What does xFS stand for?
Whatever you want. In 1993, when we were first publishing a paper about our
ideas, we needed a name. The "FS" was obvious, but what letter to lead
with? SFS (Scalable File System?), WFS (Wide-Area File System?), TFS
(Tertiary File System?), MFS (Migrating File System?), FFS (Fast File
System, whoops, already taken), ...
While we debated, the drafts said
xFS. Anyhow, the "x" stuck; it's a variable, and you
can subsitute any value you like when evaluating it.
What about that logo?
Well, we needed a logo, and Randy drew up some abstract shapes, and we
chose this one. I think of it as a stylized "x" (as in xFS). Randy
says that if you squint right, the three branches can be read as a
(very) stylized x, F, and S (use your imagination.) If you want
something to tell your grandmother, say that the three bars represent
"scalability", "reliability", and "performance" -- the three pillars of
xFS (say this in a solemn, resonating voice.)
We've talked about
changing the logo (perhaps a picture of a server with a ghostbusters
line through it), but Drew hates the current logo, so it's more fun
just to keep it.
Drew calls the logo "the dancing Wu Li masters," which is as good an
explanation as any.