
My data heap keeps growing and I do have a good multi-layer and multi-location backup strategy. Offline and off-site storage is the motto of the day, which requires hard disks with large capacities so data can be physically moved. So far, I used several 8 TB hard disks to which I would sync the data from various sources. I’ve come to a point however, where 8 TB is no longer enough and incidentally, I noticed a significant slow down during my backup procedures. So I bought my first 20 TB drive which, so far, performs very nicely. But I really do wonder why my 8 TB drives seem to have slowed down so much while that new shiny 20 TB drive (still?) performs much better. So it was time to do some benchmark tests with different drives and real world data so I can see how new drives perform with my data and analyze performance of existing drives. But why do I care? Because it makes a huge difference if 10 TB of data is moved to or from a disk drive at an average of 50 MB/s or 200 MB/s. At 50 MB/s, moving such an amount of data requires 55 hours, while at 200 MB/s it only takes 13 hours. And we are not even talking 20 TB yet. You see where this goes…
Continue reading HDD Performance – Part 1 – Huge Files on a New 20TB Drive