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From: Tvrtko Ursulin <tvrtko.ursulin@onelan.co.uk>
To: linux-ext4@vger.kernel.org
Subject: Maximum number of directories
Date: Mon, 04 Feb 2013 10:55:54 +0000	[thread overview]
Message-ID: <17001225.1MS6YREEfJ@deuteros> (raw)


Hi all,

What is the maximum number of directories ext4 can hold in a tree layout with 
a depth of ~160 and each directory node having then a couple to couple dozen 
subdirectories?

I was creating such a (crazy?) tree and hit -ENOSPC at ~31 million directories 
created in total with df showing only 40% use:

Filesystem                 1K-blocks       Used  Available Use% Mounted on
/dev/mapper/data           477277612K 177766152K 275621952K  40% /data

Some lines from tune2fs made me think it should hold more, but obviously I was 
mistaken? Or it is a bug?

Inode count:              29868032
Free inodes:              29848131

Regards,

Tvrtko


             reply	other threads:[~2013-02-04 11:29 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-02-04 10:55 Tvrtko Ursulin [this message]
2013-02-04 13:19 ` Maximum number of directories Prashant Shah
2013-02-04 13:36   ` Tvrtko Ursulin
2013-02-04 15:58     ` Prashant Shah
2013-02-05 13:06     ` Lukáš Czerner
2013-02-05 14:30       ` Tvrtko Ursulin
2013-02-05 14:43         ` Lukáš Czerner
2013-02-05 14:58           ` Tvrtko Ursulin

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