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From: Greg A. Woods (no email)
Date: Tue Jul 11 2006 - 17:46:47 EDT
At Mon, 03 Jul 2006 17:22:07 -0500,
Phil Brutsche wrote:
>
> Søren Schimkat wrote:
> >
> > Which filesystem would you recomend?
>
> ext3, hands down.
Or good old trusty FFS, as the case may be. :-)
(It is more than rock solid, and has been tested for decades on dozens
of different machine architectures and in many radically different kinds
of kernel architectures too.)
Currently the largest spool I manage directly (for a small ISP) looks
like this (it's running NetBSD-1.6_STABLE on a big Alpha with a nice
Apple Xserve RAID):
As you will see block consumption well out-paces inode consumption. If
I remember correctly the various newfs parameters were automatically
calculated from the block/frag numbers specified in the disk label,
which were 16k/2k.
# BLOCKSIZE=16384 df -i /var/spool/imap
Filesyst 16384-blocks Used Avail %Cap iUsed iAvail %iCap Mounted on
/dev/sd5a 66561885 1921235 63975031 2% 1150960 65946638 1% /var/spool/imap
# dumpfs /var/spool/imap | sed 23q
file system: /dev/rsd5a
endian little-endian
magic 11954 time Tue Jul 11 17:39:52 2006
id [ 0 0 ]
cylgrp dynamic inodes 4.4BSD fslevel 3 softdep disabled
nbfree 64626086 ndir 33252 nifree 65946639 nffree 139367
ncg 5242 ncyl 131048 size 536772608 blocks 532495087
bsize 16384 shift 14 mask 0xffffc000
fsize 2048 shift 11 mask 0xfffff800
frag 8 shift 3 fsbtodb 2
cpg 25 bpg 12800 fpg 102400 ipg 12800
minfree 1% optim space maxcontig 4 maxbpg 4096
rotdelay 0ms rps 250
ntrak 128 nsect 128 npsect 128 spc 16384
symlinklen 60 trackskew 0 interleave 1 contigsumsize 4
maxfilesize 0x000400400402ffff
nindir 4096 inopb 128 nspf 4
avgfilesize 16384 avgfpdir 2000
sblkno 8 cblkno 16 iblkno 24 dblkno 824
sbsize 2048 cgsize 16384 offset 32 mask 0xffffff80
csaddr 824 cssize 83968 shift 10 mask 0xfffffc00
cgrotor 0 fmod 0 ronly 0 clean 0x02
blocks available in each of 1 rotational positions
-- Greg A. Woods H:+1 416 218-0098 W:+1 416 489-5852 x122 VE3TCP RoboHack <> Planix, Inc. <> Secrets of the Weird <> ---- Cyrus Home Page: http://asg.web.cmu.edu/cyrus Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
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