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SQLIOSim Parser by Jens Suessmeyer & Yours Truly
New! Improved! v.3.3.0 Now Available on CodePlex ! Preamble SQLIOSim Parser shreds the results of SQLIOSim.log.xml in seconds, allowing easier & more accurate interpretation of the output of SQLIOSim. SQLIOSim is a tool written by CSS Engineer Bob Read More...
Posted 27 September 09 10:32 by Jimmy May | 4 Comments   
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Aspiring Geek Speaks This Week Yet Again: Perpetual Technologies (PTI) Back-to-School with Microsoft and Oracle Event
Yesterday I flew to Minneapolis to speak at PASS MN on disk partition alignment . I left for the airport immediately afterward to get home to Indianapolis in order to speak at Perpetual Technologies, Inc. ( PTI ) 2nd Annual Back to School with Microsoft Read More...
Posted 16 September 09 09:47 by Jimmy May | 0 Comments   
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Attachment(s): SQLIOParserWin_0.2.3.0.zip
sys.dm_db_index_operational_stats: Kick Your Assumptions: Part 1
A two-part tale in which your humble correspondent interrogates databases & Very Smart Persons (VSPs), & is forced to kick his ass- umptions regarding a popular DMF. Executive Summary Documentation for the DMF sys.dm_db_index_operational_stats Read More...
Posted 03 August 09 09:17 by Jimmy May | 0 Comments   
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SQL CAT New Whitepaper: Data Compression: Strategy, Capacity Planning and Best Practices by Sanjay Mishra, et al.
Data Compression: Strategy, Capacity Planning and Best Practices Hot off the presses, the SQL CAT team has just published a new whitepaper for which I had the opportunity to provide a technical review. The author is SQL CAT best practices maven Sanjay Read More...
Posted 29 May 09 02:07 by Jimmy May | 1 Comments   
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Wait Stats by Joe Sack
Wait stats rock. As I shared recently with friends, when it comes to SQL Server performance, wait stats are the #1 arrow in my quiver, the first tool out of my toolbox, the Vera of guns (see the Firefly episode Our Mrs. Reynolds to divine that reference). Read More...
Posted 27 April 09 11:15 by Jimmy May | 2 Comments   
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Attachment(s): Joe Sack wait stats.sql
Disk I/O Case Study: Classic Case of SAN Over-Subscription
SAN Over-Subscription There are a variety of challenges related to I/O performance. One common problem is "SAN Over-Subscription", which is characterized by the the following symptoms: High disk latency and Low IOPs & Throughput As MS PFE & fellow Read More...
Posted 15 March 09 09:21 by Jimmy May | 2 Comments   
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Architecture Journal: Green IT in Practice: SQL Server Consolidation in Microsoft IT
I'm a lucky guy. Besides the fact that I'm healthy, alive, & living on the planet earth "in interesting times" as the fortune cookie says, I had the opportunity to contribute to an article which appeared in the Green IT issue of The Architecture Journal: Read More...
Posted 10 March 09 11:12 by Jimmy May | 1 Comments   
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Disk I/O: Microsoft SQL Server on SAN Best Practices from SQL CAT's Mike Ruthruff (& Prem Mehra)
While at the PASS Community Summit in November 2008, I had the pleasure of attending a handful of excellent presentations. One of the best was delivered by Mike Ruthruff (& not just because he shilled for my presentation on disk partition alignment Read More...
Posted 01 March 09 11:44 by Jimmy May | 3 Comments   
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Attachment(s): Mike_Ruthruff_SQLServer_on_SAN_SQLCAT.zip
SSMS Query Results: “Include column headers when copying or saving the results"
In my work with external customers, I collaborate with some excellent DBAs & Architects. But I've noticed many of them are not aware that you can capture column headers from query results to grid in SSMS. When a very bright engineer I work with—not Read More...
Posted 22 February 09 10:40 by Jimmy May | 4 Comments   
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sp_reset_connection Does NOT Reset TRANSACTION ISOLATION LEVEL: Unexpected Behavior By Design
I've long been an advocate of the best practice of explicitly setting the transaction isolation level in my scripts. At my old day job as an enterprise architect I mandated that along with SET NOCOUNT ON , the preamble for all SProcs explicitly must declare Read More...
Posted 02 February 09 12:44 by Jimmy May | 6 Comments   
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SQL Server Schema Best Practices from the SQL Server Customer Advisory Team (SQL CAT)
An authoritative reference on schema usage in SQL Server 2005 is now available. Along with my buddy Joe Sack , it's been my privilege in the last few months to serve as Technical Reviewer on white papers for the SQL Server Customer Advisory Team (SQL Read More...
Posted 10 December 08 12:12 by Jimmy May | 1 Comments   
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Disk Partition Alignment (Sector Alignment) for SQL Server: Part 4: Essentials (Cheat Sheet)
The purpose of this post is to document Disk Partition Alignment Essentials. It is intended for engineers who are already familiar with disk partition alignment yet want a “cheat sheet”. As most of you know, partition alignment is an essential best practice. Read More...
Posted 04 December 08 10:40 by Jimmy May | 11 Comments   
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Attachment(s): Disk Partition Alignment (Sector Alignment) for SQL Server - Part 4 - Essentials (Cheat Sheet) -- Jimmy May.zip
Case Study: Part 2: CXPACKET Wait Stats & 'max degree of parallelism' Option: Suppressing Query Parallelism Eliminated CXPACKET Waits & Liberated 30% of CPU
Introduction This is the second of a four-part series: Introduction to Query Parallelism Parallelism Suppression: Analysis, Remediation, & Results (this post) Parallel Query Identification & Remediation Summary Executive Summary In my first post Read More...
Posted 02 December 08 11:49 by Jimmy May | 3 Comments   
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Case Study: Part 1: CXPACKET Wait Stats & 'max degree of parallelism' Option: Introduction to Using Wait Stats to Identify & Remediate Query Parallelism Bottlenecks
This is the first of a four-part series: Introduction to Query Parallelism (this post) Flipping the Bit Expensive Query Identification & Remediation Summary Query Parallelism The SQL Server configuration option max degree of parallelism determines Read More...
Posted 28 November 08 01:29 by Jimmy May | 3 Comments   
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Disk Partition Alignment (Sector Alignment) for SQL Server: Part 3: PASS 2008
I've spoken publicly several times this year to crowds large-&-small: TechReady 6 (an internal Microsoft conference) Indy Tech Fest ITT Commencement Last week was my first external international conference, the Professional Association for SQL Server Read More...
Posted 25 November 08 12:24 by Jimmy May | 5 Comments   
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