After operating an EMC Isilon 3-node cluster for some time, a customer notices that the amount of storage used seems significantly larger that it should be. The filesystem has a tremendous amount of small (<128K) files and the protection level is N+2d:1n. The customer does not want to sacrifice data protection.
What should be done to increase available capacity?
A. Nothing
B. Defragment the disks
C. Compress the small files
D. Change protection to 2x mirroring
What is the file protection mechanism used with OneFS file striping?
A. Forward error correction
B. Redundant array of independent disks
C. Non-volatile random access memory
D. Drive controller mirroring
A customer has an existing cluster with 10 S200 nodes in a single node pool, and 15 NL400 nodes in a second node pool. They need to add capacity to their S200 node pool. The sales team has indicated they should purchase an S210 node to obtain the additional capacity. What is required to add the new node to the existing node pool?
A. S210 node must have the same number and capacity of HDDs and SSDs as the S200s
B. S210 node must have the identical memory capacity as the S200s
C. S200 nodes must be upgraded to the same firmware as the S210s
D. S200 node pool must be modified to use L3 cache
A customer is examining their CELOG events on their OneFS 7.2 cluster and identifies an event indicating one of their node pools is underprotected.
What is the most likely cause of the CELOG event?
A. Additional nodes were added to the cluster
B. One or more of their nodes are offline
C. The OneFS version on the cluster was recently upgraded
D. The Default file pool policy requested protection level was modified
What benefit does GNA provide to the cluster?
A. Metadata read acceleration across the cluster
B. Namespace read/write acceleration across the cluster
C. An additional level of cache on SSDs used for metadata
D. Metadata read acceleration specifically for the job engine
A drive is being SmartFailed from a node and the data is being rebuilt. Where will the data be rebuilt by default?
A. Any available space on the same node pool
B. Space reserved as VHS only in the same node pool
C. Node pool designated in the global spillover setting
D. Node pool specified in the Default file pool policy
A customer is worried about the possibility of exceeding the node pool storage capacity when a data rebuild is required from a failed hard drive.
What configuration setting(s) should be verified and included when you configure the cluster?
A. Enable VHS, and deny data writes to reserved disk space
B. Enable L3 cache
C. Enable GNA
D. Increase the node pool default requested protection level
What additional Hadoop feature is provided by an EMC Isilon cluster environment?
A. Multi-protocol access to HDFS data
B. Reduced compute time
C. Dependent compute and storage scaling
D. Same security authentication as Hadoop
Which feature distinguishes SMBv2 from SMBv1?
A. Endurant file handler
B. Stateless protocol
C. Change notification
D. Packet signing
Which features are part of the traditional Hadoop NameNode?
A. Filesystem for the metadata One physical server
B. Holds Metadata/location data for the cluster Task Tracker
C. Filesystem for the metadata Multiple NameNodes
D. One physical server Task Tracker
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