From: Christoph Hellwig <hch@infradead.org>
To: Roman Mamedov <rm@romanrm.net>
Cc: Filipe Maia <filipe.c.maia@gmail.com>,
linux-raid@vger.kernel.org, linux-xfs@vger.kernel.org
Subject: Re: Sector size changes creating filesystem problems
Date: Wed, 16 Jul 2025 21:30:56 -0700 [thread overview]
Message-ID: <aHh8gJ26ES2MQ77A@infradead.org> (raw)
In-Reply-To: <20250716221003.0cda19e3@nvm>
On Wed, Jul 16, 2025 at 10:10:03PM +0500, Roman Mamedov wrote:
> If you dd the XFS image from an old 512b disk onto a newly bought large
> 4K-sector HDD, would it also stop mounting on the new disk in the same way?
>
> Perhaps something to be improved on the XFS side?
Nothing to be improved, as the sector size obviously matters. It is
part of the hardware geometry that is fixed, as XFS can read and write
down to the sector size boundary. Both for internal metadata, and
through direct I/O also for applications. The latter is true for other
file systems to, so even when you can change the sector size for some
file systems, you will be subtly breaking applications instead.
prev parent reply other threads:[~2025-07-17 4:30 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-16 14:30 Sector size changes creating filesystem problems Filipe Maia
2025-07-16 16:21 ` Yu Kuai
2025-07-17 1:07 ` Yu Kuai
2025-07-17 21:07 ` Martin K. Petersen
2025-07-16 17:10 ` Roman Mamedov
2025-07-16 17:46 ` Filipe Maia
2025-07-17 4:30 ` Christoph Hellwig [this message]
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