Re: Increasing limit on SCSI hard drives

Ralf (ralf@dcs.warwick.ac.uk)
Fri, 31 Jul 1998 14:24:22 +0100 (BST)


> > Yes, I think a journaling file system for Linux would be a VERY good idea -
> > personally, I'm fed up of having a disk check (fsck) every time I get a crash
> > (ie, when I haven't shutdown cleanly - that's me, Mr dirty shutdown, always
> > locking up in X, and who knows what... You just CAN'T get the staff these days).
>
> There are people already looking at Journalling ext2fs

Who, just out of interest?

I thought it would be a nice idea, and so a couple of weeks ago, I
started writing one. It's still got a long way to go, and so if other
people are nearing completion on a similiar system, it would be good to
know before I waste too much time on my project...

However, a few points on mine:

o It's not ext2 compatible, partly because it can lead to more efficient
use of space, and also I don't ever want to write to a block that is
currently allocated. It seems to make things harder to try and get
ext2 and a journalling system to co-exist for little benefit.

o I'm going to support over 4Gb files internally.

o I *want* to support ACLs, as I use them a lot under Solaris. However,
there appears to be no defined interface to the kernel for them. Do I
just invent an interface, or shall I submit a document proposing a new
interface on this list. Perhaps Solaris' acl() and facl() calls should
be used as a model.

o I'm using 32-bit UID/GID in the filesystem.

Ralf.
____ ____ _ _ ____ .----------------------------------------.
_\__ \ _\__ \ / \ / \\__/ | Ranulf Doswell |
/ \_/ /_ / \_/ \ / / / /___ | Department of Computer Science |
\ __ \\ __ \\ \ _\ \\_/ |University of Warwick, COVENTRY, CV4 7AL|
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