Code review comment for lp:~rvb/gwacl/random-initializers

> Well, we can always reduce that later if we feel like it, but the
> documentation suggests that a role name must be unique *without
> Azure* so let's get all the randomness we can get :).

I might be wildly off, but I /think/ that:

- using a prefix of 10 characters to create a disk name, thus leaving
  40 characters as random, with 36 choices per character,

- assuming that we're happy with a one in a quadrillion (10e15) chance
  of collision,

- that 10,000 new disks are created each second,

means that it'll take about 2 trillion years until the probability of
a collision rises above 1 in a quadrillion. Or, when the universe is
~140 times older than it already is.

Just sayin' :)