On 08/02/15 06:21, Michael van Elst wrote:
wam%hiwaay.net@localhost ("William A. Mahaffey III") writes:Thanks for your reply. I just checked & I did apparently setup the RAID correctly w/ sectPerSU = 32. Can I use dumpfs to recover FS info from a mounted, active FS (man page doesn't say either way, tunefs page says it *won't* work on mounted FS) ? TIA & thanks again.dumpfs will obviously show information that might be changing, but the geometry information is static, so that's ok. tunefs won't work because it just manipulates on-disk data, it doesn't tell the filesystem about it. Some values you can change and activating them at the next mount. Some values you can only change while unmounted, because the living filesystem overwrites them.
Hmmmm .... OK, I did the dumpfs & got the following from the 1st 28 lines, header info:
file system: /dev/rdk0
format FFSv2
endian little-endian
location 65536 (-b 128)
magic 19540119 time Mon Aug 3 10:55:57 2015
superblock location 65536 id [ 5593845d ee5eb3c ]
cylgrp dynamic inodes FFSv2 sblock FFSv2 fslevel 5
nbfree 90486820 ndir 63184 nifree 230985751 nffree 5694
ncg 4964 size 943207067 blocks 928593007
bsize 32768 shift 15 mask 0xffff8000
fsize 4096 shift 12 mask 0xfffff000
frag 8 shift 3 fsbtodb 3
bpg 23753 fpg 190024 ipg 46848
minfree 5% optim time maxcontig 2 maxbpg 4096
symlinklen 120 contigsumsize 2
maxfilesize 0x000800800805ffff
nindir 4096 inopb 128
avgfilesize 16384 avgfpdir 64
sblkno 24 cblkno 32 iblkno 40 dblkno 2968
sbsize 4096 cgsize 32768
csaddr 2968 cssize 81920
cgrotor 0 fmod 0 ronly 0 clean 0x02
wapbl version 0x1 location 2 flags 0x0
wapbl loc0 3773140352 loc1 131072 loc2 512 loc3 3
flags wapbl
fsmnt /home
volname swuid 0
cs[].cs_(nbfree,ndir,nifree,nffree):
I see a bsize of 32K, twice that of the RAID (I think), problem ?
--
William A. Mahaffey III
----------------------------------------------------------------------
"The M1 Garand is without doubt the finest implement of war
ever devised by man."
-- Gen. George S. Patton Jr.