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2.3. Compute

Red Hat OpenStack Platform 8 brings several notable new features in the Compute Service:

  • The nova set-password server command, which changes the admin password for a server, is now available.

  • The libvirt driver has been enhanced to enable virtio-net multiqueue for instances. With this feature on, workload is scaled across vCPUs, thereby increasing network performance.

  • Disk QoS (Quality of Service) when using Ceph RBD (RADOS block device) storage. Among other things, sequential read or write limitation, and total allowed IOPS or bandwidth for a guest can be configured.

  • The Mark host down API for external high-availability solutions. This API allows external tools to notify the Compute service of compute node failure, which improves instance resiliency.