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Exam E20-393 topic 1 question 89 discussion

Actual exam question from Dell's E20-393
Question #: 89
Topic #: 1
[All E20-393 Questions]

What is a characteristic of Automatic UFS64 File System extension?

  • A. Array I/O service to clients is disrupted during auto-extension
  • B. Allocated space remains unchanged after extend operation
  • C. Auto-extension can exceed the file system visible size
  • D. File system cannot auto-extend past the provisioned size
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Suggested Answer: C 🗳️

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Fehri
Highly Voted 4 years, 9 months ago
Correct D
upvoted 6 times
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sumirsaini
Most Recent 1 year, 10 months ago
Answer is D: - It cannot exceed the file system visible size. Only allocated space increases, not the file system provisioned size. The file system cannot auto-extend past the provisioned size
upvoted 1 times
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dr_robot
2 years, 9 months ago
D is the correct answer. The system automatically allocates space for a thin UFS64 file system along with space consumption. Auto extend happens when the space consumption threshold is reached. The threshold is the percentage of used space in the file system allocated space (system default value is 75%). It cannot exceed the file system visible size. Only allocated space increases, not the file system provisioned size. The file system cannot auto-extend past the provisioned size.
upvoted 1 times
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diaboliq1990
3 years, 8 months ago
C correct
upvoted 2 times
diaboliq1990
3 years, 8 months ago
he system automatically shrinks and extends a thin file system based on capacity needs. Thin-provisioned file systems are automatically extended or shrunk by the system when certain conditions are met. Automatic extend prevents the file system from running out of space. Automatic shrink improves space allocation by releasing any unused space back to the storage pool. The automatic shrink and automatic extend operations are based on a high water mark (HWM) for auto-extend and a low water mark (LWM) for auto-shrink. For file systems smaller than 2.5 tebibytes (TiB) in size: The file system is automatically extended when the used space exceeds and sustains over 75% of the allocated space. This is the fixed high water mark (HWM) for file systems less than 2.5 TiBs. The file system automatically shrinks and returns space to the pool when the used space is 70% less than the allocated space. This is the fixed low water mark (LWM) for file systems less than 2.5 TiBs.
upvoted 2 times
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danish
4 years, 6 months ago
file system cannot auto-extend past the provisioned size.
upvoted 2 times
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