Editing Adaugare Disk (section)

=== Montarea diskurilor la nivel de system de operare ===
Pentru inserarea disk-urilor in systemul de operare vom creea doua directoare si vom edita fstab astfel incat cele doua discuri sa fie montate automat de catre OS in cazul lnui restart

==== Creeare directoare ====

Discurile vor fi adaugate in directorul /wiki, subdirectoarele lv1 respectiv lv2:

<code class="mw-code mw-highlight plainlinks" style="display:block"><!--
-->&#32;# mkdir /wiki
&#32;# mkdir /wiki/lv1
&#32;# mkdir /wiki/lv2
</code>

Structura rezultata fiind urmatoarea:

<code class="mw-code mw-highlight plainlinks" style="display:block"><!--
--># tree /wiki/
&#32;/wiki/
&#32; ├── lv1
&#32; └── lv2
&#32;2 directories, 0 files
</code>

==== Colectare informatii despre partitii ====

In fisierul de boot fstab, partiile pot fi montate in funtie de:

PATH

<code class="mw-code mw-highlight plainlinks" style="display:block"><!--
-->&#32;# <span style="color:#f00">'''ll /dev/vg_wiki/lv_wiki_1'''</span>
&#32;lrwxrwxrwx 1 root root 7 Apr 14 15:56 /dev/vg_wiki/lv_wiki_1 -> ../dm-1
&#32;# <span style="color:#f00">'''ll /dev/vg_wiki/lv_wiki_2'''</span>
&#32;lrwxrwxrwx 1 root root 7 Apr 14 15:56 /dev/vg_wiki/lv_wiki_2 -> ../dm-2
</code>

MAPPER

<code class="mw-code mw-highlight plainlinks" style="display:block"><!--
-->&#32;# <span style="color:#f00">'''ll /dev/mapper/vg_wiki-lv_wiki_1'''</span>
&#32;lrwxrwxrwx 1 root root 7 Apr 14 15:56 /dev/mapper/vg_wiki-lv_wiki_1 -> ../dm-1
&#32;# <span style="color:#f00">'''ll /dev/mapper/vg_wiki-lv_wiki_2'''</span>
&#32;lrwxrwxrwx 1 root root 7 Apr 14 15:56 /dev/mapper/vg_wiki-lv_wiki_2 -> ../dm-2
</code>

DISK ID

Facem o noua listare pentru a fi siguri ca partitia a fost adaugata:
<code class="mw-code mw-highlight plainlinks" style="display:block"><!--
-->&#32;# <span style="color:#f00">'''blkid /dev/mapper/vg_wiki-lv_wiki_1'''</span>
&#32;/dev/mapper/vg_wiki-lv_wiki_1: UUID="da82776f-41ba-453d-a7c6-4e6ca5b48164" BLOCK_SIZE="4096" TYPE="ext4"
&#32;# <span style="color:#f00">'''blkid /dev/mapper/vg_wiki-lv_wiki_2'''</span>
&#32;/dev/mapper/vg_wiki-lv_wiki_2: UUID="129fbbee-e190-4a49-aa8f-ebdffb56c7bb" BLOCK_SIZE="4096" TYPE="ext4"
</code>

==== Montare partitii ====

In acest stadiu putem deja monta petitiile in systemul de operare folosind comenzile:
<code class="mw-code mw-highlight plainlinks" style="display:block"><!--
-->&#32;# mount /dev/mapper/vg_wiki-lv_wiki_1 /wiki/lv1
&#32;# mount /dev/mapper/vg_wiki-lv_wiki_2 /wiki/lv2
</code>

Pentru ca montarea sa se executa automat in cazul unui restart vom edita fisierul fstab:

<code class="mw-code mw-highlight plainlinks" style="display:block"><!--
-->nano /etc/fstab
</code>

Aici vom adauga mount-pointurile in functie de modul in care se doreste:

<code class="mw-code mw-highlight plainlinks" style="display:block"><!--
-->### mapare dupa path
/dev/vg_wiki/lv_wiki_1	/wiki/lv1	ext4	defaults	0	1
/dev/vg_wiki/lv_wiki_2	/wiki/lv2	ext4	defaults	0	1
</code>

<code class="mw-code mw-highlight plainlinks" style="display:block"><!--
-->### mapare conform mapper
/dev/mapper/vg_wiki-lv_wiki_1	/wiki/lv1	ext4	defaults	0	1
/dev/mapper/vg_wiki-lv_wiki_2	/wiki/lv2	ext4	defaults	0	1
</code>

<code class="mw-code mw-highlight plainlinks" style="display:block"><!--
-->### mapare dupa id-ul disk-ului
UUID=da82776f-41ba-453d-a7c6-4e6ca5b48164	/wiki/lv1	ext4	defaults	0	1
UUID=129fbbee-e190-4a49-aa8f-ebdffb56c7bb	/wiki/lv2	ext4	defaults	0	1
</code>

Daca nu am montat deja partitiile manual vom face montarea partitiilor folosind comanda:

<code class="mw-code mw-highlight plainlinks" style="display:block"><!--
--># mount -a
</code>

La final vom avea o structura de disk-uri asemanatoare cu:

<code class="mw-code mw-highlight plainlinks" style="display:block"><!--
--># df -h
Filesystem                         Size  Used Avail Use% Mounted on
.....
/dev/mapper/ubuntu--vg-ubuntu--lv   18G  5.7G   12G  34% /
/dev/mapper/vg_wiki-lv_wiki_1      5.9G   24K  5.6G   1% /wiki/lv1
/dev/mapper/vg_wiki-lv_wiki_2      3.9G   24K  3.7G   1% /wiki/lv2
.....
</code>