Last month, Oracle released Oracle VM Server for SPARC release 3.2 which includes numerous enhancements. One of these is improvement for virtual disk multipathing, which provides redundant paths to virtual disk so that disk access continues even if a path or service domain fails.
Multipath groups are arranged in an active/standby pair of connections to the same physical media. In case of a path or service domain failure, I/O activity continues on a surviving path.
When Docker first rocketed into the nerdosphere in 2013, some wondered how we at Joyent felt about its popularity. Having run OS containers in multi-tenant production for nearly a decade (and being one of the most vocal proponents of OS-based virtualization), did we somehow resent the relatively younger Docker?
Well time to wake up this blog, will be posting stuff again, beware.
I gave a presentation today on the methods and reasons of blogging for Delphix Engineering.
One of my points was that presentations make for simple blog posts–practice what you preach!
While doing this work, I noticed a very surprising thing. When a host has both IPv6 and IPv4 addresses associated with a name (such as localhost), Go prefers to resolve to the IPv4 version of the name, unless one has asked specifically for v6 names.
Those of you who follow me may have heard about this project I've created called mangos.
There is a very nice write up of mangos by Tyler Treat, which might help explain some things.