Path: news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail
From: Lawrence D'Oliveiro <ldo@nz.invalid>
Newsgroups: comp.os.linux.misc
Subject: Re: Shutdown - 25 Years Later
Date: Sat, 26 Apr 2025 22:56:22 -0000 (UTC)
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On Sat, 26 Apr 2025 17:08:53 +0100, Richard Kettlewell wrote:

> The reality is that storage devices are in a better position to manage
> this than OS kernels are ...

But storage devices cannot know how they are used, as part of an array, or 
an LVM logical volume which is carved out of a volume group, or whatever. 
Or how the filesystem is structured on top of that. Only the OS knows 
this.

Does the drive know how the journalling works, or where the redundant 
superblocks are located? No, it doesn’t. What is the algorithm for 
spreading out those copies of the superblock to try to ensure that a 
single head crash is unlikely to destroy them all? Does the drive itself 
help with this? No.