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    Copyright © Nancy Hidy Wilson, 2010-2013. Unauthorized use and/or duplication of this material without express and written permission from this blog’s author and/or owner is strictly prohibited. Excerpts and links may be used, provided that full and clear credit is given to Nancy Hidy Wilson and nancyhidywilson.wordpress.com with appropriate and specific direction to the original content.

SQLSaturday #447 Dallas – I am Speaking

SQLSat_logoThe first SQLSaturday I ever attended was #35 in Dallas and the North Texas SQL Server User Group (NTSSUG) set the bar high as host. That was several years ago and scheduling conflicts have prevented me from making the drive up I-45 from Houston to attend another SQLSaturday there. However, this year, I’m honored to be presenting at SQLSaturday #447 Dallas on October 3, 2015. My topic is “Managing SQL Server in the Enterprise with TLAs”.  What are TLAs, you ask? Why Three-Letter-Acronyms, of course! The TLAs that I will be discussing which you as a SQL Server DBA should be utilizing are CMS, PBM, and EPM. Come to my session in Room 100 at 8:30am (updated 9/30 for schedule change) and find out how using these features will improve your productivity and help you ensure standards are being followed in your environment.

If you are a data professional within driving distance of the DFW Metroplex, you should consider attending this free day of learning at the University of Texas at Arlington (UTA) hosted by the North Texas SQL Server User Group.

Check out the entire schedule, including low-priced Pre-con sessions on Friday, and register today to take advantage of this free training!

If you can’t attend this event, then check here for all the currently scheduled SQLSaturdays in the US and around the world! There is likely one occurring near you soon!

TSQL2sday #70 – Strategies for Managing an Enterprise

tsql2sday

Jen McCown (Twitter) of Midnight DBA is the guest host for this month’s SQL blogger event known as T-SQL Tuesday (#TSQL2sday) which was started almost 6 years ago by Adam Machanic. This month, Jen has assigned us the topic: Strategies for Managing an Enterprise. Jen will be doing a wrap-up summary of all blog posts submitted on this topic per the rules and I’m looking forward to everyone’s input on this subject.

I’ve been presenting a session for the past several years at SQLSaturday events entitled “Managing SQL Server in the Enterprise with TLAs”. The TLAs (three-letter acronyms) are CMS (Central Management Server), PBM (Policy Based Management) and EPM (Enterprise Policy Management Framework). I’ll be presenting this session at SQLSaturday #447 Dallas on Oct. 3rd, 2015, so you can come learn the details of these features then. But, per the assigned topic for this post, let’s focus on the “strategies” driving the usage of these features.

For me, one of the main goals in managing the enterprise is finding ways to reduce the effort in managing that landscape –whether two instances of SQL Server or two thousand instances. A strategy for getting there is organization. The CMS enables you to define groups to which you register your SQL Server instances and then you can perform tasks against those groups. Why perform a task per instance when you can do it for multiple instances at one time? The CMS is actually defined in tables in the msdb database of the designated instance. I would recommend having a dedicated “central management server” instance which you will use for CMS, PBM, EPM, and other administrative tasks.

With CMS, you can create many groups and register instances in multiple groups based on the tasks that you may want to perform against those groups. For example, you can create groups to organize by SQL Server version, by Production\UA\QA\Dev\Test, by Application, by location, and be sure to have one group with all your SQL Server instances registered to it. SQL Server Management Studio (SSMS) enables you to run “multi-instance” queries using a CMS group. That is, you execute the contents of the Query window against every server instance in the specified group and the results are returned to the SSMS console.

A second strategy in managing the enterprise is standardization. Policy Based Management enables you to define expected settings (e.g. conditions) and verify whether an instance of SQL Server meets those conditions. Examples of policies could be checking that the sa login is disabled or ensuring the AUTO_SHRINK option is off on all databases. My recommendation is to configure the policies on the same instance as your CMS groups (e.g. your dedicated central management server) so that you only have to manage one set of policies. Policy definitions are also stored in the msdb database. You will also want to export the policies to a central file server. Policies are exported as XML formatted files. When evaluating the policies on a specific instance, you may use either the central management SQL Server instance or the file server where they are stored as the source. SSMS also allows you to manually evaluate policies against a CMS group – returning all the results to your SSMS console.

The third strategy is automation. If you have a CMDB (Configuration Management Database), then you can utilize it as the source for populating your CMS groups by scripting the entire process to keep your CMS groups current with the CMDB contents and setting this up as a SQLAgent job to schedule as needed. Policies can be assigned to categories. The EPM Framework provides a mechanism (a PowerShell script) to automate the PBM evaluations by category against a specific CMS group and store the results for reporting. EPM requires a database repository to store the results, so again I recommend creating this database on a dedicated central management server. Once you’ve been through the exercise of setting up your CMS, establishing policies, and configuring the EPM Framework for your environment, you’ll see additional opportunities to utilize the CMS for automating other tasks.

So, start leveraging the CMS, PBM, and EPM features today to reduce your efforts by organizing your instances, increasing standardization, and automating tasks in your enterprise!

