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en:procedure:materiel:cluster [04/01/2019 10:33] jdesouza [DESCRIPTION OF THE CONFIGURATION FILE] |
en:procedure:materiel:cluster [04/01/2019 10:40] (current) jdesouza [Connection schema] |
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| //The 2 servers are connected to each other by a link allowing to have the servers in 2 different and distant technical premises to ensure the physical integrity of the equipment and the non-propagation of a physical damage on one of the two rooms.// | //The 2 servers are connected to each other by a link allowing to have the servers in 2 different and distant technical premises to ensure the physical integrity of the equipment and the non-propagation of a physical damage on one of the two rooms.// | ||
| - | ===== CONNECTION SCHEMA ===== | + | ===== Connection schema ===== |
| - | {{ObjectReplacements/Object 1}} | + | {{:faq:materiel:schema_raccordement.png?1000|}} |
| ===== Functioning of the cluster ===== | ===== Functioning of the cluster ===== | ||
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| ===== Checking the synchronization of cluster data ===== | ===== Checking the synchronization of cluster data ===== | ||
| - | In a terminal or by ssh access on one of the cluster nodes use the "drbd-overview" command | + | In a terminal or by ssh access on one of the cluster nodes use the ''drbd-overview'' command |
| {{cluster_Image_3.png}} | {{cluster_Image_3.png}} | ||
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| ''=> the 2 servers are "online", and each service is operational on the primary.'' | ''=> the 2 servers are "online", and each service is operational on the primary.'' | ||
| - | ===== VERIFYING THE CORRECT FUNCTIONING OF THE CLUSTER ===== | + | ===== Verifying the correct functioning of the cluster ===== |
| See the cluster configuration, use the following command: | See the cluster configuration, use the following command: | ||
| - | # crm configure show | + | ''# crm configure show'' |
| - | Example of a configuration file of the Abidjan cluster: | + | __Example of a configuration file of the Abidjan cluster:__ |
| {{cluster_Image_6.png}} | {{cluster_Image_6.png}} | ||
| - | COmmands FOR VERIFYING THE CORRECT FUNCTIONING OF THE CLUSTER | + | ===== Commands for verifying the correct functioning of the cluster ===== |
| - | for example « abjairsvr2 » | + | **for example « abjairsvr2 »** |
| |DESIRED Action |SYSTEM Command| | |DESIRED Action |SYSTEM Command| | ||
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| |Check that the configuration files are identical between the nodes of a server| crm cluster diff /etc/samba/smb.conf| | |Check that the configuration files are identical between the nodes of a server| crm cluster diff /etc/samba/smb.conf| | ||
| - | =====VERIFICATION OF CLUSTER MANAGEMENT TOOLS ===== | + | ===== Verification of cluster management tools ===== |
| |DESIRED Action |SYSTEM Commands| | |DESIRED Action |SYSTEM Commands| | ||