Yadda Ake Tsawaita/Rage LVMs (Gudanar da Ma'ana) a cikin Linux - Sashe na II

A baya mun ga yadda ake ƙirƙirar ma'ajiyar diski mai sassauƙa ta amfani da LVM. Anan, zamu ga yadda ake tsawaita rukunin ƙara, ƙarawa da rage ƙarar ma'ana. Anan za mu iya rage ko tsawaita ɓangarori a cikin Gudanar da ƙarar Ma'ana (LVM) wanda kuma ake kira da tsarin fayil mai sassauƙa.

  1. Ƙirƙirar Ma'ajiya Mai Sauƙi tare da LVM - Sashe na I

Wataƙila muna buƙatar ƙirƙirar bangare daban don kowane amfani ko muna buƙatar faɗaɗa girman kowane ɓangaren ƙananan sarari, idan haka ne za mu iya rage girman girman girman ɓangaren kuma za mu iya faɗaɗa ƙananan ɓangaren sararin samaniya cikin sauƙi ta hanyar mai sauƙi mai sauƙi. matakai.

  1. Tsarin Aiki – CentOS 6.5 tare da Shigar LVM
  2. Server IP - 192.168.0.200

Yadda Ake Tsawaita Rukunin Ƙarfafawa da Rage Ƙarfin Hankali

A halin yanzu, muna da PV guda ɗaya, VG da 2 LV. Bari mu jera su daya bayan daya ta amfani da umarni masu zuwa.

# pvs
# vgs
# lvs

Babu sarari kyauta a cikin Ƙarfin Jiki da Ƙarfafa. Don haka, yanzu ba za mu iya tsawaita girman lvm ba, don tsawaita muna buƙatar ƙara ƙarar jiki ɗaya (PV), sannan sai mu tsawaita rukunin ƙara ta hanyar ƙara vg b>. Za mu sami isasshen sarari don tsawaita girman girman ma'ana. Don haka da farko za mu ƙara ƙarar jiki ɗaya.

Don ƙara sabon PV dole ne mu yi amfani da fdisk don ƙirƙirar ɓangaren LVM.

# fdisk -cu /dev/sda

  1. Don Ƙirƙirar sabon bangare Danna n.
  2. Zaɓi ɓangaren farko amfani p.
  3. Zaɓi adadin ɓangaren da za a zaɓa don ƙirƙirar ɓangaren farko.
  4. Latsa 1 idan akwai sauran diski.
  5. Canja nau'in ta amfani da t.
  6. Buga 8e don canza nau'in bangare zuwa Linux LVM.
  7. Yi amfani da p don buga ɓangaren ƙirƙira (a nan ba mu yi amfani da zaɓi ba).
  8. Latsa w don rubuta canje-canje.

Sake kunna tsarin da zarar an gama.

Yi lissafin kuma duba ɓangaren da muka ƙirƙira ta amfani da fdisk.

# fdisk -l /dev/sda

Na gaba, ƙirƙiri sabon PV (Ƙarar Jiki) ta amfani da umarni mai zuwa.

# pvcreate /dev/sda1

Tabbatar da pv ta amfani da umarnin da ke ƙasa.

# pvs

Ƙara wannan pv zuwa vg_tecmint vg don tsawaita girman rukunin ƙara don samun ƙarin sarari don faɗaɗa lv.

# vgextend vg_tecmint /dev/sda1

Bari mu duba girman Rukunin Ƙarar da muke amfani da shi yanzu.

# vgs

Har ma muna iya ganin waɗanne PV ake amfani da su don ƙirƙirar ƙungiyar ƙarar ta amfani da su.

# pvscan

Anan, zamu iya ganin ƙungiyoyin ƙarar suna ƙarƙashin Wadanne Juzu'i na Jiki. Mun ƙara pv ɗaya kuma kyauta gaba ɗaya. Bari mu ga girman kowane kundi na hankali da muke da shi a halin yanzu kafin fadada shi.

  1. LogVol00 da aka ayyana don Musanya.
  2. LogVol01 an ayyana shi don /.
  3. Yanzu muna da girman 16.50 GB don/(tushen).
  4. A halin yanzu akwai 4226 Physical Extend (PE) samuwa.

Yanzu za mu fadada ɓangaren / LogVol01. Bayan fadadawa zamu iya lissafa girman kamar yadda yake sama don tabbatarwa. Za mu iya tsawaita ta amfani da GB ko PE kamar yadda na bayyana shi a cikin LVM PART-I, a nan ina amfani da PE don tsawaita.

Don samun samuwan girman Girman Ƙarfafa Jiki.

# vgdisplay

Akwai 4607 PE kyauta = 18GB Akwai sarari kyauta. Don haka za mu iya faɗaɗa ƙarar hikimar mu har zuwa 18GB ƙari. Bari mu yi amfani da girman PE don tsawaita.

# lvextend -l +4607 /dev/vg_tecmint/LogVol01

Yi amfani da + don ƙara ƙarin sarari. Bayan Extending, muna buƙatar sake girman tsarin fayil ta amfani da.

# resize2fs /dev/vg_tecmint/LogVol01

  1. Umurnin da ake amfani da shi don tsawaita ƙarar ma'ana ta amfani da tsawo na jiki.
    2. Anan zamu iya ganin an tsawaita shi zuwa 34GB daga 16.51GB.
  2. Sake girman tsarin fayil, Idan tsarin fayil ɗin ya hau kuma a halin yanzu ana amfani da shi.
  3. Don tsawaita juzu'i masu ma'ana ba ma buƙatar cire tsarin fayil ɗin.

