Re: Filesystem size limit

From: Arthur Corliss <acorliss@nevaeh-linux.org>
Date: Fri Feb 25 2005 - 13:23:33 AKST

On Fri, 25 Feb 2005, volz wrote:

> A simple filesystem question.
>
> Does 32 bit linux have a filesystem size limit near 3 terabyte?

On average it's typically more around 2TB (w/2.4), but it can vary depending
on the filesystem and kernel rev. For us LVM1 users there's also a limit on
the LV size, which is 1TB. See the defs in
/usr/include/linux/{fs,blkdev,lvm}.h and related files.

That's the fun part of the math. XFS can theoretically address millions of
terabytes of space, but Linux can't do so at the block device layer. Max file
sizes are likewise constrained by page size and addressible offset range.

        --Arthur Corliss
          Bolverk's Lair -- http://arthur.corlissfamily.org/
          Digital Mages -- http://www.digitalmages.com/
          "Live Free or Die, the Only Way to Live" -- NH State Motto
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Received on Fri Feb 25 13:23:47 2005

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