E20-655 Online Practice Questions and Answers

A customer has a 10 node cluster running OneFS 6.5.5.5. They want to upgrade to the latest OneFS

7.1.x.x in a one hour maintenance window.

What is their only option?

A. A simultaneous upgrade to the latest OneFS 7.1.x.x

B. A rolling upgrade to the latest OneFS 6.5.5.x, followed by a rolling upgrade to the latest OneFS 7.1.x.x

C. A rolling upgrade straight to the latest OneFS 7.1.x.x

D. A simultaneous upgrade to the latest OneFS 6.5.5.x, followed by a simultaneous upgrade to the latest OneFS 7.1.x.x

A customer needs to upgrade their 6 node Isilon cluster from OneFS 7.0 to OneFS 7.1 with minimal disruption.

What would be the best way to upgrade the cluster?

A. Perform a simultaneous upgrade of all nodes

B. Perform a rolling upgrade of all nodes

C. Perform a simultaneous upgrade of 1 node at a time

D. Perform a rolling upgrade of 2 nodes at a time

Which of the following offers integration with other EMC remote support options for Isilon clusters?

A. ESRS

B. SupportIQ

C. SMTP

D. isi_gather_info

Which capability does the "isi_nodes" command provide?

A. Displays customized node information

B. Integrates OneFS with UNIX commands

C. Enables cluster wide execution of single node commands

D. Provides code configuration capabilities

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 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

A large cluster running OneFS 7.0 that has lost several drives is not deleting old snapshots.

What might explain this?

A. The FlexProtect job is running and preventing SnapshotDelete from running.

B. SnapshotDelete is running but because of cluster size and lost drives it is very slow.

C. SnapshotDelete will not run while drives are in a down state.

D. The IntegrityScan job is running and will only invoke SnapshotDelete once it has completed.

A customer is using IBM's Tivoli Monitoring management software and reports that SNMP data for the Isilon cluster is indecipherable.

How can this be resolved?

A. Download Isilon MIBs from the cluster or from Isilon Knowledgebase.

B. Contact software vendor and request an upgrade to SNMP software

C. Write a program to convert SNMP numbers to a readable format

D. Extract records with object identifier of 12124 and process with Excel

During a cluster split which log file, on each node, does the cluster update?

A. /var/log/messages

B. /var/crash

C. /ifs/data/Isilon_Support

D. /var/journal

Which characteristic is present in dynamic pool configuration?

A. Best for NFSv2 and NFSv3 clients

B. Best for SMB and NFSv4 clients

C. IP addresses do not failover if node is lost

D. Only allocates a single IP address per NIC