Yanzu bari mu ga girman sake girman girman ma'ana ta amfani da shi.

# lvdisplay

  1. LogVol01 an ayyana don/tsawaita ƙara.
  2. Bayan tsawaita akwai 34.50GB daga 16.50GB.
  3. Tsarin da ake yi yanzu, kafin a tsawaita akwai 4226, mun ƙara 4607 don faɗaɗa gabaɗaya 8833.

Yanzu idan muka duba vg da ke akwai PE kyauta zai zama 0.

# vgdisplay

Dubi sakamakon tsawaitawa.

# pvs
# vgs
# lvs

  1. An ƙara sabon ƙarar Jiki.
  2. Ƙungiyar Vg_tecmint ta ƙara daga 17.51GB zuwa 35.50GB.
  3. Logical girma LogVol01 ya tsawaita daga 16.51GB zuwa 34.50GB.

Anan mun kammala aiwatar da tsawaita rukunin girma da kundin ma'ana. Bari mu matsa zuwa wani yanki mai ban sha'awa a cikin sarrafa ƙarar ma'ana.

A nan za mu ga yadda za a rage ma'auni Volume. Kowa ya ce yana da mahimmanci kuma yana iya ƙarewa da bala'i yayin da muke rage lvm. Rage lvm yana da ban sha'awa sosai fiye da kowane bangare a cikin sarrafa ƙarar ma'ana.

  1. Kafin farawa, yana da kyau koyaushe a yi ajiyar bayanan, don kada ya zama ciwon kai idan wani abu ya ɓace.
  2. Don Rage ƙarar ma'ana akwai matakai 5 da ake buƙatar yin su a hankali.
  3. Yayin da muke ƙara ƙara za mu iya tsawaita shi yayin da ƙarar ke ƙarƙashin matsayi (online), amma don ragewa dole ne mu cire tsarin fayil ɗin kafin a rage.

Bari mu faɗi menene matakan 5 na ƙasa.

  1. cuɗe tsarin fayil don ragewa.
  2. Duba tsarin fayil bayan cirewa.
  3. Rage tsarin fayil.
  4. Rage Girman Ƙaƙƙarfan Ƙaƙwalwa fiye da Girman Yanzu.
  5. Sake bincika tsarin fayil don kuskure.
  6. Sake kunna tsarin fayil zuwa mataki.

Don nunawa, Na ƙirƙiri rukunin ƙara daban da ƙarar ma'ana. Anan, zan rage girman ma'ana tecmint_reduce_test. Yanzu girmansa shine 18GB. Muna buƙatar rage shi zuwa 10GB ba tare da asarar bayanai ba. Ma'ana muna buƙatar rage 8GB daga cikin 18GB. Tuni akwai 4GB bayanai a cikin ƙarar.

18GB ---> 10GB

Yayin rage girman, muna buƙatar rage 8GB kawai don haka zai tattara zuwa 10GB bayan an rage.

# lvs

Anan zamu iya ganin bayanan tsarin fayil.

# df -h

  1. Girman Girman shine 18GB.
  2. Tuni yana amfani da har zuwa 3.9GB.
  3. Sauran sarari shine 13GB.

Da farko zazzage wurin dutsen.

# umount -v /mnt/tecmint_reduce_test/

Sannan bincika kuskuren tsarin fayil ta amfani da umarni mai zuwa.

# e2fsck -ff /dev/vg_tecmint_extra/tecmint_reduce_test

Lura: Dole ne ya wuce a cikin kowane matakai 5 na duba tsarin fayil idan ba haka ba za a iya samun matsala tare da tsarin fayil ɗin ku.

Na gaba, rage tsarin fayil.

# resize2fs /dev/vg_tecmint_extra/tecmint_reduce_test 10GB

Rage ƙarar hankali ta amfani da girman GB.

# lvreduce -L -8G /dev/vg_tecmint_extra/tecmint_reduce_test

Don Rage Ƙarfin Ma'ana ta amfani da Girman PE muna buƙatar sanin girman tsoho girman PE da jimillar girman PE na Ƙungiya mai girma don sanya ƙaramin lissafi don daidai Rage girman.

# lvdisplay vg_tecmint_extra

Anan muna buƙatar yin ɗan lissafi kaɗan don samun girman PE na 10GB ta amfani da umarnin bc.

1024MB x 10GB = 10240MB or 10GB

10240MB / 4PE = 2048PE

Latsa CRTL+D don fita daga BC.

Rage girman ta amfani da PE.

# lvreduce -l -2048 /dev/vg_tecmint_extra/tecmint_reduce_test

Sake girman tsarin fayil baya, A cikin wannan matakin idan akwai wani kuskure wanda ke nufin mun lalata tsarin fayil ɗin mu.

# resize2fs /dev/vg_tecmint_extra/tecmint_reduce_test

Hana tsarin fayil ɗin baya zuwa wuri guda.

# mount /dev/vg_tecmint_extra/tecmint_reduce_test /mnt/tecmint_reduce_test/

Duba girman bangare da fayiloli.

# lvdisplay vg_tecmint_extra

Anan zamu iya ganin sakamako na ƙarshe yayin da aka rage girman ma'ana zuwa girman 10GB.

A cikin wannan labarin, mun ga yadda za a tsawaita ƙungiyar ƙararrawa, ƙarar ma'ana da rage girman ma'ana. A kashi na gaba (Sashe na III), za mu ga yadda ake ɗaukar Hoton Ɗaukar Ma'ana da mayar da shi zuwa mataki na farko.