I recently upgraded an ESXi 4.1 Update 1 cluster to ESXi 5.0 Update 1 — but have not upgraded the tools yet. One of the Windows admins I work with mentioned that he noticed a development guest needed a tools upgrade, and since the server needed a reboot anyway, he…
I’ve recently been working with a few new ESXi hosts. These systems have a pair of solid state disks that I planned to use for host cache. However, ESXi 5.0 did not detect these disks as an SSD type. I found a couple articles describing how to trick ESXi into…
I’ve recently been digging into Cisco’s Unified Computing System (UCS). I wanted a report showing which ESXi host was in each chassis. I don’t have a lot of blades (yet) so making this list by hand wouldn’t have been a lot of work. However, I had heard about the UCS…
I’ve recently posted several entries on MAC address conflicts within vCenter: Multiple vCenters and MAC address conflicts Virtual Machines with Duplicate MAC addresses If you look at the first post (and VMware KB 1024025) you’ll notice that vCenter uses a random instance ID to come up with the automatically generated…
I was recently asked if it would be possible for two virtual machines to be automatically assigned the same MAC addresses. Knowing that vCenter handles these assignments and ensures uniqueness, I figured it wouldn’t be possible…but it got me to thinking. Since I have multiple vCenters, what would prevent each…