How Backblaze Scales Firm's Storage Cloud?
StorageNewsletter.com, Friday, May 31st, 2024
ncreasing storage density is a fancy way of saying we are replacing one drive with another drive of a larger capacity; for example replacing a 4TB drive with a 16TB drive - same space, 4x the storage.
You've probably copied or cloned a drive or 2 over the years, so you understand the general process. Now imagine having 270,000 drives that over the next several years will need to be replaced, or migrated as is often the term used. That's a lot of work. And when you finish - well actually you'll never finish as the process is continuous for as long as you are in the cloud storage business. So, how does Backblaze manage this ABC (Always Be Copying) process? Let me introduce you to CVT Copy or CVT for short.