Date: Sun, 16 Nov 2008 22:14:35 -0500 From: CmdLnKid <cmdlnkid@gmail.com> To: George Hartzell <hartzell@alerce.com> Cc: freebsd-stable@freebsd.org Subject: Re: problem moving gmirror between two machines. Message-ID: <alpine.BSF.2.00.0811162208500.56550@qvzrafvba.5c.ybpny> In-Reply-To: <18720.55070.363778.698000@almost.alerce.com> References: <18716.48723.452606.66518@almost.alerce.com> <18720.55070.363778.698000@almost.alerce.com>
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On Sun, 16 Nov 2008 21:29 -0000, hartzell wrote: > George Hartzell writes: > > > > I have an HP DL360 with a pair of 1TB seagate disks that's been > > running -STABLE with a ZFS root partition set up using the tools > > available here: > > > > http://yds.coolrat.org/zfsboot.shtml > > > > It's been working great. As part of trying to understand what's going > > on, I csup'ed to -RELENG earlier today and rebuilt/installed the > > kernel and world whilst running on the DL360, so everything should be > > current. > > > > I tried to move the disks into an HP DL320 G4 and it fails to boot > > because it can't find /dev/mirror/boot (which it wants to mount onto > > /strap and then parts get nullfs'ed onto /boot and /rescue). It gives > > me the opportunity to start a shell, and from that shell I can do a > > zfs mount -a and get all of the zfs filesystems mounted, but there's > > nothing in /dev/mirror. No gmirror status and list are silent. > > > > I can move the disks back into the older machine and they work fine. > > > > I've run fdisk -s ad4 and bsdlabel -A /dev/ad4s1a and diffed the > > output from the two machines and they're identical. > > > > I've booted with kern.geom.mirror.debug=2 and the DL320G4 tastes > > /dev/ad4s1a (along with everything else) but doesn't do anything with > > it. > > > > Any ideas? > > > > [for the archives] > > Solved. gmirror had been set up with -h specifying the device, and > although the newer server used the same device names for its disks > (ad[46]) it assigned them to different hot swap bays. Once I switched > the disks everything came up fine. > > g. Wouldn't it be more feasible in this situation to just glabel the disks and mount them from /dev/<fstype>/<label> instead. Might make your life easier in the future for swapping disks. Example: /dev/ufs/tmp on /tmp (ufs, asynchronous, local, gjournal) /dev/ufs/usr on /usr (ufs, local, soft-updates) /dev/ufs/var on /var (ufs, local, soft-updates) -- Sincerely, -- Jason H. ;; Networked Systems Engineering. The Command Line Kid. ;; Multi-user Systems Advocate. mailto:gmail.com!cmdlnkid ;; 1(616)403-XXXX / BSD Group. - (2^(N-1))
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