Explain PowerScale Filesystem Structure POWERSCALE-DESIGN-V2 Practice Questions (Page 3)

Questions 11–15

1. 11application · medium

   An administrator creates a snapshot of a critical directory on a PowerScale cluster. Later, a user modifies a file within that directory. What happens to the snapshot's data?

   • AThe snapshot's data is updated to reflect the change.
   • BThe snapshot's data is moved to a different location to preserve it.
   • CThe snapshot is deleted because it is no longer valid.
   • DThe snapshot retains the original data, and the modified file's new data is written to new blocks.
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2. 12foundation · easy

   What is a key benefit of distributing metadata across all nodes in a PowerScale cluster?

   • AIt avoids a metadata bottleneck, allowing metadata operations to scale with the number of nodes.
   • BIt ensures that all metadata is stored on the fastest node in the cluster.
   • CIt reduces the need for journaling because metadata is replicated.
   • DIt simplifies backup by keeping metadata in one place.
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4. 13foundation · easy

   What is the purpose of the fsck utility in the PowerScale filesystem?

   • ATo create new filesystems on unused disks.
   • BTo defragment files and improve performance.
   • CTo check and repair filesystem inconsistencies, such as corrupted inodes or block pointers.
   • DTo monitor real-time performance metrics of the filesystem.
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5. 14application · medium

   A research lab uses PowerScale to store large genomic datasets. They want to create multiple test environments by cloning datasets without consuming excessive storage space. They plan to make changes to the clones without affecting the original data. Which filesystem feature enables this with minimal storage overhead?

   • ASnapshots, which create read-only copies of the filesystem at a point in time.
   • BCopy-on-write clones, which share data blocks with the original until modified.
   • CDeduplication, which removes duplicate blocks across the filesystem.
   • DThin provisioning, which allocates blocks on demand.
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6. 15application · medium

   A system administrator suspects that a PowerScale filesystem may have inconsistencies after an unexpected node reboot. They want to check the filesystem integrity without disrupting ongoing operations. Which tool or approach should they use?

   • ARun the 'fsck' command with the '-n' option to check without making changes, during a low-activity period.
   • BRun fsck on the entire filesystem during a maintenance window.
   • CUse the PowerScale web interface to initiate a filesystem consistency check.
   • DReview the journal to ensure all transactions were replayed successfully.
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