SQLSaturday #423 Baton Rouge – I am Speaking

I’m honored to be presenting again at SQLSaturday Baton Rouge on August 1, 2015. My topic is “Managing SQL Server in the Enterprise with TLAs”. What are TLAs, you ask? Why Three-Letter-Acronyms, of course! The TLAs which I will be discussing that you should be utilizing are CMS, PBM, and EPM. Come to my session in Room 1220 at 12:15pm and find out how using these features will improve your productivity!

If you are involved in almost any kind of IT work within driving distance of Baton Rouge, you should consider attending this free day of learning. Although using the SQLSaturday branding, there are more topics to be covered than just SQL Server. In addition to the traditional SQL Server AppDev, DBA, and BI tracks, there are tracks for .NET developers, SharePoint, Web/Mobile Development, Windows Server & Virtualization, Career Development, IT Managers, and more!

Check out the entire schedule, including low-priced Pre-con sessions on Friday, and register today to join more than 600 IT workers taking advantage of this free training!

If you can’t attend this event, then check here for all the currently scheduled SQLSaturdays in the US and around the world! There is likely one occurring near you soon!

SQLSaturday #150 – Baton Rouge: Presentations Uploaded

My presentation slide decks and demo scripts from SQLSaturday #150 have been uploaded.

Thanks to the planning team for selecting my sessions and thanks to everyone who attended my sessions – I enjoyed the opportunity to share my passion.   

SQLSaturday #150 – Baton Rouge – Signup Now!

There’s an awesome FREE technical training event coming to Baton Rouge on August 4, 2012. That’s right; SQLSaturday and Tech Day 2012 will be held at LSU’s new College of Business facility.  This is the fourth year that the Baton Rouge technical community has held this event and they expect around 400 people – if you live anywhere close by, then you should be there!  William Assaf (blog | twitter) even got some local TV exposure for the event this year.  

This event is bigger than your normal SQLSaturday. In addition to tracks for the SQL Server professional, there are also tracks for .NET developers, Windows Phone developers, SharePoint, and general professional development. Check out the full schedule here, and then sign up here.

Why am I plugging this event? Well, for one thing the Baton Rouge SQL Server community has always come west across the state line to support our SQLSaturdays in Houston. Secondly, I’ll be speaking at their event this year on “Managing SQL Server in the Enteprise with TLAs”.  TLA is “Three-Letter Acronym” for those unsure. We have lots of those in techno-speak. I’ll be covering CMS, PBM, EPM, MDW, and more…. If you work with SQL Server and don’t know what those are or how they can help you, then register today for SQLSaturday #150 and come to my session at 8:20am in Room 1700! 

Addendum: I’ll now also be presenting a second session “SQL Server 2012 Database Engine – Why Upgrade?” in the 2:45pm slot in Room 1700.

 

If you can’t attend this event, then check here for all the currently scheduled SQLSaturdays in the US and around the world! 

 

TSQL2sday #026 – Second Chances

What is TSQL2sday? Back in late 2009, Adam Machanic (blog | twitter) had this brilliant idea for a monthly SQL Server blogger event (the origin of TSQL2sday).  This month’s event is hosted by David Howard (blog | twitter) and this month Dave is letting us chose our topic from any of the prior 25 topics! As my first foray into this event wasn’t until the 14th occurrence, I really like this idea and selected “TSQL2sday #007 Summertime in the SQL” as my second chance topic. Okay, so it is January, but it was 70+ degrees in Houston today, so quite balmy. However, that wasn’t why I chose this topic; I really chose it because this topic was about what is your favorite “hot” feature in SQL Server 2008 or R2. I thought about “updating” the topic to SQL Server 2012, but I’m really not sure yet which new “hot” feature of SQL Server 2012 will turn out to be my favorite – and after 3 years, I definitely know which SQL Server 2008 set of features is my personal favorite – CMS and PBM.

The Central Management Server (CMS) and Policy-Based Management (PBM) features have made the overall management of large numbers of SQL Server instances, well, manageable.

The CMS enables us to organize instances into multiple different classifications based on version, location, etc. We rebuild the CMS on a regular schedule based on the data in our asset management system. This ensures that all DBAs have access to a CMS with all known instances. If you are not familiar with the CMS – it does not grant any access to the instances themselves and connectivity using it only works with Windows Authentication, so there are no security loopholes here.

We then use these CMS groups as input into our various meta-data and compliance collection processes. Approximately 90% of our technical baseline compliance evaluation is accomplished via policies in PBM. We’ve incorporated all of this using the EPM (Enterprise Policy Management) Framework available on Codeplex with a few tweaks of our own to work better in our environment.

If you haven’t yet checked out the CMS and PBM features, I encourage you to do so today. I have two previous blog entries relating to this topic – “Managing the Enterprise with CMS” and “Taking Advantage of the CMS to Collect Configuration Data”.  I’d also highly recommend that you watch the SQL Server MCM Readiness Videos on the Multi-Server Management and PBM topics.

And, it is good to know that by the time this entry is posted – we should be back to our normal 50 degree January weather in Houston!  

