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ServerView Resource Orchestrator V3.4.0 Troubleshooting
FUJITSU Software

5.3 After the Operation of Restoring a Snapshot for Virtual L-Server, the Number of Disk Resources Changes. [KVM]

Description

Snapshots of KVM retain VM configurations.

VM configurations include disk resource configurations (*).

When performing restoration operations for snapshots, if the number of disk resources in the information of the snapshot and the number of disk resources of the L-Server used for restoration are different, the number of disk resources after the snapshot is restored will change.

* Note: This means the following. The number, types, and file paths of qcow2 image files that are disk resources created from virtual storage. The number, types, and file paths of raw devices or partitions that are disk resources created in advance.

Corrective Action

Perform corrective action accordingly on VM hosts.

Example

  1. Delete any unnecessary qcow2 image files that remain in the shared directory on the NFS server.
  2. Allocate any qcow2 image files that remain in the shared directory on the NFS server, raw devices or partitions to VM guests again.

    For the connection method when allocating them to a VM guest, refer to the RedHat manual.

    For details, refer to the following chapter in the "Red Hat Enterprise Linux 6 Virtualization Administration Guide".

    Chapter 14. Managing guest virtual machines with virsh

    URL: https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Virtualization_Administration_Guide/index.html