Clustering SQL Server on Virtual Machines (Round 2)
Recently there was lengthy discussion on the #sqlhelp hash tag on Twitter about clustering SQL Server on VMs and whether or not that was a good idea or not. Two years ago I first blogged about this...
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CPU Ready Time in VMware and How to Interpret its Real Meaning
In the last month I have had to explain how to interpret CPU Ready Time information for SQL Server VMs running on VMware to a number of people. The first time was on Twitter, and the topic is really...
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Read-Only Access to Virtual Center for DBAs
Most environments using VMware for server virtualization are going to also have Virtual Center Server installed for administration and monitoring. As a DBA, I always had access to Virtual Center with...
View ArticleQuerying the VMware vCenter Database (VCDB) for Performance and Configuration...
In my previous post I showed how DBAs can be provided with read-only access to Virtual Center for monitoring VM performance in the data-center One thing that many administrators don’t realize or...
View ArticleThe Accidental DBA (Day 12 of 30): Backups: VM Snapshots
This month the SQLskills team is presenting a series of blog posts aimed at helping Accidental/Junior DBAs ‘keep the SQL Server lights on’. It’s a little taster to let you know what we cover in our...
View ArticleThe Accidental DBA (Day 24 of 30): Virtualization High Availability
This month the SQLskills team is presenting a series of blog posts aimed at helping Accidental/Junior DBAs ‘keep the SQL Server lights on’. It’s a little taster to let you know what we cover in our...
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Hyper-V Equivalent to VMware CPU Ready Time
I’ve blogged about CPU Ready Time in VMware in the past, and one of the questions I am often asked is whether there is an equivalent counter in Hyper-V? The definition of CPU Ready time by VMware is:...
View ArticleNew Article: VMware CPU Hot Plug vNUMA Effects on SQL Server
My latest article on SQLPerformance.com was published today and highlights the potential for performance problems while using the hot-add vCPU feature in ESX 5+ with wide VMs for SQL Server....
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Using Storage Spaces Direct S2D on VMware Workstation
While working through my new demos for SQL Server 2016 on Windows Server 2016 I had to rebuild my hyper-converged SQL Failover Cluster environment using local storage and Storage Spaces Direct for the...
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CPU Ready Impact on SOS_SCHEDULER_YIELD
At the end of May 2017, Paul and I had a discussion about SOS_SCHEDULER_YIELD waits and whether or not they could become skewed in SQL Server as a result of hypervisor scheduling issues for a VM...
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