Cannot read superblock on /dev/mapper/<VG>-<LV> — NetBackup 11.2.0.1

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Cannot read superblock on /dev/mapper/<VG>-<LV> — NetBackup 11.2.0.1 | Cohesity Documentation

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NetBackup™ Snapshot Manager for Cloud Install and Upgrade Guide

Section II. NetBackup Snapshot Manager for Cloud maintenance

Troubleshooting NetBackup Snapshot Manager for Cloud

Cannot read superblock on /dev/mapper/<VG>-<LV>

After an in-place restore of an OCI instance, if the LVM was created as part of the disk partition, then the LVM cannot determine the state of the volume group, and the LVM is not mounted by default.

Workaround:

Reactivate the volume group to solve the issue, run these command, one by one:

vgchange -a n <volume group name>

vgchange -a y <volume group name>

mount /dev/<volume group name>/<Logical_Volume> <mount_point>

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Performance issue with GCP backup from snapshot

Post migration on host agents fail with an error message

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