[Help] Sector Size with RAID 5
Posted: 09 Nov 2025, 13:27
Hello,
I have a Terramaster D5 T3 with five 20TB disks, which should total 100TB. I chose RAID 5 for its file security and efficient read/write speeds, as I work in postproduction.
However, I noticed a significant difference in available space based on the sector size I select when creating the array. Choosing 512B gives me 80TB of space, while selecting 4K results in only 60TB.
Which sector size should I go with?
I have a Terramaster D5 T3 with five 20TB disks, which should total 100TB. I chose RAID 5 for its file security and efficient read/write speeds, as I work in postproduction.
However, I noticed a significant difference in available space based on the sector size I select when creating the array. Choosing 512B gives me 80TB of space, while selecting 4K results in only 60TB.
Which sector size should I go with?