Managing the Enterprise with CMS

In Microsoft SQL Server 2008, a feature called Central Management Server (CMS) was added to enable the execution of T-SQL commands and Policy Based Management policy evaluation on multiple servers at one time.  As someone working in a large enterprise environment, I’m constantly looking for features which enable better, more efficient ways to manage hundreds of servers within a team support environment.  While the minimum version requirement to perform as a CMS is SQL 2008, you can register lower level version instances.  Now we are talking – because how frustrating is it to have a new feature available, but virtually useless until you have a majority of systems on the new version.  So, now you need only one SQL Server 2008 instance and you can start taking advantage of this new feature to manage the current SQL 2000 and SQL 2005 instances already in place.

However, if you read BOL (Books Online), then you’ll see that the instructions for adding groups and instances are very manual and done via the SQL 2008 SSMS (SQL Server Management Studio).  Did I mention that we have hundreds of instances to manage?  And, did you catch the reference to “groups”?  It doesn’t say explicitly in BOL (at least that I’ve found), but an instance can belong to more than one group.  This opens up a whole plethora of possibilities for using the CMS.  But first we must determine how to automatically create the groups and populate them and maintain them.

A little further investigation reveals that there are now a couple of tables in the msdb database named dbo.sysmanagement_shared_server_groups and dbo.sysmanagement_shared_registered_servers which are designed to contain the groups and registered servers for the CMS.  So, now I can bypass the manual registration in SSMS and write a PowerShell script (what else?) to create the desired groups and populate them from our central asset database based on whatever criteria I want the group based on.  Then I can schedule that script as a job to run in SQLAgent to ensure the CMS groups are refreshed and relatively in sync with the asset database (considered “the truth”).

The msdb database in SQL 2008 also contains two new roles: ServerGroupAdministratorRole and ServerGroupReaderRole.  If you want someone other than the Windows Authenticated logins already in the sysadmin role on the CMS instance to manage your CMS, then you can assign their Windows login to the ServerGroupAdministratorRole.  Similarly, if you want others to use the registered groups and servers in this CMS, then their Windows login must be assigned to the ServerGroupReaderRole on the CMS instance.

BOL (2008) states that the CMS Server cannot be a member of a group that it maintains, I haven’t figured out why yet. The work around is to register the CMS server name as servername\instancename, but register it as servername\instancename,port in its CMS Group, this seems to work just fine, but be aware of this caveat.

SQL Server 2008 R2 did not provide any changes to the CMS feature, so you should be able to use either SQL 2008 or SQL 2008 R2 as your CMS.  I’ve had no problems using SSMS 2008 with a CMS based in SQL 2008 R2 or using SSMS 2008 R2 with a CMS based in SQL 2008.

The first key to using CMS is to determine what groups make the most sense for your organization. Depending upon what data is available in your asset database, the choices are almost limitless.  For instance, you might chose groups based on region alone or based on region plus version for another combination.  Thus, you might have groups which look similar to AM, AP, EU, AM_2000, AM_2005, AM_2008, SQL2000, SQL2005, SQL2008, etc.  You could also have groups based on classifications such as DEV, QA, and PROD; or even based on application landscapes such as Biztalk and Sharepoint.

Some things to consider when setting up your CMS include connectivity and security.  The CMS is not magic – although it might seem like it the first time you perform a multiple-instance query!  The CMS does not store authentication credentials, only the server connection info.  Thus, when using SSMS to execute T-SQL or policies against a group, Windows Authentication is used.  The authenticated account will have no different privileges than if you had connected to each instance in an individual query window using Windows Authentication.  You’ll actually see in the status bar of the Query Window in SSMS how many instances in the group were successfully connected (e.g. 9 of 10 or 10 of 10).  Therefore, even if you connect successfully to every instance in the group, if your login has differing privileges on the instances, then your results may differ as well depending upon the privileges required to execute the query submitted.  So far, this works exactly like Registered Servers in your individual SSMS, however, the benefit is the ability to access the CMS groups and registered servers from anywhere in your organization, by anyone (with the proper access of course!).  No longer do you have to keep registering your servers – and your whole team now has access to the same groups and registered servers.

On the connectivity side, if a CMS group contains hundreds of instances, especially if regionally dispersed, it may take a while to establish the connection to all of the instances, so be patient – or consider further dividing your groups into smaller subsets.  If an instance is offline or there is a connection timeout or you do not have permissions, then an error\warning will be reported for that instance when you try to execute a query in SSMS against the group; results will still be returned for all other instances.

Also, be very, very, very careful when executing anything other than a SELECT statement – always check the status bar in the Query Editor window to validate the number or instances to which you are connected, which group you are executing against, who you are executing as and to which database you are connected by default.

So for a very simple example of what it can help you do, consider that you have version stored in your asset database and use that to build version groups, but you aren’t 100% sure that these are correct.  In SSMS, you can right-click the version group in the Registered Servers in SSMS and select “Run Query”.  Then, you can execute the query “Select @@version” or “Select SERVERPROPERTY(‘ProductVersion’)”.  You can quickly scan the results for any instances which do not return the expected version.

Hopefully, this provides a good introduction to CMS and has started you thinking about how you can use it outside of SSMS…which will be the subject of my next post!