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NCA-5.15 · Question #7

An administrator has a SQL VM running, which is experiencing high disk latency. What could the administrator do to alleviate this?

The correct answer is D. Create another Storage Container. Creating a dedicated storage container for the SQL VM (D) allows the administrator to tune storage policies specifically for SQL workloads-for example, disabling inline compression and deduplication, which add CPU and latency overhead that is particularly detrimental to OLTP…

Health and Troubleshooting

Question

An administrator has a SQL VM running, which is experiencing high disk latency. What could the administrator do to alleviate this?

Options

  • AIncrease CPU and Memory on the CVM
  • BAttach additional Volume Groups to the VM
  • CAdd more CPU and Memory to the VM
  • DCreate another Storage Container

How the community answered

(30 responses)
  • A
    3% (1)
  • B
    20% (6)
  • C
    7% (2)
  • D
    70% (21)

Explanation

Creating a dedicated storage container for the SQL VM (D) allows the administrator to tune storage policies specifically for SQL workloads-for example, disabling inline compression and deduplication, which add CPU and latency overhead that is particularly detrimental to OLTP workloads that perform many small, random I/Os. Migrating the SQL VM's vDisks to this optimized container isolates it from other workloads and removes latency-inducing features. Adding CPU/Memory to the CVM (A) addresses compute bottlenecks on the storage controller, not storage policy tuning. Adding Volume Groups (B) provides iSCSI block storage but does not directly resolve policy-induced latency. Adding vCPU/RAM to the VM itself (C) improves compute resources, not storage throughput.

Topics

#Performance Tuning#Disk Latency#Storage Container#I/O Optimization

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