Which of the following statements are true regarding OCFS2? (Choose TWO correct answers.)
A. OCFS2 is an integral part of Pacemaker and relies on Pacemaker services for functionality.
B. To avoid the need for shared storage, OCFS2 can replicate the content of its filesystems via the network.
C. When using OCFS2 with additional cluster software, OCFS2 must be integrated into the overall cluster manager to ensure consistent cluster behaviour.
D. OCFS2 can be used without any additional software as it contains its own cluster manager, O2CB.
E. In addition to filesystems, OCFS2 can handle other cluster services such as IP addresses and server daemons.
Which O2CB mode should be used for OCFS2 integration with heartbeat?
A. user
B. dlm
C. heartbeat
D. kernel
Which kernel module must be loaded to initiate a RAID-1 like copy of data on two separate storage devices for a clustered storage solution?
A. rsyncd
B. drbd
C. clraid
D. clmirror
What is the task of the Cluster Logical Volume Manager, CLVM?
A. It segments the cluster nodes into several logical groups that are always fenced together.
B. It balances incoming TCP connections to a logical service to several backend nodes.
C. It makes logical volumes on shared storage available to all cluster nodes.
D. It allows several nodes to share file system locks in order to access the same files simultaneously.
What is the name and path of the configuration file for the O2CB cluster that coordinates the nodes using OCFS2 filesystems?
A. /etc/ocfs2/cluster.conf
B. /etc/ocfs/cluster.conf
C. /etc/ocfs2.conf
D. /etc/cluster.conf
How can the state of the backing storage disks of a DRBD device be checked? (Choose TWO correct answers.)
A. cat /proc/drdb/status
B. cat /proc/drdb
C. drbdadm dstate all
D. drbdadm diskstatus all
E. drbdadm state --disk all
Which one of the following is NOT a required component for running an OCFS2 filesystem resource in a Pacemaker cluster?
A. A clone resource for the OCFS2 file system.
B. A shared storage device accessible by all nodes using the OCFS2 filesystem.
C. The distributed lock manager (DLM).
D. The cluster logical volume manager (CLVM).
E. The O2CB service.
Which of the following statements is true regarding journals of a GFS2 filesystem?
A. Each GFS2 filesystem has exactly one journal.
B. Once a GFS2 filesystem is created, the number of journals cannot be changed.
C. Every node that simultaneously mounts the filesystem requires its own GFS2 journal.
D. Journals were heavily used in GFS and are deprecated and optional in GFS2.
E. The GFS Cluster Journal Daemon, GCJD, handles the journaling in a GFS2 cluster.
Which parameter of vgchange controls whether a volume group is shared within a shared storage cluster? (Specify ONLY the option name without any values or parameters.)
A. -c -or- c -or- clustered -or- --clustered
Which of the following can be used as a low level device for DRBD? (Choose TWO correct answers.)
A. A LVM logical volume
B. A physical hard disk
C. A rewritable CD
D. A virtual tape library
E. A tape streamer
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