While surfing the Reddits today I came across this image:
Most likely a failing USB stick boot device. Why do so many IT deployments fall into this trap of making their ultra-expensive highly-available virtualization stacks fall over when a crappy $10 USB stick or SD card dies?
Carve up a tiny partition on your local storage. Carve out a tiny LUN on your SAN for diskless FC/FCoE nodes. Modern servers can usually boot from iSCSI using their onboard NICs. And there’s PXE, tho that can leave you in a really bad place if the vCenter and Auto Deploy servers become unavailable.
The underlying storage doesn’t need to be highly performant, it just needs to be more reliable than a shitty USB/SD device.
I have never and will never deploy VMware on a USB stick. Even my home lab boots from my FC SAN.