[jrockway]

The article describes why scrubs don't happen often enough: it's slow and disruptive. I have a 3-way RAID-1 /home partition (long story) and it's checked on the first Sunday of the month. I always remember this because I can tell from the performance of my workstation that something is up with the disk. This is with operations like a single thread running "ls". If you're running a production service, you're also going to notice, and you're also going to have more than 3TB of drive to scan. That makes running regular scans rather difficult.