ot margy(5-09-2007)
reiting (24)
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 Variant za otpechatvane
Instalira se operatsionnata sistema na ediniiat ot diskovete.
Nakraia ne se restartira, a se izliza s alt+f4 Izpulniava se
slednata posledovatelnost ot komandi:
sysctl kern.geom.debugflags=16
gmirror label -v -b round-robin gm0 /dev/ad4
gm0 e noviiat mirror disk, a /dev/ad4 e diskut na koito e
instalirana operatsionnata sistema. Za da se initsializira
sistemata pri startirane:
echo geom_mirror_load="YES" >
/boot/loader.conf
i v /etc/fstab se promenia: ad na gm, i se dobavia mirror
sled /dev. Primer:
/dev/ad4s1a -> /dev/mirror/gm0s1a.
Proveriavat se promenite i se restartira mashinata.
V sluchai na nekorektno vuvedena informatsiia v /etc/fstab,
ustroistvata niama da budat montirani. Pokazva se slednoto
suobshtenie
Mounting root from ufs:/dev/gm0s1a
setrootbyname failed
ffs_mountroot: can't find rootvp
Root mount failed: 6
Manual root filesystem specification:
<fstype>:<device> Mount
<device> using filesystem <fstype>
e.g.
ufs:da0s1a
? List
valid disk boot devices
<empty line> Abort manual
input
mountroot>
S vuprositelna se pokazvat ustroistvata, koito mogat da se
montirat
mountroot> ?
List of GEOM managed disk devices:
mirror/gm0s1f mirror/gm0s1e mirror/gm0s1d
mirror/gm0s1c mirror/gm0s1b
mirror/gm0s1a mirror/gm0s1 ad2s1 mirror/gm0 ad0s1 ad2 acd0
ad0 fd0
Montira se / diala i se korigira /etc/fstab. Restartira se i
se produlzhava.
Dobavia se vtoriia disk:
gmirror insert gm0 /dev/ad5
Za da vidim rezultata:
gmirror list | more
Geom name: gm0
State: DEGRADED
Components: 2
Balance: round-robin
Slice: 4096
Flags: NONE
GenID: 0
SyncID: 1
ID: 2125638583
Providers:
1. Name: mirror/gm0
Mediasize: 10262568448 (9.6G)
Sectorsize: 512
Mode: r6w5e2
Consumers:
1. Name: ad4
Mediasize: 10262568448 (9.6G)
Sectorsize: 512
Mode: r1w1e1
State: ACTIVE
Priority: 0
Flags: DIRTY
GenID: 0
SyncID: 1
ID: 3986018406
2. Name: ad5
Mediasize: 10262568448 (9.6G)
Sectorsize: 512
Mode: r1w1e1
State: SYNCHRONIZING
Priority: 0
Flags: DIRTY, SYNCHRONIZING
GenID: 0
SyncID: 1
Synchronized: 1%
ID: 1946262342
ili
gmirror status
Pri otpadane na disk. Ako se dobavi nov disk i toi e sus
sushtoto oboznachenie(tova znachi diskut da se slozhi na sushtiia
ATA/SATA/RAID kanal) napr. /dev/ad5, sled startirane na
sistemata, zapochva avtomatichna sinhronizatsiia. Ako
oboznachenieto e razlichno ot tova na izgoreliia disk napr.
/dev/ad6, se izpulniavat slednite komandi:
gmirror forget data
gmirror insert gm0 /dev/ad6
Protsedurata raboti.
Po-goliamata chast ot materiala e prevod ot slednite
statii:
http://www.onlamp.com/pub/a/bsd/2005/11...
http://software.pmade.com/admintools/ar...
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