How to Upgrade Memory and Storage on the Lenovo Ideapad Yoga 13

My awesome wife and terrific in-laws got me one of those nifty new Yoga 13 IdeaPad's by Lenovo (Lenovo Yoga 13 IdeaPad Ultrabook 13.3" Touch-Screen Convertible Laptop) for my birthday/Christmas (one of the benefits of having your birthday 3 days before Christmas is "bigger" gifts). I'll be using the Yoga at home and at work as we do some BYOD (Bring Your Own Desktop) against the VMware View environment at Clearpath Solutions Group.  The form factor of the Yoga is great - lightweight to be used as a tablet, but big enough to be a full time laptop.  I also dig Windows 8 - I use the traditional … [Read more...]

The Skinny on ESXTOP

A reader named Mark contacted me today and asked if there was a way to reduce the size of the batch output from an ESXTOP run.  And he asks for good reason: Depending on the number of VM's on your host, the delay between ESXTOP samplings and the number of samples you collect, using the All Stats option (-a) can yield a massive file in a short period of time.  If written to a partition on your ESX Service Console you run the risk of filling the partition, and forget about actually being able to analyze the data in PERFMON or Excel.  For example, on an ESX host running ~15 VM's I produced 100MB … [Read more...]

RAMDisk Usage in a vSphere Environment

I had some folks from our .NET development team come to me with a problem today - their ASP.NET code was taking forever to recompile after updates to the code base. But these guys are cool - they came with a proposed solution (most people who grace my office door are simply dropping off problems). Their solution? A RAMDisk mounted in a VMware Windows guest.  I give them credit for a novel approach, but I could see some issues: What would happen if the balloon driver kicked in and demanded the memory the RAMDisk was running on? A reservation would get around the balloon driver issue, but … [Read more...]

Balloon Driver Problems with SQL

I have been meaning to write this up for a while; Scott Drummonds' 'Love Your Balloon Driver' post today at his Virtual Performance blog gave me a nice reminder.  I actually caught a sneak peak at the graphs with an explanation from Scott at his instructor-led lab at VMworld 2009.  Scott calls out that the only workload they discovered suffers from balloon driver activity is Java.  The reason for Java's problems with balloon driver activity is that Java itself runs in a VM and so the guest OS cannot properly determine which pages should be swapped out when the balloon driver calls for … [Read more...]