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saisp:labs:05:contents:06 [2014/03/23 20:54]
alexandru.carp
saisp:labs:05:contents:06 [2017/03/27 17:24] (current)
alexandru.carp
Line 1: Line 1:
-==== 06. Integrare DRBD cu Linux-HA ====+==== 06. [BONUS ​10p] Verificare online pentru DRBD ====
  
-Modificati fisierul **/​etc/​ha.d/​haresouces** pe ambele noduri astfel incat daemon-ul Linux-HA sa monteze device-ul **/​dev/​drbd0** in **/​var/​www** atunci cand nodul devine activ: +In configuratia actuala, DRBD nu permite verificare consistentei block-device-urilor fara ca acestea ​sa fie demontate.
-<​code>​ +
-saisp-vm-2 drbddisk::​r0 Filesystem::/​dev/​drbd0::/​var/​www::​ext3 10.0.0.50 apache2 +
-</​code>​+
  
-Restartati serviciul **heartbeat** pe ambele noduri.+Consultati documentatia de aici: https://​docs.linbit.com/​doc/​users-guide-84/​s-use-online-verify/​ 
 +Activati verificarea online pentru resursa definita, apoi porniti o verificare online.
  
-Verificati ca sistemul ​de fisiere ​fost montat corect.+<​note>​ 
 +Dupa activarea verificarii online, s-ar putea sa declansati o situatie ​de tip "​split-brain"​. Pentru ​o remedia, consultati documentatia de aici: https://​docs.linbit.com/​doc/​users-guide-84/​s-resolve-split-brain/​ 
 +</​note>​
  
-**Dupa ce s-a incheiat sincronizarea**,​ creati un fisier **index.html** in **/​var/​www/​html/​** pe nodul **activ** si verificati functionalitatea din browser, la adresa http://​10.0.0.50/​ 
-<​code>​ 
-mkdir /​var/​www/​html/​ 
-echo "DRBD Storage"​ > /​var/​www/​html/​index.html 
-</​code>​ 
- 
-Inchideti serviciul **heartbeat** pe masina virtuala care este nod primar si asteptati ca celalalt nod sa devina activ. Verificati ca storage-ul functioneaza in continuare corect. 
saisp/labs/05/contents/06.1395600844.txt.gz · Last modified: 2014/03/23 20:54 by alexandru.carp
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