From: "Carlos E. R." <robin.listas@telefonica.net>
To: Linux-XFS mailing list <linux-xfs@vger.kernel.org>
Subject: Re: Same size drive has less usable space
Date: Thu, 20 Dec 2018 19:47:21 +0100 [thread overview]
Message-ID: <89b5b424-01a0-5369-963f-8adc044b5f2c@telefonica.net> (raw)
In-Reply-To: <20181220163943.5d8c6c2c@lud1.home>
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On 20/12/2018 19.39, Luciano ES wrote:
> On Thu, 20 Dec 2018 11:32:33 -0600, Eric Sandeen wrote:
>
>> but ok, I missed that you had 2k blocks on your backup disk.... I
>> don't really know what you're trying to do here, TBH.
>
> Smaller blocks waste less space. In ext3/4, I've always used 2k or
> even 1k blocks. It does save space. Doesn't it in XFS too?
Depends. Not always "smaller blocks waste less space". It depends on the
mix of filesizes. If most files are big, then no.
Consider, for instance, that in a filesystem with a fixed number of
inodes (like ext2/3/4), when using small blocks the structures that list
the blocks are larger, simply because there are more blocks.
--
Cheers / Saludos,
Carlos E. R.
(from 42.3 x86_64 "Malachite" at Telcontar)
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next prev parent reply other threads:[~2018-12-20 18:47 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-20 15:13 Same size drive has less usable space Luciano ES
2018-12-20 16:04 ` Carlos E. R.
2018-12-20 16:10 ` Eric Sandeen
2018-12-20 16:26 ` Darrick J. Wong
2018-12-20 16:59 ` Eric Sandeen
2018-12-20 16:55 ` Luciano ES
2018-12-20 17:32 ` Eric Sandeen
2018-12-20 18:39 ` Luciano ES
2018-12-20 18:47 ` Carlos E. R. [this message]
2018-12-20 17:45 ` Darrick J. Wong
2018-12-21 16:57 ` Emmanuel Florac
2018-12-22 0:49 ` Luciano ES
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