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Date:	Sun, 29 Jul 2012 18:48:58 +0200
From:	Arne Hüggenberg <hueggenberg@...rtsandbytes.de>
To:	Andreas Dilger <adilger@...mcloud.com>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: resize2fs > 16TB questions


On Jul 29, 2012, at 6:11 PM, Andreas Dilger wrote:
>> ~ # tune2fs -l /dev/vg0/lvol1
>> tune2fs 1.42.4 (12-June-2012)
>> Filesystem volume name:   <none>
>> Last mounted on:          /home/filestore_extern_1
>> Filesystem UUID:          8fba4f1b-5311-4c9b-b8bf-def4957dc1bd
>> Filesystem magic number:  0xEF53
>> Filesystem revision #:    1 (dynamic)
>> Filesystem features:      has_journal ext_attr resize_inode dir_index filetype needs_recovery extent 64bit flex_bg sparse_super large_file huge_file uninit_bg dir_nlink extra_isize
> 
> Was the filesystem formatted with the 64bit option, or was this enabled after formatting time?  This puts my earlier comment in doubt. 

Can it even be changed after format time? I tried to do that to save a backup/restore cycle, but tune2fs would not let me?

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Arne Hüggenberg
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