February 11, 2012

De-Allocating is the Core Issue for Thin Provisioning

One of the biggest problems for thin provisioning is not the provisioning part: It’s fairly easy for a storage array to allocate on request: “I need a block; here’s some data I want you to write.” And the storage array just starts allocating, and allocating. But, the operating system never goes back and says “I don’t need that block anymore.”

Answering Your Email Archiving Questions

My webinar on building a business case for email archiving was very well-attended, so I was not able to get to everyone during the question and answer section. Since the questions were really excellent, I thought I would include them (and my responses) here.