Backup and Recovery
Backup and Recovery 7.1
Backup and Recovery 7.1
  • Storware Backup & Recovery documentation
    • Table of Contents
  • Changelog
  • Overview
    • Main Features
    • Storware Backup and Recovery concepts
      • Support Matrix
      • Architecture
      • Components
      • Backup types
      • Typical Scenarios
    • Licensing
    • Product Life Cycle
  • Deployment
    • Component requirements
    • Supported platforms requirements
    • Sizing Guide
      • Small
      • Medium
      • Large
    • Installation
      • ISO-based installation
      • Quick Installation using all-in-one script
      • Installation using Ansible playbook
      • Installation with RPMs
      • Deployment in Microsoft Azure
      • Virtual Appliance
        • RHV/oVirt/OLVM Virtual Appliance
        • Citrix Hypervisor | XCP-ng Virtual Appliance
        • VMware Virtual Appliance
        • Nutanix Acropolis Hypervisor (AHV)
    • Initial Configuration
    • Backup Destinations
      • File System
        • Synthetic File System
          • XFS
          • DD Boost
        • isoLayer (Synthetic)
        • File system
          • Virtual Data Optimizer (VDO)
        • Catalogic Software vStor
      • Deduplication Appliances
        • Dell EMC Data Domain
        • Huawei OceanProtect
        • HPE StoreOnce
        • Exagrid
        • Neverfail HybriStor
      • Object Storage
        • Alibaba Cloud OSS
        • AWS S3 or S3-compatible
        • Ceph Rados Gateway
        • Cloudian S3
        • Wasabi
        • Google Cloud Storage
        • IBM Cloud Object Storage
        • Microsoft Azure Blob Storage
        • Nutanix Objects
        • OpenStack SWIFT
        • Oracle Cloud Infrastructure Object Storage
        • Scality RING
      • Enterprise Backup Providers
        • Dell EMC Avamar
        • Dell EMC Networker
        • IBM Spectrum Protect
        • Micro Focus Data Protector
        • Veritas NetBackup
        • Rubrik Managed Volumes
      • Tape Pools
    • High Availability
      • 2 Node Cluster
      • 3 Node Cluster
    • Common tasks
      • Staging space configuration
      • Enabling HTTPS connectivity for nodes
      • LVM setup on Storware Backup & Recovery Node for disk attachment backup mode
      • Full versions of libvirt/qemu packages installation
      • SSH public key authentication
      • Enabling HTTP(S) Proxy for Storware Backup & Recovery
  • Protecting Virtual Environments
    • Virtual Machines
      • VMware vSphere/ESXi
      • Microsoft Hyper-V
      • Azure Stack HCI
      • Nutanix Acropolis Hypervisor (AHV)
      • Red Hat Openshift Virtualization
      • Red Hat Virtualization
      • oVirt
      • Oracle Linux Virtualization Manager
      • Oracle VM
      • Proxmox VE
      • KVM/Xen
      • OpenStack
      • OpenNebula
      • Virtuozzo
      • Verge
      • Citrix Hypervisor (XenServer)
      • XCP-ng
      • Huawei FusionCompute
      • HPE SimpliVity
      • SC//Platform
    • Cloud
      • Amazon EC2
      • GCP GCE
      • Azure Cloud
    • Containers
      • Kubernetes
      • Red Hat OpenShift
      • Proxmox VE
    • Backup & Restore
    • v2v migration
  • Protecting Microsoft 365
    • Microsoft 365 organization management
      • Configure Microsoft 365 access
      • Add Microsoft 365 organization manually
      • Add Microsoft 365 organization using the Setup Assistant
      • Account auto-synchronization
    • Backup & Restore
    • Suppoted Sharepoint templates, and limitations
  • File Level Backup and Restore - OS Agent
  • Protecting Applications
    • Applications
      • MSSQL
      • MySQL/MariaDB
      • PostgreSQL
      • DB2
      • Oracle
      • Relax and Recover - ReaR
      • Git
      • oVirt/RHV/OLVM
      • Kubernetes/OpenShift etcd
    • Backup & Restore
  • Protecting Storage Providers
    • Storage Providers
      • Ceph RBD
      • Nutanix Files
      • Nutanix Volume Groups
    • Backup & Restore
  • Administration
    • Dashboard
    • Virtual Environments
      • Instances
        • Backup on-demand
        • Restore on-demand
        • Snapshot Management
      • Virtualization Providers
      • Backup SLAs
        • Policies
        • Schedules
      • Snapshot SLAs
        • Policies
        • Schedules
      • Recovery Plans
        • Policies
        • Schedules
      • Mounted Backups (File-level Restore)
    • Storage
      • Instances
        • Backup on-demand
        • Restore on-demand
      • Infrastructure
      • Backup SLAs
        • Policies
        • Schedules
      • Snapshot SLAs
        • Policies
        • Schedules
      • Mounted Backups (File-level Restore)
    • Cloud
      • Instances
      • Service Providers
      • Backup SLAs
        • Policies
        • Schedules
      • Download
    • Applications
      • Instances
      • Execution Configurations
      • Backup SLAs
    • Endpoints
      • Environment
      • Administrators
      • Endpoints Server Management
        • Dashboard
        • Packages
        • Organizations
      • Endpoints Administrator
        • Dashboard
        • Users
          • Local users
          • LDAP users
        • Devices
          • Devices list view
          • Device status
        • Backup SLA
          • Create a Backup SLA
            • GENERAL
            • WINDOWS
            • MAC OS (technical preview)
            • EMAIL CLIENTS
          • Backup SLA management
          • Backup SLA removal
        • Restore Jobs
        • Client Deployments
    • Reporting
      • Virtual Environments
      • Storage
      • Microsoft 365
      • Applications
      • Notifications
      • Audit Log
    • Nodes
      • Instances
      • Node Configurations
    • Access Management
      • Users
      • Groups
      • Roles
      • OS Credentials
    • Settings
      • Global Settings
      • Internal DB Backup
      • Notification Rules
      • Mailing Lists
      • Endpoints Global Settings
    • Upgrade
    • CLI Reference
    • CLI v2 Reference
  • Integration
  • Integration Plugins
    • Red Hat Virtualization UI Plugin
    • oVirt UI Plugin
    • Oracle Linux Virtualization Manager UI Plugin
    • OpenStack UI Plugin
  • Troubleshooting
    • Enable DEBUG mode in Storware Backup and Recovery
    • Collecting logs
    • External log targets
    • Disaster Recovery
  • Known software issues and limitations
  • Glossary
Powered by GitBook
On this page
  • Backup Process
  • KVM - VG scanning
  • KVM - full libvirt installation
  • Public key authentication
  • Limitations
  1. Protecting Virtual Environments
  2. Virtual Machines

