304-200 Exam Dumps - LPI Level 3 Exam 304

A security resource in order to permit other cluster services to access the data on the DRBD device.

A health resource in order to check the integrity of the file system.

A file system resource to mount the device.

A replication resource that synchronizes the DRBD device's data to all nodes that may take over the device after a failover.

A constraint to ensure the device is mounted before the dependent services are started.

Each GFS2 filesystem has exactly one journal.

Once a GFS2 filesystem is created, the number of journals cannot be changed.

Every node that simultaneously mounts the filesystem requires its own GFS2 journal.

Journals were heavily used in GFS and are deprecated and optional in GFS2.

The GFS Cluster Journal Daemon, GCJD, handles the journaling in a GFS2 cluster.

cat /proc/drdb/status

cat /proc/drdb

drbdadm dstate all

drbdadm diskstatus all

drbdadm state --disk all

Each nanny process checks the state of one configured service on one real server, and tells LVS if the service on that real server is malfunctioning.

The nanny process powers off a nonfunctional backend server.

The nanny process restarts the daemon of a failed service on a real server node.

The nanny process changes the IP routing table in the Linux kernel according to the LVS configuration.

Several cluster nodes access a shared resource without coordination.

Several cluster nodes run different instances of the same services.

Incoming network connections are accidentally forwarded to more than one backend server.

Instead of shared storage, each node uses local storage managed by itself and replicates with other nodes.

In addition to shared storage, each node has local storage that is not shared with other nodes.