Docker - Resource Management
A system administrator wants to use the devicemapper storage driver in direct-lvm mode for better performance. What must they ensure before configuring Docker?
A system administrator wants to use the devicemapper storage driver in direct-lvm mode for better performance. What must they ensure before configuring Docker?
hard📝 Application Q9 of 15
Step-by-Step Solution
Solution:
Step 1: Understand devicemapper direct-lvm requirements
Direct-lvm mode requires dedicated block devices for Docker to manage storage efficiently.Step 2: Eliminate unrelated options
Aufs module, btrfs formatting, or overlay2 support are unrelated to devicemapper direct-lvm setup.Final Answer:
Set up dedicated block devices and configure Docker daemon accordingly -> Option AQuick Check:
Direct-lvm needs dedicated block devices [OK]
Quick Trick: Direct-lvm requires dedicated block devices setup [OK]
Common Mistakes:
- Trying to enable aufs module
- Changing root filesystem type
- Installing overlay2 support unnecessarily
Master "Resource Management" in Docker
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