KVM/Xen

PreviousProxmox VENextOpenStack

Storware Backup & Recovery access KVM/Xen (stand-alone libvirt) hosts over SSH. The Storware Backup & Recovery Node can be installed outside of the environment.

Backup Process

  • direct access to the hypervisor over SSH

  • crash-consistent snapshot taken directly using virsh (QCOW2/RAW file), lvcreate (LVM), rbd snapshot for Ceph (separate call for each storage backend) For QCOW2/RAW file, virsh snapshot-create-as is used when VM is running - otherwise, qemu-img create is used

  • optional application consistency using pre/post snapshot command execution

  • QCOW2/RAW-file/LVM data exported over SSH (optionally with netcat)

  • Ceph RBD data exported using rbd export or RBD-NBD when incremental is used If last stored snapshot is not missing, snapshot diffs are downloaded using rbd diff, then changes are written to inc file and diff file. If it is missing, export is treated as full, and then rbd export is used.

  • libvirt XML metadata saved • last snapshot kept on the hypervisor for the next incremental backup (if at least one schedule assigned to the VM has backup type set to incremental)

  • restore recreates files/volumes according to their backend (same transfer mechanism as used in backup) and then defines VM on the hypervisor

KVM/Xen (libvirt) environments require to have the correct entry in known_hosts on the node:

  • it must be known_hosts file that belongs to vprotect user

  • the algorithm must be set to ssh-rsa

  • make sure to have in your Node Configuration known_hosts file-path set to the location that is accessible for vprotect user - default /opt/vprotect/.ssh/known_hosts

  • if your user/group used on the KVM host is other than qemu:qemu then provide them in hypervisor details form when you add/update the hypervisor

KVM - VG scanning

Used with LVM-based VMs only. In order to allow VG scanning make sure to have your LVM packages up to date on the hypervisor. LVM reporting was one of the features added in RHEL/CentOS 7.3 and is used by Storware Backup & Recovery to collect information about VGs.

KVM - full libvirt installation

Public key authentication

Limitations

  • incremental backup is unavailable for LVM disks

CentOS-based KVM hypervisors may not have full libvirt available, specifically libvirt's blockcommit operation. If you need to change libvirt to the full version, make sure to follow the steps in this section: .

If you prefer to authenticate by using public keys instead of a password, follow the steps described in section.

Full versions of libvirt/qemu packages installation
SSH public key authentication