SQL Server with Mr. Denny:

VMware


August 23, 2010  11:00 AM

Make sure you restart vCenter after upgrading to Update 2



Posted by: Denny Cherry
vCenter, VMware

So I recently upgraded by VMware vCenter server from 4.0 U1 to 4.0 U2 and ran across a little problem. After I upgraded I couldn't attach any hosts to the vCenter server.  It kept telling me that vCenter couldn't talk to the host even though it could. After digging into the logs we saw that...

May 13, 2010  4:39 PM

EMC World Day 3



Posted by: Denny Cherry
Celerra, EMC World, EMC World 2010, Emulex, Exchange 2010, FAST, VMware, Xsigo

Yesterday was Day 3 of EMC World, and there were more great sessions packed full of technical information.  Yesterday was also the last day of the exhibit hall being open so it was Apple iPad giveaway day as well, sadly I didn't win one. The first session that I want to recap here was the SAN...


May 12, 2010  8:16 PM

EMC World Day 2 (2010)



Posted by: Denny Cherry
Bob Ward, Bruce Zimmerman, CLARiiON, EMC World, EMC World 2010, VMware

So yesterday was Day 2 of EMC World, and my body is really starting to feel it.  All the sessions today were top notch sessions. The first session yesterday was by Bruce Zimmerman.  For those of you in the SQL Server community that are reading this Bruce is to the EMC Storage community as Bob...


March 22, 2010  8:13 PM

Giving your Virtual SQL Server direct access to your Storage Array



Posted by: Denny Cherry
Raw Device Mapping, SQL Server, VMware

The biggest performance issue when virtualizing your SQL Server is storage.  One way to fix this is to present storage directly to the virtual machine instead of placing the virtual machines storage within a virtual disk.  In VMware this is done by using a Raw Device Mapping. In a nut shell...


March 18, 2010  11:00 AM

Hyper-V v2 has come a long way, but so has VMware



Posted by: Denny Cherry
Hyper-V, VMware

The timing on this post might seam a little strange, but I've been meaning to write this for a while and I finely got a chance to do it. Back when Hyper-V 1.0 was released it wasn't all that great of a product.  It showed some promise, but it really wasn't there.  I had all sorts of people...


October 19, 2009  11:00 AM

Hey sysadmins, quit trying to virtualize everything!



Posted by: Denny Cherry
SQL, Virtualization, VMware

Please forward this to the systems admin in your life that wants to take your big SQL Server, and cram it into a Virtual Machine against your wishes. So you've got your kick ass virtualization project moving along nicely, but you've hit a snag.  The DBAs are fighting back saying that they don't...


September 14, 2009  11:00 AM

My experiences upgrading ESX 3.5 to vSphere 4.0



Posted by: Denny Cherry
VMware

A couple of weeks back I begun the process of upgrading our VMware ESX 3.5 systems to vSphere 4.0.  I've got to tell you, that has to be the easiest system upgrade process in history.


June 25, 2009  9:00 AM

Setting VMware memory settings to improve SQL Server Performance



Posted by: Denny Cherry
SQL, VMware

There is a VMware setting which you can set which should give you a small but noticeable performance improvement in SQL Server performance when that SQL Server is running within a VMware Virtual Machine.


June 4, 2009  11:00 AM

Use caution when using an image to setup servers which will be clustered.



Posted by: Denny Cherry
Clustering, Lesson Learned, VMware, Windows 2008

A lesson that I learned while setting up our new data center for work, is to be careful when setting up your clustered servers. Most of our servers are VMs, including a Windows 2008 Cluster (yeah I know not supported, I'm a rebel damn it and I want a Windows 2008 cluster installed under VMware...


May 25, 2009  11:00 AM

VMware and SQL and Lock Pages in Memory



Posted by: Denny Cherry
Lock Pages, SQL, VMware

With the recent release of the ability for the Lock Pages in Memory setting to be used on SQL Server 2005 and 2008 Standard Edition I see more and more people shooting them selves in the foot with this setting when running under VMware.  I see this as becoming more of an issue now that this switch...


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