Hello everyone again, as some of you might have read I have a machine that works as a media server. It has now 3HDD (500GB boot and two 2TB WD Green HDDs) the pair of 2TB HDDs are each one in a ZFS pool. I have other two spare NEAR-RAID1 2TB Seagate Barracuda and I said near because they are just two boxed HDD's with anti-estatic bags just in case a the other two fail.
Now the spare ones are formatted in HFS and they show in Mac as 2TB but the ones at the server show up as 1.96TB AFP shares. I know that manufacturers show their number in decimal orders of magnitude but both pairs effectively have different usable sizes, since when I moved the files from the HFS pair to the other one (ZFS) I couldn't move all the files because they lack space.
I know that FreeBSD reserves some space when one formats a drive with UFS, does the same thing happen with ZFS? Is the missing space used for store checksums to check file integrity, and if not where is the space?
Now the spare ones are formatted in HFS and they show in Mac as 2TB but the ones at the server show up as 1.96TB AFP shares. I know that manufacturers show their number in decimal orders of magnitude but both pairs effectively have different usable sizes, since when I moved the files from the HFS pair to the other one (ZFS) I couldn't move all the files because they lack space.
I know that FreeBSD reserves some space when one formats a drive with UFS, does the same thing happen with ZFS? Is the missing space used for store checksums to check file integrity, and if not where is the space?