gmirror problem on 5.3-R i386
Doug Poland
doug at polands.org
Wed Jan 12 18:54:13 PST 2005
Hello,
I'm having a problem with gmirror. It would seem that I cannot add my
first disk to the mirror after booting off the second drive. My current
status is a degraded mirror and I cannot see any of the partitions on
disk one.
For a guide, I'm using the excellent instructions at:
http://people.freebsd.org/~rse/mirror/
My system has identical WD 80GB SATA drives (ad4 and ad6). I've
followed the steps in the document that are labeled:
"GEOM mirror Approach 2: Single Slice, Preferred, More Flexible"
# dd if=/dev/zero of=/dev/ad6 bs=512 count=79
# fdisk -v -B -I /dev/ad6
# gmirror label -v -n -b round-robin gm0s1 /dev/ad6s1
# gmirror load
# bsdlabel -w -B /dev/mirror/gm0s1
# bsdlabel -e /dev/mirror/gm0s1
# newfs -U /dev/mirror/gm0s1a
# mount /dev/mirror/gm0s1a /mnt
# dump -L -0 -f- / | (cd /mnt; restore -r -v -f-)
# newfs -U /dev/mirror/gm0s1d
# mount /dev/mirror/gm0s1d /mnt/var
# dump -L -0 -f- /var | (cd /mnt/var; restore -r -v -f-)
# newfs -U /dev/mirror/gm0s1e
# mount /dev/mirror/gm0s1e /mnt/tmp
# dump -L -0 -f- /tmp | (cd /mnt/tmp; restore -r -v -f-)
# mount /dev/mirror/gm0s1f /mnt/usr
# dump -L -0 -f- /usr | (cd /mnt/usr; restore -r -v -f-)
# cp -p /mnt/etc/fstab /mnt/etc/fstab.orig
# sed -e 's/dev\/ad4s1/dev\/mirror\/gm0s1/g' </mnt/etc/fstab.orig
# echo 'swapoff="YES"' >>/mnt/etc/rc.conf
# echo 'geom_mirror_load="YES"' >>/mnt/boot/loader.conf
# echo "1:ad(6,a)/boot/loader" >/boot.config
# shutdown -r now
# dd if=/dev/zero of=/dev/ad4 bs=512 count=79
# gmirror configure -a gm0s1
# gmirror insert gm0s1 /dev/ad4s1
At this point I see...
"Unknown provider ad4s1"
A gmirror list reveals:
Geom name: mirror
State: DEGRADED
Components: 2
Balance: load
Slice: 2048
Flags: NONE
SyncID: 2
ID: 4216140117
Providers:
1. Name: mirror/mirror
Mediasize: 80026361344 (75G)
Sectorsize: 512
Mode: r0w0e0
Consumers:
1. Name: ad4
Mediasize: 80026361856 (75G)
Sectorsize: 512
Mode: r0w0e0
State: ACTIVE
Priority: 0
Flags: NONE
SyncID: 2
ID: 3073402045
Geom name: mirror.sync
Geom name: gm0s1
State: COMPLETE
Components: 1
Balance: round-robin
Slice: 4096
Flags: NONE
SyncID: 1
ID: 3205827760
Providers:
1. Name: mirror/gm0s1
Mediasize: 80026329088 (75G)
Sectorsize: 512
Mode: r5w5e1
Consumers:
1. Name: ad6
Mediasize: 80026361856 (75G)
Sectorsize: 512
Mode: r5w5e2
State: ACTIVE
Priority: 0
Flags: DIRTY
SyncID: 1
ID: 1606771156
Geom name: gm0s1.sync
Here's a snippet of /var/log/messages after the first reboot:
Jan 12 17:47:21 webhost02 kernel: GEOM_MIRROR: Device gm0s1 created (id=3205827760).
Jan 12 17:47:21 webhost02 kernel: GEOM_MIRROR: Device gm0s1: provider ad6 detected.
Jan 12 17:47:21 webhost02 kernel: GEOM_MIRROR: Device gm0s1: provider ad6 activated.
