Oracle Linux: XFS Fragmentation of Guest VM Image Files Cause Disk Slowness During "vmbackup" Script Running (Doc ID 2948336.1)

Last updated on JUNE 19, 2023

Applies to:

Linux OS - Version Oracle Linux 7.5 with Unbreakable Enterprise Kernel [4.14.35] and later
Linux x86-64

Guest VM crashes with the following stack trace

From Exawatcher iostat output, the guest VM does not generate a lot of I/Os but disk seems non-responsive with large r_awiat and w_await times.

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In this Document

Symptoms

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