the answer to your real questions (what's different between these drives) is in your OP.
First two drive's smartctl -a shows:
Formatted with type 2 protection
8 bytes of protection information per logical block
that's your difference.
You'll need to remove the type 2 protection then you will likely have to format/reblock to 4k to reclaim the space. specific commands are posted in this thread and others. you can try and do it all in one fell swoop, however on the HGST HE 8TB's (mostly sun/oracle) which are typically 520 byte blocks - those have to have protection removed so that goes to 512 but the 8 bytes are still missing so you have to format again to 4K - and if you really want 512b then you have to format back down from 4k to 512b to reclaim the space.
Second two drives look fine from what you've posted.
Correct behavior ZFS no like mixing protected drives also different block size so even if it worked you'd be limited to size on first two drives.
Yes. Yes. see my comment above and read the thread or a google search - there are plenty of answers - for example
a couple of things: I've never seen fast format option work when removing protection.
Depending on your hardware remember --six is your friend.
First two drive's smartctl -a shows:
Formatted with type 2 protection
8 bytes of protection information per logical block
that's your difference.
You'll need to remove the type 2 protection then you will likely have to format/reblock to 4k to reclaim the space. specific commands are posted in this thread and others. you can try and do it all in one fell swoop, however on the HGST HE 8TB's (mostly sun/oracle) which are typically 520 byte blocks - those have to have protection removed so that goes to 512 but the 8 bytes are still missing so you have to format again to 4K - and if you really want 512b then you have to format back down from 4k to 512b to reclaim the space.
Second two drives look fine from what you've posted.
Correct behavior ZFS no like mixing protected drives also different block size so even if it worked you'd be limited to size on first two drives.
Yes. Yes. see my comment above and read the thread or a google search - there are plenty of answers - for example
a couple of things: I've never seen fast format option work when removing protection.
Depending on your hardware remember --six is your friend.
