Re: [Patch] Cleanup struct gendisk registration, 2.3.40-pre1

From: Jamie Lokier (lkd@tantalophile.demon.co.uk)
Date: Mon Jan 17 2000 - 15:02:10 EST


Alan Cox wrote:
> Its caught errors before that probably avoided people losing data. Its a good
> sanity check. The "stupid" defaults are two other things
>
> o Using 1K blocks on large disks (4K is way faster) and
> 4K checks way faster too
>
> o Not using the "sparse superblock" option on large disks
> when creating them.
>
> Unfortunately I dont think there are any "in place" fixers for those creation
> time choices

Sparse superblocks can be turn on/off by the current tune2fs.
You follow it by a fsck to clean up, then it's done.
I was hoping they'd speed up the mount but its still takes an age...

Why does 4k blocksize check faster? (I've never tried it). Does it use
fewer superblocks?

-- Jamie

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