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Forum Discussion
Display available space vs. expected available space
I'm running a 516 with six 6TB drives under RAID 5 after a factory reset. The available space (during the rebuild) says 27.7 TB, though I would have expected it to say 30 TB given the drives I have i...
A better way to say this:
Disk Drive manufacturers mean 1 000 000 000 000 bytes when they say "1 TB".
Most computer operating systems mean 1 099 511 627 776 bytes when they say "1 TB" This unit (1024*1024*1024*1024) is properly called TiB, but most people drop the "i".
This creates a lot of confusion.
Your volume should be about 30 000 000 000 000 bytes (minus a few GB for the OS partition and some overhead). That is 27.28 TiB. So this is just a units of measure thing - the available space will not jump to 30 when the rebuild completes.
Disk Drive manufacturers mean 1 000 000 000 000 bytes when they say "1 TB".
Most computer operating systems mean 1 099 511 627 776 bytes when they say "1 TB" This unit (1024*1024*1024*1024) is properly called TiB, but most people drop the "i".
This creates a lot of confusion.
Your volume should be about 30 000 000 000 000 bytes (minus a few GB for the OS partition and some overhead). That is 27.28 TiB. So this is just a units of measure thing - the available space will not jump to 30 when the rebuild completes.
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