Date: Tue, 02 Dec 2008 02:23:34 -0500 From: Nathan Lay <nslay@comcast.net> To: Ivan Voras <ivoras@freebsd.org> Cc: freebsd-questions@freebsd.org Subject: Re: Disenchanted with ZFS; alternatives? Message-ID: <4934E276.3050308@comcast.net> In-Reply-To: <gh1erh$n6s$1@ger.gmane.org> References: <200812010959.15647.kirk@strauser.com> <gh1erh$n6s$1@ger.gmane.org>
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Ivan Voras wrote: > Kirk Strauser wrote: > > >> At this point, I'm almost ready to go back to good ol' UFS2, but I'd hate to >> give up that easy addition of new filesystems. I *could* have a single 700GB >> root FS but that just doesn't seem right. Are there any good, tested GEOM- >> based ways of getting that functionality, perhaps along the lines of using >> something like gvirstor and growfs as needed? >> > > There's nothing as convenient as ZFS (really... anywhere) :( . > > I'm still hoping someone will sponsor development or porting of a widely > used journalling file system like XFS, JFS, even ext3/4 to FreeBSD, but > in the meantime UFS2+SU isn't that bad. Practically the only way to > break it is if you have hardware errors that end up corrupting file > system data. The need to run full fsck occasionally (as opposed to the > softupdates-assisted one) is annoying but 700 GB should be manageable > with 3-4 GB of memory. The softupdates-assisted fsck actually works very > well in all but the heaviest loads (i.e. when the server is swamped by > requests immediately after booting). > > You could also try gjournal but benchmark and test it first for your > workload. > > gvirstor is a theoretically good option if you need its specific > functionality, only be doubly sure to benchmark it for your specific > workload as it has some /unusual/ performance characteristics. > > What about DragonFlyBSD's new HAMMER FS? I hear it has similar capabilities as ZFS without the overhead. Though, strangely, I haven't really heard anyone discuss it even though it was released some months ago. Best Regards, Nathan Lay
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