Date: Thu, 4 Aug 2005 12:01:11 +0200 (CEST) From: Anders Gytri <gytri@elkraft.ntnu.no> To: freebsd-questions@freebsd.org Cc: Anders Gytri <gytri@elkraft.ntnu.no> Subject: Strange disklabel Message-ID: <20050804111853.D4165@thebe.elkraft.ntnu.no>
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I have recently installed a big disk (1.4 TB sata raid with scsi
interface) on an i386 computer running FreeBSD 5.4-RELEASE-p1. I have 3
partitions on the FreeBSD slice. The disk is working OK, but the disklabel
seem a little strange. For one of the partitions the "fsize bsize bps/cpg"
values are "0 0 0". For the other two partitions these values are
"2048 16384 28552" which I beleve is more normal. The filesystem is
initialized (with newfs). fsck gives no errors.
Partial or full output from the commands "dmesg", "df", "mount", "fdisk
da1", "bsdlabel -A da1s1", "tunefs -p /dev/da1s1e", "fsck /dev/da1s1e" and
"dumpfs /dev/da1s1e" is attached below.
Should I worry about this, or can I ignore it.
Anders Gytri
-----------------------------------------------------
# dmesg
da1 at ahd0 bus 0 target 0 lun 0
da1: <DEFANGED_IFT A08U-G2421 342D> Fixed Direct Access SCSI-3 device
da1: 160.000MB/s transfers (80.000MHz, offset 127, 16bit), Tagged Queueing
Enabled
da1: 1429284MB (2927173632 512 byte sectors: 255H 63S/T 182208C)
-----------------------------------------------------
# df
Filesystem 1K-blocks Used Avail Capacity Mounted on
/dev/da1s1e 507788836 47657476 419508254 10% /home
-----------------------------------------------------
# mount
/dev/da1s1e on /home (ufs, NFS exported, local, soft-updates)
-----------------------------------------------------
# fdisk da1
******* Working on device /dev/da1 *******
parameters extracted from in-core disklabel are:
cylinders=182208 heads=255 sectors/track=63 (16065 blks/cyl)
Figures below won't work with BIOS for partitions not in cyl 1
parameters to be used for BIOS calculations are:
cylinders=182208 heads=255 sectors/track=63 (16065 blks/cyl)
Media sector size is 512
Warning: BIOS sector numbering starts with sector 1
Information from DOS bootblock is:
The data for partition 1 is:
sysid 165 (0xa5),(FreeBSD/NetBSD/386BSD)
start 63, size 2927171457 (1429282 Meg), flag 80 (active)
beg: cyl 0/ head 1/ sector 1;
end: cyl 959/ head 254/ sector 63
The data for partition 2 is:
<DEFANGED_UNUSED>
The data for partition 3 is:
<DEFANGED_UNUSED>
The data for partition 4 is:
<DEFANGED_UNUSED>
-----------------------------------------------------
# bsdlabel -A da1s1
# /dev/da1s1:
type: unknown
disk: amnesiac
label:
flags:
bytes/sector: 512
sectors/track: 63
tracks/cylinder: 255
sectors/cylinder: 16065
cylinders: 182207
sectors/unit: 2927171457
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]
c: 2927171457 0 unused 0 0 # "raw" part,
don't edit
d: 209715200 0 4.2BSD 2048 16384 28552
e: 1048576000 209715200 4.2BSD 0 0 0
f: 1668880257 1258291200 4.2BSD 2048 16384 28552
-----------------------------------------------------
# tunefs -p /dev/da1s1e
tunefs: ACLs: (-a) disabled
tunefs: MAC multilabel: (-l) disabled
tunefs: soft updates: (-n) enabled
tunefs: maximum blocks per file in a cylinder group: (-e) 2048
tunefs: average file size: (-f) 16384
tunefs: average number of files in a directory: (-s) 64
tunefs: minimum percentage of free space: (-m) 8%
tunefs: optimization preference: (-o) time
tunefs: volume label: (-L)
-----------------------------------------------------
# fsck /dev/da1s1e
** /dev/da1s1e
** Last Mounted on /home
** Phase 1 - Check Blocks and Sizes
** Phase 2 - Check Pathnames
** Phase 3 - Check Connectivity
** Phase 4 - Check Reference Counts
** Phase 5 - Check Cyl groups
36339 files, 23828738 used, 230065680 free (712 frags, 28758121 blocks,
0.0% fragmentation)
-----------------------------------------------------
# dumpfs /dev/da1s1e
magic 19540119 (UFS2) time Thu Aug 4 10:32:28 2005
superblock location 65536 id [ 42a2003d 11af58d9 ]
ncg 2787 size 262144000 blocks 253894418
bsize 16384 shift 14 mask 0xffffc000
fsize 2048 shift 11 mask 0xfffff800
frag 8 shift 3 fsbtodb 2
minfree 8% optim time symlinklen 120
maxbsize 16384 maxbpg 2048 maxcontig 8 contigsumsize 8
nbfree 28758121 ndir 423 nifree 65603083 nffree 712
bpg 11761 fpg 94088 ipg 23552
nindir 2048 inopb 64 maxfilesize 140806241583103
sbsize 2048 cgsize 16384 csaddr 3000 cssize 45056
sblkno 40 cblkno 48 iblkno 56 dblkno 3000
cgrotor 1939 fmod 0 ronly 0 clean 1
avgfpdir 64 avgfilesize 16384
flags soft-updates
fsmnt /home
volname swuid 0
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