Jan 12 17:47:21 webhost02 kernel: GEOM_MIRROR: Device gm0s1: provider mirror/gm0s1 launched.
Jan 12 17:47:21 webhost02 kernel: GEOM_MIRROR: Device mirror created (id=4216140117).
Jan 12 17:47:21 webhost02 kernel: GEOM_MIRROR: Device mirror: provider ad4 detected.
Jan 12 17:47:25 webhost02 kernel: GEOM_MIRROR: Force device mirror start due to timeout.
Jan 12 17:47:25 webhost02 kernel: GEOM_MIRROR: Cannot update metadata on disk ad4 (error=1).
Jan 12 17:47:25 webhost02 kernel: GEOM_MIRROR: Device mirror: provider ad4 activated.
Jan 12 17:47:25 webhost02 kernel: GEOM_MIRROR: Device mirror: provider mirror/mirror launched.
Jan 12 17:47:25 webhost02 kernel: GEOM_MIRROR: Cannot update metadata on disk ad4 (error=1).
Jan 12 17:47:25 webhost02 kernel: GEOM_MIRROR: Device mirror: provider ad4 disconnected.
Jan 12 17:47:25 webhost02 kernel: GEOM_MIRROR: Device mirror: provider mirror/mirror destroyed.
Jan 12 17:47:25 webhost02 kernel: GEOM_MIRROR: Device mirror destroyed.
Jan 12 17:57:32 webhost02 syslogd: kernel boot file is /boot/kernel/kernel
Subsequent reboots reveal:
Jan 12 17:57:32 webhost02 kernel: GEOM_MIRROR: Device mirror created (id=4216140117).
Jan 12 17:57:32 webhost02 kernel: GEOM_MIRROR: Device mirror: provider ad4 detected.
Jan 12 17:57:32 webhost02 kernel: GEOM_MIRROR: Device gm0s1 created (id=3205827760).
Jan 12 17:57:32 webhost02 kernel: GEOM_MIRROR: Device gm0s1: provider ad6 detected.
Jan 12 17:57:32 webhost02 kernel: GEOM_MIRROR: Device gm0s1: provider ad6 activated.
Jan 12 17:57:32 webhost02 kernel: GEOM_MIRROR: Device gm0s1: provider mirror/gm0s1 launched.
Jan 12 17:57:32 webhost02 kernel: GEOM_MIRROR: Force device mirror start due to timeout.
Jan 12 17:57:32 webhost02 kernel: GEOM_MIRROR: Device mirror: provider ad4 activated.
Jan 12 17:57:32 webhost02 kernel: GEOM_MIRROR: Device mirror: provider mirror/mirror launched.
Jan 12 17:57:32 webhost02 kernel: Mounting root from ufs:/dev/mirror/gm0s1a
Here's my bsdlabels, if that helps:
webhost02# bsdlabel /dev/mirror/gm0s1
# /dev/mirror/gm0s1:
8 partitions:
# size offset fstype [fsize bsize bps/cpg]
a: 524288 0 4.2BSD 2048 16384 32776
b: 4142160 524288 swap
c: 156301424 0 unused 0 0 # "raw" part, don't edit
d: 16777216 4666448 4.2BSD 2048 16384 28552
e: 2097152 21443664 4.2BSD 2048 16384 28552
f: 132755506 23540816 4.2BSD 2048 16384 28552
webhost02# bsdlabel /dev/ad6
# /dev/ad6:
8 partitions:
# size offset fstype [fsize bsize bps/cpg]
a: 524288 0 4.2BSD 2048 16384 32776
b: 4142160 524288 swap
c: 156301424 0 unused 0 0 # "raw" part, don't edit
d: 16777216 4666448 4.2BSD 2048 16384 28552
e: 2097152 21443664 4.2BSD 2048 16384 28552
f: 132755506 23540816 4.2BSD 2048 16384 28552
bsdlabel: partition c doesn't cover the whole unit!
bsdlabel: An incorrect partition c may cause problems for standard system utilities
webhost02# bsdlabel /dev/ad4
bsdlabel: /dev/ad4: no valid label found
Thanks for your help!
--
Regards,
Doug
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