Createirƙiri tsararren diski tare da mdadm !!!!!

Ina gabatar da darasi don ƙirƙirar tsararrun diski ta amfani da aikace-aikacen madam (http://packages.debian.org/squeeze/mdadm).

Abubuwan da ake buƙata don aiwatar dashi shine a sami inji mai inganci Debian Squeeze da aan faya-fayan diski, a cikin waɗannan sharuɗɗan ƙarfin 1 Gb ya isa, tunda abin da za mu yi shi ne aiki tare da matrix, da sauransu, da kuma misali na cike bayanan, shi ma gwaji ne.

A wannan yanayin ƙirƙirar 3, kamar yadda kuke gani a cikin hoton, ban da tsarin ɗaya:

Mun fara na'ura, mun shiga kamar tushe kuma mun shigar da aikace-aikacen:

apt-get install mdadm hdparm
o
apt-get -t squeeze-backports install hdparm mdadm

idan muna da waɗannan wuraren ajiya a cikin bayanan.list

Bayan shigar da aikace-aikacen, zamu ci gaba da shirya diski don haɗawa a cikin matrix:

• Da farko zamu gano su da "fdisk -l"

•  Da zarar an gano fayafai, to sai mu ci gaba da ba shi tsarin da ya dace, don wannan muke amfani da aikace-aikacen cfdisk:

Anan dole ne muyi bayani, dole ne muyi wannan aikin don kowane HDD da muke so mu kasance cikin matrix. Mun fara misali da / dev / sdb:

cfdisk /dev/sdb

•  Mun ba da "Sabo" kuma zaɓi shi a matsayin "Firamare".

• Muna motsawa ta cikin menu kuma mun buga "Rubuta".

•  Domin amfani da bangare a cikin matrix mun canza nau'in tsari (mun rubuta FD).

• Wannan shine yadda ya kamata ya duba:

• Sa'an nan kuma muna adana canje-canje:

•  Muna bincika duk diski tare da fdisk, don tabbatar da cewa ba mu ɓace kowane don shirya ba:

Za mu ci gaba da ƙirƙirar fayil na musamman, za mu kula da shi kamar "toshe" ne:

mknod /dev/md0 b 9 0

Na bayyana, wannan umarnin shine a kirkiro fayiloli «na musamman», lokacin da muka kira shi da saitin «b» sai muce masa yayi shi kamar yana wani shinge, misalin wannan da muke da shi a fayilolin HDD dinmu, yi a ls -lh to sd * kuma zaku ga:

brw-rw - T 1 tushen faifai 8, Jul 0 30 07:04 / dev / sda

Amma menene ma'anar 9 0? Kamar yadda sigar ta kasance mai sauƙi, ga fasalin MAJOR-MINOR, inda 9 shine babban sigar ƙarami 0, don haka a yi magana, ƙaramin yare ne.

Muna duba cewa an halicce shi daidai:

brw-r - r – tushen 1 tushen 9, 0 Jul 30 11:12 / dev / md0

Yanzu zamu iya ƙirƙirar RAID ɗinmu, amma da farko muna buƙatar tambayar kanmu wasu tambayoyi:

• Wace irin aiki matrix za ta yi?
• Shin zan karanta fiye da rubuta masa?
• Shin bayanan da ka adana yana buƙatar ajiyar waje?
• Shin dole ne ya zama akwai sosai?
• Shin ina son iyawa ko tsaro?

Don waɗannan tambayoyin ziyarci Wiki (http://es.wikipedia.org/wiki/RAID), gwargwadon nau'in matrix ɗin da kuka zaɓa shine yadda yakamata ku ci gaba, a cikin wannan koyarwar, zamu ƙirƙiri hari0, akwai nau'i biyu , layi da layi, bambancin da ke cikin layi na diski an cika su a cikin tsari wanda aka kara su a cikin matrix, da kuma zane wanda aka cika fayafai daidai kuma yana da sauri a cikin karanta / rubuta (idan dai girman fayafai daidai yake).

