Query to show the members of the BUILTIN\Administrators group

When checking out who has what permissions to a SQL Server or database you often see that BUILTIN\Administrators has sysadmins. To quickly find out the membership of the group run this bit of code:

EXEC xp_logininfo 'BUILTIN\Administrators' ,'members'

This piece of code is ideal for a Snippet.

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Fun and games with the Management Data Warehouse (MDW and Data Collectors)

The SQL Server Management Data Warehouse (when you first come across it) seems to promise so much if the verbiage from Microsoft and some other websites is to to believed. But when you install it you may find that it is not as useful as it could be. This is a shame but we are currently only on v2 of the product with SQL 2012 so one hopes it will improve in subsequent versions. However, it probably is worth playing with if you have never used it before - at least you can show your boss some reports on general server health when he asks for it and you have nothing else in place. There is one big problem with it though if you decide that you don't want to use it any more, uninstalling it is not supported! Mad, I know. But as usual some very helpful people in the community have worked out, what seems to me, a pretty safe way of doing it. I had a problem with my MDW. The data collector jobs were causing a lot of deadlocking on some production servers and impacting performance. I...

How to configure the SSAS service to use a Domain Account

NB Updating SPNs in AD is not for the faint hearted plus I got inconsistent results from different servers. Do so at your own risk! If you need the SSAS account on a SQL Server to use a domain account rather than the local “virtual” account “NT Service\MSSQLServerOLAPService”. You may think you just give the account login permissions to the server, perhaps give it sysadmin SQL permissions too. However, if you try and connect to SSAS remotely you may get this error: Authentication failed. (Microsoft.AnalysisService.AdomdClient) The target principal name is incorrect (Microsoft.AnalysisService.AdomdClient) From Microsoft: “A Service Principle Name (SPN) uniquely identifies a service instance in an Active Directory domain when Kerberos is used to mutually authenticate client and service identities. An SPN is associated with the logon account under which the service instance runs. For client applications connecting to Analysis Services via Kerberos authentic...

SAN performance testing using SQLIO

Introduction This document describes how to use Microsoft’s SQLIO to test disk/SAN performance. It is biased towards SQL Server – which uses primarily 64KB and 8KB data pages so I am running the tests using those cluster sizes, however, other sizes can be specified. Download SQLIO from https://www.microsoft.com/en-gb/download/details.aspx?id=20163 SQLIO is a command line tool with no GUI so you need to open a command prompt at C:\Program Files (x86)\SQLIO after you have installed it. Configuration First of all edit param.txt so that you create the test file we will be using. The file needs to be bigger than the combined RAID and on-board disk caches. In this case we are using a 50GB file. The “ 2” refers to the number of threads to use when testing, you don’t need to change this now. The “ 0x0” value indicates that all CPUs should be used, which you probably don’t want to change either, “ #” is a comment. The o...

SQL Server Snippets | Paul Hewson

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