HDD nasıl veri kaydeder ve okur?

03 Tem 13:26

Had this exact question a few months back when I swapped out my 2TB 5400 RPM WD Blue for a 4TB Seagate IronWolf Pro in my NAS. Thinking about it now, the main difference I noticed wasn’t just capacity or price, but the seek time hit when I moved from the Blue to the Pro. My old WD Blue would spin at 5400 RPM and I could actually *hear* the heads chatter if I ran a full disk check with CrystalDiskMark – like old-school hard drive noise on steroids. Then I slotted in the IronWolf Pro at 7200 RPM, and not only did benchmarks jump from 120MB/s to 200MB/s sustained, but the NAS went from sounding like a popcorn machine to just a quiet hum. The IronWolf’s actuator also felt smoother under heavy load, like it wasn’t skipping tracks as aggressively. So yeah, RPM and head technology make a bigger difference than most people think – especially if you’re pushing sequential workloads or doing parity checks on a RAID setup. The IronWolf Pro has lasted me 6 months now with zero smart errors; the Blue? Lasted me 3 years but was constantly on the edge. Moral of the story: if you’re picking HDDs, don’t just look at GB/$ — listen to how they under load.