linux-ext4 - Re: EXT4 Larger Than 16TB

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Message-ID: <51EC64E8.8090509@zytor.com>
Date:	Sun, 21 Jul 2013 15:47:04 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Michael <mike@...ftx.net>
CC:	"Theodore Ts'o" <tytso@....edu>, linux-ext4@...r.kernel.org
Subject: Re: EXT4 Larger Than 16TB

On 07/09/2013 06:45 AM, Michael wrote:
> No problem, it sounds like it would be a very tricky bit of code to
> write. Shuffling metadata blocks is not an easy feat.
> 
> Is there any way to tell if I'm using 64 bit? Ubuntu defaults to
> setting ext4 to default, but I don't know if it did when I first
> created this FS.
> 
> If it is 64 bit, the resize2fs utility should be able to handle this
> one kernels >3.7, correct?
> 

Is there a way to force this at mkfs time?  I.e. "I know I may want to
expand this filesystem beyond the 16 TB point?"

	-hpa

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