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000-221 · Question #196

000-221 Question #196: Real Exam Question with Answer & Explanation

The correct answer is C. To customize the bootrec of the newly mirrored drive. After mirroring rootvg, bosboot must be run against the new disk to write a valid boot image to its boot logical volume so the system can boot from it.

Question

After successfully mirroring rootvg using the mirrorvg command, why must the bosboot command be run against the introduced disk?

Options

  • ATo update the boot list held in NVRAM
  • BTo record from which disk the system will boot
  • CTo customize the bootrec of the newly mirrored drive
  • DTo synchronize the boot record between the mirrored drives

Explanation

After mirroring rootvg, bosboot must be run against the new disk to write a valid boot image to its boot logical volume so the system can boot from it.

Common mistakes.

  • A. Updating the NVRAM boot list is the function of the bootlist command, not bosboot.
  • B. Recording which disk the system will boot from is also the role of the bootlist command, not bosboot.
  • D. bosboot writes a boot image to a single specified disk; it does not synchronize boot records between mirrored drives.

Concept tested. AIX bosboot command and mirrored rootvg boot setup

Reference. https://www.ibm.com/docs/en/aix/7.3?topic=b-bosboot-command

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