[Dovecot] Filesystem size limitation?

I'm new to dovecot, nice to meet you guys here.

Referring to Redhat, 32bit Linux v5 GFS supports 16TB filesystem size while 64bit version supports 8 EB (1EB = 1024TB) size.

Reference: http://www.redhat.com/rhel/compare/

My question is, any limitation on a single filesystem (Redhat GFS) that Dovecot can handle? or Dovecot depends only on the limitation of OS?

Thanks in advance! MJK

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