Date: Sat, 2 Oct 1999 15:18:12 -0400 (EDT) From: Barrett Richardson <barrett@phoenix.aye.net> To: FreeBSD-questions@FreeBSD.org Subject: vinum failure simulation not working Message-ID: <Pine.BSF.4.01.9910021439460.12503-100000@phoenix.aye.net>
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I am running 3.3-RELEASE and have two 18GB drives that I want to mirror.
I've set them up like this.
--- /etc/vinum.rc ---
drive d1 device /dev/da1e
drive d2 device /dev/da2e
volume mirror
plex org concat
sd length 17516m drive d1
plex org concat
sd length 17516m drive d2
--- end ---
I do these steps:
libra# vinum create -f /etc/vinum.rc
libra# vinum init mirror.p0
libra# vinum init mirror.p1
Then wait till that finishes, and put these two lines in my rc.conf
start_vinum="YES"
vinum_drives="da1 da2"
and then reboot.
I notice that mirror.p1 is faulty and mirror.p1.s0 is reviving but
there is no activity on either drive, so I do this:
libra# vinum start mirror.p1
The drives start humming and after a while mirror.p1 is up.
Next, I build a filesystem on /dev/vinum/rmirror:
libra# newfs -v /dev/vinum/rmirror
and mount it
libra# mount /dev/vinum/mirror /mnt
and copy some files to it
libra# cd /usr;find src/sys -print | cpio -pdm /mnt
Then I stop mirror.p1
libra# vinum stop mirror.p1
and commence to copy some more files
libra# cd /usr;find src.old -print | cpio -pdm /mnt
All the copied files are ok, and 'vinum l' shows
mirror.p1.s0 to be obsolete.
I then unmount the filesystem, uncomment the lines out of
rc.conf that start vinum, and reboot. Once it comes
back up I have no vinum process running.
Here's what I do. I disklabel da2 and change slice e back to 4.2BSD
and build a filesystem on /dev/rda2s1e, copy some files to it ...
I then unmount it, disklabel da2 and change slice e back to vinum,
edit my rc.conf to launch vinum again, and reboot.
Once it comes back up, a 'vinum l' show mirror.p1 as faulty, and
mirror.p1.s0 as crashed. So I do this
libra# vinum start mirror.p1
And mirror.p1.s0 changes to 'reviving', the drives are busy,
all is good.
I'm feeling brave, so I mount the filesystem
libra# mount /dev/vinum/mirror /mnt
While it is reviving and have a look at /mnt
libra# ls -l /mnt
and see my directories
total 2
drwxr-xr-x 3 root wheel 512 Oct 2 14:31 src
drwxr-xr-x 3 root wheel 512 Oct 2 14:33 src.old
I keep doing 'ls -l' and after a while, src.old disappears.
Then it reappears. It disappears again a while later.
The files in src do the same. They keep appearing and
disappearing, but the directory src is always there,
just sometimes empty. The files in src.old which I
copied after I downed mirror.p1 have never been visible.
I've run this test several times with similar results
and haven't yet been able to rebuild the mirror.
Any hints or tips?
-
Barrett Richardson (my name)
barrett@aye.net (my email address)
main(){} (my program)
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