog is based on behavior as of June 2013. At Microsoft we continue to evolve and enhance our products so the behavior may change over time.The I/O path for SQL Server, running on Windows...
View ArticleClik here to view.
Getting a SharePoint List Data Source to work with Reporting Services Native...
A case came up where the user was trying to use Report Builder in a Reporting Services instance that was not integrated with SharePoint. It was in Native Mode configuration. They indicated that they...
View ArticleClik here to view.
A performance issue involving CLR garbage collection and SQL CPU affinity...
We have been troubleshooting a customer’s case and uncovered a GC behavior with SQL Server CPU affinity that is worth sharing here in a blog.ProblemCustomer reported that they had two instances of SQL...
View ArticleClik here to view.
High CPU Troubleshooting with DMV Queries
High CPU Troubleshooting with DMV Queries Scenario:Recently, a customer called Microsoft Support with a critical performance issue that I worked on. Their SQL Server instance had 100% CPU utilization...
View ArticleClik here to view.
Under rare conditions, using IN clause can cause unexpected SQL behavior
I want to make you aware of a latest SQL Server 2008 hotfix documented in http://support.microsoft.com/kb/2791745. Using large number of constants in IN clause can result in SQL Server termination...
View ArticleClik here to view.
Breaking Down 18065
We have had two blog posts on this blog regarding the 18056 error. Two from Bob Dorr (and part 2) and another from Tejas Shah. However, we still see a lot of questions about this error message. This...
View ArticleClik here to view.
RS: Database Engine does not meet edition requirements
I've ran across the following error a few times and thought I would post this out there for people to understand what is happening.ERROR: Throwing...
View ArticleClik here to view.
Unable to register .NET framework assembly not in the supported list
SQL Server has supported CLR usage since version 2005. But support of .NET framework assemblies within SQL Server is limited per our support policy in KB http://support.microsoft.com/kb/922672. Some...
View Article