1Y0-312 Performance and Scalability Optimization Practice Question
An administrator is preparing a Citrix Virtual Apps and Desktops 7 environment for a large-scale rollout of 500 non-persistent pooled VDAs. During a pilot, the administrator observes that the shared storage array reaches 100 percent utilization during the morning boot storm, causing slow logons. The administrator wants to reduce the storage I/O impact of the boot storm. Which two actions should the administrator take? (Choose two.)
⚠ Common exam trap
The trap here is assuming that array-level write-back caching or switching to persistent desktops will solve a boot storm, when the real fix is to reduce or spread the I/O generated by simultaneous VDA startups.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Stagger the boot schedule of the VDAs using power management schedules.
The two actions that directly reduce boot-storm storage I/O are caching in RAM with overflow to disk and staggering boot schedules. RAM caching keeps the high-volume boot writes off the shared array, while staggered power management spreads the remaining load over time, lowering peak utilization and improving logon performance across the 500 non-persistent VDAs.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Stagger the boot schedule of the VDAs using power management schedules.
Why this is correct
Power management schedules let the administrator start VDA groups at different times rather than all at once, which spreads the boot and logon I/O across a longer window. This lowers peak storage utilization during the morning storm and improves logon responsiveness, without changing the master image or requiring additional storage hardware.
- ✗
Enable write-back caching on the shared storage array controller.
Why it's wrong here
Write-back caching on the array controller can improve write performance, but it does not reduce the volume of I/O generated by 500 simultaneous boots. The array controller cache is finite and can be overwhelmed by the sustained burst, so it is not a reliable way to prevent 100 percent utilization during the boot storm. It also introduces a data-loss risk if the controller cache fails before flushing.
- ✗
Convert the pooled VDAs to persistent dedicated desktops.
Why it's wrong here
Persistent dedicated desktops change the assignment model but do not reduce the I/O generated during boot and logon, and they increase storage consumption because each user has a unique disk. This approach would not relieve the shared storage array during the morning storm and would undermine the benefits of the pooled non-persistent model the administrator is deploying.
- ✗
Disable the Windows page file on all VDAs.
Why it's wrong here
Disabling the page file can cause applications to fail when memory is exhausted and may increase memory pressure, but it does not meaningfully reduce the boot-storm I/O on the shared storage array. The dominant I/O during boot comes from image reads and writes, not paging, so this action would not solve the 100 percent utilization problem and risks destabilizing the VDAs.
- ✓
Enable Citrix Provisioning cache in RAM with overflow to disk on the target devices.
Why this is correct
Caching in RAM with overflow to disk absorbs the burst of writes generated during boot and logon into local memory, so the shared storage array is not overwhelmed. This directly reduces the I/O pressure that is causing 100 percent utilization and slow logons, and it scales well across many non-persistent target devices because each VDA contributes its own cache.
About these practice questions
This 1Y0-312 question is part of Courseiva's 186-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Citrix exam blueprint
This 1Y0-312 practice question is part of Courseiva's free Citrix certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 1Y0-312 exam.