Disaster Recovery Linux Manager vs NetApp Disaster Recovery

Disaster Recovery Linux Manager (DRLM) is a free, on-premises system for centrally managing GNU/Linux disaster recovery with Relax-and-Recover (ReaR). It manages ReaR installations, schedules them, starts backups remotely, and supports network boot and recovery. Documented methods include ReaR PXE and NETFS (NFS), along with incremental backups, encrypted backup files, and TLS-secured rsync backups. DRLM can automatically install clients from the server when those clients are reachable over SSH. The project supports physical and virtual GNU/Linux systems and lists Debian, Ubuntu, CentOS, Rocky Linux, RHEL, openSUSE Leap, and SLES versions for the server. Error reporting integrations include HP OpenView, Nagios, Zabbix, and email. Its API uses HTTPS on port 443. Production downloads are source archives in tgz and zip formats, and the project uses the GNU General Public License version 3. The installation guide assumes a minimal Linux installation dedicated to the DRLM server.

NetApp Disaster Recovery coordinates replication, failover, and failback for VMware virtual machines and Kubernetes clusters between source and recovery sites. It uses NetApp ONTAP SnapMirror to keep application-consistent Snapshot copies synchronized; asynchronous replication can support a recovery point objective as low as five minutes. Teams can conduct nondisruptive failover tests using temporary virtual machines and FlexClone volumes. VMware recovery targets include on-premises environments, Google Cloud VMware Engine, and Amazon Elastic VMware Service. Kubernetes recovery supports on-premises NFS, iSCSI, or Fibre Channel, and recovery from on premises to AWS using NFS or iSCSI. The service runs within the NetApp Console SaaS environment and uses a Console agent in a cloud or private on-premises network. Its intelligent proxy communicates over HTTPS on port 443 without requiring a VPN or direct internet access. Licensing is based on used capacity on protected source ONTAP volumes, not virtual machine or application count. A free trial is listed, but plan prices are not provided.