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Zetta is the new Peta, or Zebi

The prefix after tera- should be 10005, or peta-. Therefore, after terabyte comes petabyte. Next is exabyte, then zettabyte and yottabyte. Those are powers of 100010 not 102410 ( which is (210)10). Really we should be saying gibibyte (102410)3 or (210)30, tebibyte (102410)4 or (210)40, pebibyte (102410)5 or (210)50, exbibyte (102410)6 or (210)60, zebibyte (102410)7 or (210)70, and yobibyte (102410)8 or (210)80.  From What Comes After Terabyte? | Britannica

See also https://pc.net/helpcenter/answers/kibibytes_mebibytes_and_gibibytes