I'm actually surprised that you see any performance improvement: I believe the current 4k sector drives actually lie and claim to be 512-byte sector drives, so I'd expect performance to be worse if you aren't writing big files (writing 512 bytes means the disk has to read 4k then update those 512 bytes and then write 4k back to the disk).
Originally Posted by
Simonta
Yes, the larger the cluster, the more "slack" you have on your disk as every file is padded out to a full cluster size multiple but I don't see the link with error correction?
I'm not entirely sure of the mechanism myself, but apparently 4k sectors can provide better error correction with less overhead, so you can fit more useful data on the disk in space that would previously have been used for error correction bits.