Vinum gvinum ja geom

vinum

Starting up Vinum Early Enough for the Root Filesystem /boot/loader.conf vinum_load="YES"

fdisk -i teha disklabel -w disklabel -e devname

a: 1024000 281 4.2BSD 2048 16384 0 b: 16 vinum

stripe

  drive c device /dev/da5h
   drive d device /dev/da6h
   volume stripe
   plex org striped 512k
     sd length 128m drive c
     sd length 128m drive d

mirroring

drive d1 device /dev/ad2s1a drive d2 device /dev/ad3s1a volume mirror setupstate

 plex org concat
   sd length 76000M drive d1
 plex org concat
   sd length 76000M drive d2

gvinum create -f /etc/vinum.conf

hiljem newfs -v

////////////////////////////////////////////////

kõige alguses fdisk -i ketas

  105  13:53   fdisk /dev/da1
  106  13:54   fdisk /dev/da2
  107  13:54   fdisk /dev/da3
  108  13:54   fdisk /dev/da4
  109  13:54   fdisk /dev/da5
  110  13:54   disklabel /dev/da1s1
  111  13:54   disklabel /dev/da2s1
  112  13:54   disklabel /dev/da3s1
  113  13:54   disklabel /dev/da4s1
  114  13:54   disklabel -w /dev/da1s1
  115  13:54   disklabel /dev/da1s1
  116  13:55   disklabel -w /dev/da2s1
  117  13:55   disklabel -w /dev/da3s1
  118  13:55   disklabel -w /dev/da4s1
  119  13:55   disklabel -e /dev/da1s1
  120  13:55   disklabel /dev/da1s1
  121  13:55   disklabel /dev/da2s1
  122  13:55   disklabel /dev/da3s1
  123  13:56   disklabel /dev/da4s1

1. /dev/da1s1:

8 partitions:

1. size offset fstype [fsize bsize bps/cpg]

 a: 35840936       16    unused        0     0
 c: 35840952        0    unused        0     0         # "raw" part, don't edit

muuda a ümber b'ks, size kõige väiksema ketta järgi ja fstype vinum

kui midagi läheb sassi

dd if=/dev/zero of=/dev/da1 bs=1024 count=2048

lihtsalt kirjutada kaks mega ketta algusesse nulle

mate

gvinum l -rv root

Volume root: Size: 268435456 bytes (256 MB)

               State: up

Plex root.p3: Size: 268435456 bytes (256 MB)

volume root 268435456 / 512 + 16=281

plex root 268435456 /512 = 524288

1. size offset fstype [fsize bsize bps/cpg]

 a:   524288      281    4.2BSD     2048 16384     0
 b: 35840936       16     vinum
 c: 35840952        0    unused        0     0         # "raw" part, don't edit

testida saab fsck -n /dev/da1s1a

konfiguratsioon

drive a device /dev/da1s1b drive b device /dev/da2s1b drive c device /dev/da3s1b drive d device /dev/da4s1b

volume root

 plex org concat
  sd length 256m drive a
 plex org concat
  sd length 256m drive b
 plex org concat
  sd length 256m drive c
 plex org concat
  sd length 256m drive d

volume swap

 plex org striped 272k
  sd length 512m drive a
  sd length 512m drive b
 plex org striped 272k
  sd length 512m drive c
  sd length 512m drive d

volume usr

 plex org striped 272k
  sd length 1024m drive a
  sd length 1024m drive b
 plex org striped 272k
  sd length 1024m drive c
  sd length 1024m drive d

volume var

 plex org striped 272k
  sd length 512m drive a
  sd length 512m drive b
 plex org striped 272k
  sd length 512m drive c
  sd length 512m drive d

volume home

 plex org striped 272k
  sd drive a
  sd drive b
 plex org striped 272k
  sd drive c
  sd drive d

newfs ketastele veel süsteem ketastele

gvinum root mountida dumbime juursüsteemi cd /mnt dump -0 -C 8 -f - -L / | restore -r -f -

mount /dev/gvinum/usr /mnt/usr mount /dev/gvinum/var/mnt/var

cd usr/ dump -0 -C 8 -f - -L /usr | restore -r -f -

järgmisena /var

paigaldada grub

//laseb kirjutada tööajal bootsektorit sysctl kern.geom.debugflags=16

/boot/loader.conf grub start

geom_vinum_load="YES" vinum.autostart="YES"

muudame fstab'i

1. Device Mountpoint FStype Options Dump Pass#

/dev/gvinum/swap none swap sw 0 0 /dev/gvinum/root / ufs rw 1 1 /dev/gvinum/usr /usr ufs rw 2 2 /dev/gvinum/var /var ufs rw 2 2 /dev/gvinum/home /home ufs rw 2 2 /dev/acd0 /cdrom cd9660 ro,noauto 0 0 proc /proc procfs rw 0 0

//lülitab softupdate sisse ...metainfo kirjutamise kohta tunefs -n /enable /dev/gvinum/usr tunefs -n /enable /dev/gvinum/var

grubikonf teha muuda bootivaks kõik kettad ehk siis

root (hd4,0,a) setup(hd4)

peale bootimist tuleb grub üles

root (hd0,0,a) kernel /boot/loader sym /boot/grub/menu.lst

timeout 20 default 0 fallback 2

title FreeBSD 1. kettalt root (hd0,0,a) kernel /boot/loader

title FreeBSD 2. kettalt root (hd1,0,a) kernel /boot/loader

title FreeBSD 3. kettalt root (hd2,0,a) kernel /boot/loader

title FreeBSD 4. kettalt root (hd3,0,a) kernel /boot/loader

gstripe

kldload geom_mirror

/boot/loader.conf
geom_stripe_load="YES" 

    gstripe label -v -s 4096 data /dev/ad2 /dev/ad4
    newfs /dev/stripe/data
    mount /dev/stripe/data /mnt/tank2
    df -h
    /dev/stripe/data    289G    4.0K    266G     0%    /mnt/tank2

   cat /var/run/dmesg.boot | grep "ad"
   gstripe list
   umount /dev/stripe/data
   tunefs -m 2 -o space /dev/stripe/data
tunefs: minimum percentage of free space changes from 8% to 2%
tunefs: should optimize for space with minfree < 8%
tunefs: optimization preference changes from time to space

   mount /dev/stripe/data /mnt/tank2
   /dev/stripe/data    289G    4.0K    283G     0%    /mnt/tank2

-m 2 ütleb, et minfree peaks 2% olema ja -o space optimiseerib space'le, mitte access time'le aga kiiremat kaablit vaja, udma33 sucks ASS

fsck_ffs /dev/stripe/data

mirror

katse# gmirror label -vnb round-robin gm0 /dev/da1
Metadata value stored on /dev/da1.
Done.
katse# gmirror load
katse# gmirror insert gm0 /dev/da2