hail,
I have a 7-stable:
[matheus@xxx /usr/home/matheus]$ uname -a
FreeBSD xxx 7.0-STABLE FreeBSD 7.0-STABLE #2: Sun Jul 6 15:03:26 BRT 2008
root@lamneth:/usr/obj/usr/src/sys/xxx_7 i386
and there exists three geom things.
gconcat status
Name Status Components
concat/concat0 UP ad4
ad5
gmirror status
Name Status Components
mirror/mirror0 COMPLETE ad8s1
ad10s1
gstripe status
Name Status Components
stripe/stripe0 UP ad8s2
ad10s2
and a small (100GB) zfs pool.
the thing is, if I take all these disks to a 6.3R-p2 system, will I get in
trouble ? what if this 6.3R becomes 7-stable also, will this trouble
disappear ?
the 7-stable is now a old epox motherboard with highpoint ide raid (used
as normal ide) and two sata ports, the 6.3R is a pentium II two port
regular ide motherboard, I'll add a 4 port sata pci card. lets forget
about the zfs need for memory (noew runs fine since sunday with 512MB),
just the disk order change (ad4 probably won be ad4 anymore).
thanks,
matheus
matheus@eternamente.info wrote:> hail, > > I have a 7-stable: > > [matheus@xxx /usr/home/matheus]$ uname -a > FreeBSD xxx 7.0-STABLE FreeBSD 7.0-STABLE #2: Sun Jul 6 15:03:26 BRT 2008 > root@lamneth:/usr/obj/usr/src/sys/xxx_7 i386 > > and there exists three geom things. > > gconcat status > Name Status Components > concat/concat0 UP ad4 > ad5 > gmirror status > Name Status Components > mirror/mirror0 COMPLETE ad8s1 > ad10s1 > gstripe status > Name Status Components > stripe/stripe0 UP ad8s2 > ad10s2 > > and a small (100GB) zfs pool. > > the thing is, if I take all these disks to a 6.3R-p2 system, will I get in > trouble ? what if this 6.3R becomes 7-stable also, will this trouble > disappear ?I think it should just ignore the parts it can't recognise. I have a vague memory that something about the metadata format changed in one of the geom providers (mirror/stripe/something) so there might be a problem there. Try to research whether that is the case. In general you'll be better off if you just run it on 7.0 of course. Kris
matheus@eternamente.info wrote:> hail, > > I have a 7-stable: > > [matheus@xxx /usr/home/matheus]$ uname -a > FreeBSD xxx 7.0-STABLE FreeBSD 7.0-STABLE #2: Sun Jul 6 15:03:26 BRT 2008 > root@lamneth:/usr/obj/usr/src/sys/xxx_7 i386 > > and there exists three geom things. > > gconcat status > Name Status Components > concat/concat0 UP ad4 > ad5 > gmirror status > Name Status Components > mirror/mirror0 COMPLETE ad8s1 > ad10s1 > gstripe status > Name Status Components > stripe/stripe0 UP ad8s2 > ad10s2 > > and a small (100GB) zfs pool. > > the thing is, if I take all these disks to a 6.3R-p2 system, will I get in > trouble ? what if this 6.3R becomes 7-stable also, will this trouble > disappear ?There is incompatible change in gmirror metadata format and 6.x will not recognize gmirrors created or even booted with 7.x kernel. Miroslav Lachman