Date: Sun, 29 Jun 2003 20:12:06 +0000 From: "Clark C. Evans" <cce@clarkevans.com> To: freebsd-stable@freebsd.org Subject: vinum drive referenced / disklabel inconsistency Message-ID: <20030629201206.GA73157@doublegemini.com>
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I am trying to setup vinum on a box using 4.8 RELENG_4 (as of about a week ago snapshot). This box was running 4.6 /w vinum on same hard drives for the last 4 months wonderfully... but since it is my current 'scratch/backup' box, I just reinstalled with -STABLE. # uname -a FreeBSD polya.axista.com 4.8-STABLE FreeBSD 4.8-STABLE #22: Tue Jun 24 17:01:07 EDT 2003 cce@cantor.local:/usr/obj/usr/src/sys/GENERIC i386 Anyway, my problems seem to be coming from a disklabel issue. Following the instructions in the handbook (for disk addition), I go through the following steps: # dd if=/dev/zero of=/dev/ad2 bs=1k count=1 # fdisk -BI ad2 # disklabel -B -w -r ad2s1 auto And at this point, I use the following to extract the current label, and then I edit it with vi, and then update it: # disklabel ad2s1 > label # vim label # disklabel -R -r ad2s1 label Following is the tail end of the label (I don't edit anything else) where I add 'swap' and 'vinum' partitions: a: 4193280 0 swap c: 156301425 0 unused 0 0 e: 152107200 4193280 vinum The results, when "restoring" the label, however, are inconsistent, with # disklabel ad2s1 # disklabel ad2 # disklabel -r ad2s1 # disklabel -r ad2 # disklabel /dev/ad2s1 # disklabel -r /dev/ad2s1 the results are expected (and identical): <snip/> 8 partitions: # size offset fstype [fsize bsize bps/cpg] a: 4193280 0 swap # (Cyl. 0 - 4159) c: 156301425 0 unused 0 0 # (Cyl. 0 - 155060*) e: 152107200 4193280 vinum # (Cyl. 4160 - 155059) However, for the other two permutations... the results are different: # disklabel /dev/ad2 <snip/> 8 partitions: # size offset fstype [fsize bsize bps/cpg] c: 156301488 0 unused 0 0 # (Cyl. 0 - 155060) # disklabel -r /dev/ad2 disklabel: bad pack magic number (label is damaged, or pack is unlabeled) At this point, I use the following vinum configuration file to setup vinum "vinum create -f vinum.conf" drive d2 device /dev/ad2s1e volume tmp setupstate plex name tmp.2 org concat sd length 2000m drive d2 And this produces... 1 drives: D d2 State: referenced Device Avail: 0/0 MB 1 volumes: V tmp State: down Plexes: 1 Size: 2000 MB 1 plexes: P tmp.2 C State: faulty Subdisks: 1 Size: 2000 MB 1 subdisks: S tmp.2.s0 State: crashed PO: 0 B Size: 2000 MB And of course, this is where I get stuck... With 4.6 I didn't have any of these problems (from the bad pack magic number to the missing device in the vinum state). Anyway, following is the full output from the disklabel. # disklabel -r /dev/ad2s1 # /dev/ad2s1: type: unknown disk: amnesiac label: flags: bytes/sector: 512 sectors/track: 63 tracks/cylinder: 16 sectors/cylinder: 1008 cylinders: 155060 sectors/unit: 156301425 rpm: 3600 interleave: 1 trackskew: 0 cylinderskew: 0 headswitch: 0 # milliseconds track-to-track seek: 0 # milliseconds drivedata: 0 8 partitions: # size offset fstype [fsize bsize bps/cpg] a: 4193280 0 swap # (Cyl. 0 - 4159) c: 156301425 0 unused 0 0 # (Cyl. 0 - 155060*) e: 152107200 4193280 vinum # (Cyl. 4160 - 155059) Thank you for any suggestions you may have, Clark
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