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Message-ID: <AANLkTik7KFn1eU2o5sRm3CM1jmoWszKGzDXMpUyjQec6@mail.gmail.com> Date: Tue, 9 Nov 2010 14:12:00 -0800 From: Justin Maggard <jmaggard10@...il.com> To: ext4 development <linux-ext4@...r.kernel.org> Subject: Re: How can I do online resize from 14TB to 30TB? 2010/11/9 Andreas Dilger <adilger.kernel@...ger.ca>: > 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. > On a related topic, currently 4KB-block ext4 filesystems with the 64bit flag set apparently can only expand online by a max increase of 8TB (16TB without 64bit), even if you specify a larger value with -E resize=XXX. Are there any plans to improve this? Thanks, -Justin -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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