linux-ext4 - Re: How can I do online resize from 14TB to 30TB?

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Message-Id: <A09A0FD5-97DA-494A-B248-CFBC1AF7DBE4@dilger.ca>
Date:	Tue, 9 Nov 2010 14:29:05 -0700
From:	Andreas Dilger <adilger.kernel@...ger.ca>
To:	寬 <l021220a@...oo.com.tw>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: How can I do online resize from 14TB to 30TB?

On 2010-11-09, at 03:06, 寬 wrote:
> I saw the mail "E2fsprogs master branch now has all 64-bit patch applied" written by Ted.  Ext4 with 64bit couldn't do online resize which is larger than 16TB, because "meta_bg" in kernel is not ready.
> 
> However, it really took lots of time to do off-line resizing.  Could I do online resize without meta_bg?  Or what can I do for e2fsprogs to support online resize for larger than 16TB?

For the current time there will be no support for resizing a filesystem formatted < 16TB to one > 16TB.

Cheers, Andreas

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