Describe PowerScale Storage Concepts Such as Scale Out Versus Scale up, Architecture, and OneFS Details POWERSCALE-DEPLOY Practice Questions (Page 5)

Questions 21–25

1. 21foundation · easy

   What mechanism does OneFS use to ensure data is evenly distributed across nodes?

   • AA central scheduler that assigns files to nodes based on current load
   • BManual placement by administrators to optimize performance
   • CRound-robin assignment based on the order files are created
   • DA hash-based algorithm that distributes data and metadata across nodes
   Reveal Solution Discussion Select an answer first
2. 22foundation · easy

   A storage administrator needs to grow a PowerScale cluster from 10 nodes to 20 nodes. Which architecture does this represent?

   • ATiering
   • BScale-up
   • CScale-out
   • DFederation
   Reveal Solution Discussion Select an answer first
4. 23application · medium

   A company is deploying a 3-node PowerScale cluster. The network team asks whether the cluster can use the same network for client access and inter-node communication to simplify cabling. Which response is accurate?

   • ANo, the cluster must use InfiniBand for the front-end network and Ethernet for the back-end network
   • BNo, the cluster requires a dedicated back-end network for inter-node communication, separate from the client-facing front-end network
   • CYes, but only if the cluster uses a single switch for all traffic
   • DYes, a single network can be used for both client access and back-end communication
   Reveal Solution Discussion Select an answer first
5. 24expert · hard

   A company has a 3-node PowerScale cluster that is 85% full. The workload is mixed: 60% sequential reads of large files and 40% random writes of small files. The storage team is considering adding a 4th node. Which effect will this have on the cluster's performance characteristics?

   • ASequential read throughput will increase, but random write performance will degrade because the new node adds latency
   • BRandom write performance will improve, but sequential read throughput will decrease because the cluster is now larger
   • CBoth sequential reads and random writes will remain unchanged because performance is determined by the protection level
   • DAggregate throughput for sequential reads will increase, and the additional node will provide more capacity to absorb random writes
   Reveal Solution Discussion Select an answer first
6. 25foundation · easy

   How does adding a node to a PowerScale cluster affect performance?

   • AIt increases performance only if the new node is used exclusively for metadata
   • BIt decreases performance because the cluster must rebalance data across more nodes
   • CIt has no effect on performance because performance is limited by the front-end network
   • DIt increases aggregate performance by adding more CPUs, memory, and network bandwidth to the cluster
   Reveal Solution Discussion Select an answer first