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Difficulty: EasyPlanning Database Options and Persistent Disk Types

A cloud engineer is provisioning block storage for a batch-processing application running on a Compute Engine virtual machine. The application requires a low-cost disk primarily used for sequential read and write operations on large files where high IOPS per gigabyte is not required. Which Google Cloud storage option best meets these requirements?

  1. Standard Persistent Disk (pd-standard)Answer
  2. B
    Cloud Bigtable instance
  3. C
    Cloud Storage Archive storage class bucket
  4. D
    Spot VM ephemeral Local SSD

Answer

Standard Persistent Disk (pd-standard) is the correct choice because it offers low-cost HDD-based block storage suitable for sequential IO workloads on Compute Engine virtual machines.
Standard Persistent Disk (pd-standard) is backed by hard disk drives (HDD) and offers the most economical block storage option for Compute Engine instances handling sequential read/write operations and batch workloads.

Step-by-Step Solution

1
Identify the storage tier requirement
The application requires durable block storage attached to a Compute Engine VM.
Block storage is needed for direct file system access on Compute Engine instances.
2
Evaluate performance and cost constraints
Standard Persistent Disk (pd-standard) provides the lowest cost per GB among persistent disks for sequential IO workloads without requiring high random IOPS performance.
HDD-backed standard persistent disks prioritize cost efficiency for sequential throughput over high-cost SSD performance.

Key Concept

Compute Engine Persistent Disk Types and Block Storage Planning
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Topics

Planning Database Options and Persistent Disk Types

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