Aiki na Hannu

mdadm -C /dev/md0 -N RAID0-STRIPE --level=stripe --raid-devices=3 /dev/sdc1 /dev/sdd1 /dev/sdb1

Da wannan ne zamu kirkiri matrix din mu, domin shakku «man mdadm»:

mdadm -D /dev/md0

Za mu iya inganta wasu abubuwa, misali idan ka ƙara wani faifan za ka iya samun sa a cikin "martani ta atomatik" don lokacin da wani daga cikin ukun ya gaza, za mu iya yin wannan tare da zaɓi "-x / dev / sdN"; ka tuna cewa zamu iya samun diski da yawa a cikin "SPARE" kamar yadda muke so, HATTARA, gano faya-fayan tare da alamar hehehehehehehe, idan suna da fayafai 10, ta yaya zaka san wanne ya karye? hehehehehe, kar ku bari abu ɗaya ya same su, banda haka, idan matrix ɗin ta yi faci, zai yi wahala a dawo da bayanan daga wannan, shi ya sa tambayoyin da na yi a baya, idan kuna son adanawa, ƙirƙiri RAID5, Hakanan idan ya dame ka faifan, lokacin da SPARE ta fara aiki, tana da ikon sake sabunta bataccen bayanin, wow, mdadm !!! hehehehehehe.

Yaya zai duba:

mdadm -C /dev/md0 -N RAID0-STRIPE --level=stripe --raid-devices=3 /dev/sdc1 /dev/sdd1 /dev/sdb1 -x /dev/sdv1

Yanzu abin da zamu bari shine tsara shi:

mkfs.ext4 /dev/md0

Mun shirya babban fayil don taro:

mkdir /media/raid

Muna hawa:

mount /dev/md0 /media/raid

Duk saitawa, yanzu zamu bincika sararin faifai tare da umarnin df:

Da kyau, mun riga mun shirya matrix ɗin mu don amfani, muna yin gwajin sauri:

hdparm -t /dev/md0

Da kyau, da alama cewa bai kasance mummunan jijijijijiji ba

Mun gama, yanzu na baku labarin yadda zanyi.

To, me za mu samu daga wannan?

R / Duk abin da zaku iya tunani, daga sake amfani da faifai zuwa ajiyar bayanai, da haɗuwa da tsararrun abubuwan da zasu iya yi, akan wiki suna bayyana wasu misalai masu yuwuwa.

Hakanan zamu iya aiwatar da ƙaramar SAN (Cibiyar Sadarwar Yanki), a taƙaice zan bayyana yadda wannan yake aiki:

• Suna da N PCs da saba (duk tare da Debian jijijiji).
• A waɗancan Kwamfutocin an girka software cewa abin da yake yi shine waɗannan N PC ɗin suna da waɗancan rumbun kwamfutocin da ake da su a matsayin ɓangare na cibiyar sadarwa.
• Sabar tana bincikar cibiyar sadarwar kuma ta same su duka, yana kula dasu kamar suna wani ɓangare na kanta, faifan gida.
• Suna yin matrix daga waɗancan fayafai.

Sakamakon: Kundin SUPER na N Teras.

Wannan shi ake kira AoE (ATA over Ethernet), Na bar muku darasi (yana da ƙananan kurakuransa, wataƙila zan sami darasi daga wannan, aikin 100%):

http://www.howtoforge.com/using-ata-over-ethernet-aoe-on-debian-squeeze-initiator-and-target

da sauran takardu:

http://www.howtoforge.com/how-to-build-a-low-cost-san

To, wannan kenan, ina fata zai taimaka muku, don Allah, idan kun ga wani kuskure, to ku yi tsokaci don gyara shi kuma kada ku ba wa sababbin hanyoyin matsala.

CUTA DAGA CUBA !!!!!!