Explain Storage Pools, Policies, Neighborhoods, Global Namespace, Spillover, and VHS D-PSC-DY-23 POWERSCALE-DEPLOY Practice Questions (Page 3)

Questions 11–15

1. 11expert · hard

   A high-performance computing (HPC) center runs a PowerScale cluster with 30 nodes in three racks. The center's workload is a mix of large sequential writes and random reads. The administrator wants to maximize write throughput while ensuring that read latency is minimized. They have configured a neighborhood that includes all nodes in rack 1 and rack 2, and a storage pool that includes all 30 nodes. A file pool policy is set to place data in the neighborhood. What is the most likely impact of this configuration?

   • AWrite throughput and read latency will both improve because the neighborhood optimizes data placement.
   • BWrite throughput will increase because data is written to fewer nodes, and read latency will also increase.
   • CWrite throughput and read latency will both degrade because the neighborhood is too large.
   • DWrite throughput may be limited because data is confined to a subset of nodes, but read latency may improve due to locality.
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2. 12application · medium

   A research lab runs a PowerScale cluster with nodes spread across two racks. The lab's analytics workload frequently reads large datasets that are written by a single application server. The administrator notices that read performance is inconsistent and suspects that data is being distributed across nodes in both racks, causing cross-rack network traffic. Which configuration would most directly improve data locality for this workload?

   • AConfigure a neighborhood that includes only the nodes in the same rack as the application server.
   • BEnable SmartQuotas to limit the amount of data stored on remote-rack nodes.
   • CSet a protection policy with a higher redundancy level to improve read performance.
   • DCreate a storage pool that spans both racks to balance capacity across all nodes.
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4. 13application · medium

   A financial firm has a PowerScale cluster with a mix of SSD and HDD nodes. They have a compliance requirement that all financial records must be stored on SSD nodes for fast retrieval, while general files can reside on HDD nodes. The administrator needs to ensure that new financial records are automatically placed on SSD nodes. Which policy should be configured?

   • AA file pool policy that matches financial records by path and sets the storage pool to the SSD pool.
   • BAn access policy that grants financial analysts read/write access to the SSD pool.
   • CA performance policy that prioritizes I/O for financial records on the cluster.
   • DA protection policy that sets a higher redundancy level for financial records.
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5. 14application · medium

   A company has two PowerScale clusters in different data centers. They use SyncIQ to replicate data between them. Users access data through a global namespace that spans both clusters. If the primary cluster becomes unavailable, what happens to user access?

   • AUsers can access only the data that was spilled over to the secondary cluster.
   • BUsers can continue to access data through the global namespace, which redirects to the secondary cluster.
   • CUsers lose access until the primary cluster is restored.
   • DUsers must manually mount the secondary cluster's namespace.
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6. 15foundation · easy

   What is the role of a protection policy in a PowerScale cluster?

   • ATo determine the network bandwidth allocated to each client
   • BTo specify the retention period for file system snapshots
   • CTo control which users can access specific files and directories
   • DTo define the level of data redundancy and fault tolerance for files
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