What is the default size of the /var/log partition?
A. 500MB or 2GB depending on the version of OneFS.
B. As defined by parameters set in the node initialization wizard.
C. As large as the cluster size minus the production data.
D. 500MB by default or more if configured by an administrator at setup.
What is a default logging level for OneFS?
A. Warning
B. Error
C. Verbose
D. Debug
What is the purpose of the isi_sysctl_cluster command?
A. Make sysctl changes persistent
B. Display sysctls for all the nodes in the cluster
C. Start the sysctl configuration command line wizard
D. Search for failed sysctl modification attempts
What best describes sysctl commands?
A. Only used with senior support guidance
B. Are approved as public commands
C. Have limited risk to cluster performance
D. Are well documented and provide warnings when changed
What description best fits sysctl on Isilon nodes?
A. It is a dangerous tool that can severely affect cluster operations and should only be used with great care.
B. It has no chance of harming the cluster, so it can be used freely by any operator.
C. It is dangerous, but parameters do not change from version to version and are safe to modify based on prior knowledge.
D. It can be safely used as long as only local node parameters are altered, rather than network parameters.
Your customer comes to you with a sysctl command that they found on the Internet. They want to apply
this to their cluster.
What should you do?
A. Consult with Isilon support to understand the effects and risks to the customer's system.
B. Check the knowledge base to make sure the command is documented, and if so, apply it.
C. Apply the sysctl command to a single node to gauge the effect.
D. Warn the customer that this is not a supported command.
Your customer has installed a series of new nodes, and wishes to remove the old node 12 now that the installation is complete. Which command should be used to perform this task cleanly?
A. isi devices -a smartfail -d 12
B. isi_reformat_node -d 12
C. isi_reimage -d 12
D. isi config > remove 12
Your customer has installed a series of new nodes, and wishes to remove the old node 6 now that the installation is complete. Which command should be used to perform this task cleanly?
A. isi devices -a smartfail -d 6
B. isi_reformat_node -d 6
C. isi_reimage -d 6
D. isi config > remove 6
A customer has received an alert regarding a disk drive failure on node 2 of a 4 node cluster running OneFS 7.x. What isi command should be used to investigate which disk has the problem?
A. isi devices -d 2
B. isi status -d 2
C. isi devices -n 2
D. isi config >>> status
What is the expected displayed output after running "isi devices -d 3"?
A. Displays the bay, Lnum, da, Serial number, and health status for each drive in node 3.
B. Displays the individual detailed status information for drive 3 on each node in the cluster
C. Displays the individual detailed status information for drive 3 on the node you are connected to
D. Displays the drive controller status and individual drive connectivity status for node 3
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