Date: Thu, 22 Nov 2001 23:00:41 -0600 From: David Kelly <dkelly@hiwaay.net> To: Sean LeBlanc <seanleblanc@home.com> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: Filesystems questions Message-ID: <200111230500.fAN50fU95393@grumpy.dyndns.org> In-Reply-To: Message from Sean LeBlanc <seanleblanc@home.com> of "Thu, 22 Nov 2001 21:02:38 MST." <20011122210238.A682@hostwiththemost>
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Sean LeBlanc writes:
>
> I've been dabbling with FreeBSD a little over a week now, and I was
> wondering about other filesystems, and how often they are used? Also
> journaling filesystems like ext3 and Reiser that Linux has.
Is sad in a way, because FreeBSD's UFS is pretty darn good so there
isn't as much motivation (as with Linux) to replace it with something
else. Having said that, I'd like to see SGI's XFS for FreeBSD for no
other reason than I have many years of success running SGI machines and
XFS.
> I was doing some Google searches, and I saw that ufs uses soft updates to
> make up for not journaling? Any alternative filesystems for FreeBSD
> that are popular?
Type "mount" with no arguments to see if softupdates is enabled on your
filesystmes. Is not enabled by default. Or at least not the way I run
sysinstall. It does make a big difference.
grumpy: {1002} mount
/dev/da0s2a on / (ufs, local, soft-updates)
/dev/da0s2f on /usr (ufs, local, soft-updates)
/dev/da0s2e on /var (ufs, local, soft-updates)
/dev/ad4s3e on /usr2 (ufs, local, soft-updates)
/dev/ad4s3f on /usr3 (ufs, local, soft-updates)
/dev/ad4s3g on /usr4 (ufs, local, soft-updates)
procfs on /proc (procfs, local)
grumpy: {1003}
Another thing you may not have picked up on is that the routines for
creating the positions of directories in filesystems has changed since
the -RELEASE. The format hasn't changed, only now they are put where
they are faster to get at. Has produced the most spectacular filesystem
performance increase I've seen in FreeBSD since 2.0.0. Only helps on new
directories, but its pretty easy to copy whatever out then back in.
> Also, I've picked up Greg Lehey's _The_Complete_FreeBSD_. This was based on
> some Amazon reviews I've read and the fact that my local B&N actually only
> carried this one out of like six potentially good titles I wrote down before
> going to B&N. It doesn't seem bad; it just seems a tad thin on some areas,
> and thick on others (that I don't think I'll necessarily need). Anyone have
> any recommendations for a good supplement to this book...besides the web
> site, that is? I know lots of folks like to point there for answers, but I
> want something I can sit down and read offline.
I haven't seen recent editions of Greg's book but originally when it
was written there wasn't anything else for FreeBSD. So it was fairly
important to cover most everything.
To my knowledge none of the current FreeBSD-centered books suffer from
the Linux phenomena of "If you put Linux in the title then we'll
publish." I bought one or two this past week but haven't opened them
yet. I like http://www.bookpool.com/ for computer books as they have
great prices, availability, and have always treated me correctly.
--
David Kelly N4HHE, dkelly@hiwaay.net
=====================================================================
The human mind ordinarily operates at only ten percent of its
capacity -- the rest is overhead for the operating system.
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