kraduk at googlemail.com
Sun Aug 8 13:30:27 UTC 2010
On 8 August 2010 13:27, Matthew Seaman <m.seaman at infracaninophile.co.uk>wrote:
> On 08/08/2010 12:43:48, Dick Hoogendijk wrote:
> > Years back I ran FreeBSD, so I have some experience. The last couple of
> > years I ran Solaris, followed by Opensolaris. I am very satisfied.
> > However, considering the troubles after Oracle took over I have rebuild
> > my server system under FreeBSD-8.1 (now running as a virtual machine
> > under VirtualBox). All works very well and smooth so I'm going to
> > transfer this VM to a real seperate harddisk.
> > I have a couple of questions:
> >  Transfering the VM is best done using dump/restore I guess? (This
> > after a smallest creation of fbsd81 on the new harddisk) ?
> Yes, that would be a pretty good way of doing your vtophys migration.
> > My server has five disks: 1 PATA (160Gb), 2 SATA2 (500Gb) and 2 SATA2
> > (1Tb) The fist is disabled at the moment and the others are ZFS mirrors
> > under opensolaris. they are not usable for freebsd because the zfs
> > versions don't match. I will have to rebuild. ;-)
> % zpool list -H -o version zroot
> % zfs list -H -o version /
> Those are the latest available under 8-STABLE -- 8.1-RELEASE will be the
> > However, I'm a bit worried about the status of ZFS on FreeBSD-8.1 I
> > don't want my system to boot off ZFS like I have now on OpenSolaris-b134
> > I think it is wisest to have the 160Gb IDE drive installed for FreeBSD
> > system drive w/ UFS2 and after that create two ZFS mirrors from my SATA
> > drives.
> Hmmm... well, booting FreeBSD off ZFS works perfectly well. Apart from
> the lack of support in sysinstall, I can't see any good reasons to avoid
> it. However, it's your system, and booting from UFS also works very
> well, so do whatever pleases you.
> There's more of a question over whether it's a good idea to put swap
> onto zfs -- I think the recommendation is still to prefer using a raw
> partition or gmirror for that.
> > Is ZFS (v14) ready for production on FreeBSD-8.1 and if yes, will I
> > still need special settings? The server system is 64bits and has 3Gb
> > memory.
> Yes. It works very well.
> On amd64 you'll get a pretty reasonable setup out of the box (so to
> speak) which will work fine for most purposes. Of course, if your
> system has particularly demanding IO patterns, then you may have to
> tweak some loader.conf or sysctl parameters to get the best results.
> But that's hardly unique to ZFS.
> > I hope to get some answers or good reading points.
> The FreeBSD Wiki entries on ZFS are very useful to read:
> http://wiki.freebsd.org/ZFS (and the links from that page)
> especially the recipes for installing various different ZFS based
> configurations: eg. http://wiki.freebsd.org/RootOnZFS
> Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard
> Flat 3
> PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate
> JID: matthew at infracaninophile.co.uk Kent, CT11 9PW
if you want an easy zfsroot install use the pcbsd installer as it supports
zfs installation and can install plain freebsd
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