I was asked this question this morning and I thought this might be a good one to answer in my blog.
We don't have a book about DB2 pureScale yet, but I have a team of
experts putting together a flash book that will be available early next
year. In the mean time, I suggest you look at the following sources of
IBM DB2 pureScale Unlimited capacity with continuous availability
DB2 pureScale: A Technology Preview
Announcing DB2 pureScale