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camcontrol is from FreeBSD. I don't have a Linux box available right now but maybe "hdparm -I" does something similar: "request identification info directly fr

• StavrosK 14y ago
  Yep, that works: Logical Sector size: 512 bytes Physical Sector size: 4096 bytes I'm guessing that's not very nice. My ZFS pool was created with ashift 9 (this is 2^9=512 bytes), when it should be 12 (2^12=4096). I will have to copy everything off and back on again. For everyone who wants to check, and because I couldn't find info on it, run: zdb | grep ashift And see if it's 9 or 12.