From: Justin Maggard Subject: Re: How can I do online resize from 14TB to 30TB? Date: Tue, 9 Nov 2010 14:12:00 -0800 Message-ID: References: <855286.34705.qm@web74212.mail.tp2.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE To: ext4 development Return-path: Received: from mail-yw0-f46.google.com ([209.85.213.46]:42904 "EHLO mail-yw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751202Ab0KIWMD convert rfc822-to-8bit (ORCPT ); Tue, 9 Nov 2010 17:12:03 -0500 Received: by ywc21 with SMTP id 21so4757689ywc.19 for ; Tue, 09 Nov 2010 14:12:01 -0800 (PST) In-Reply-To: Sender: linux-ext4-owner@vger.kernel.org List-ID: 2010/11/9 Andreas Dilger : > On 2010-11-09, at 03:06, =E5=AF=AC wrote: >> I saw the mail "E2fsprogs master branch now has all 64-bit patch app= lied" written by Ted. =C2=A0Ext4 with 64bit couldn't do online resize w= hich is larger than 16TB, because "meta_bg" in kernel is not ready. >> >> However, it really took lots of time to do off-line resizing. =C2=A0= Could I do online resize without meta_bg? =C2=A0Or what can I do for e2= fsprogs to support online resize for larger than 16TB? > > For the current time there will be no support for resizing a filesyst= em 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=3DXXX. Are there any plans to improve this? Thanks, -Justin -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html