International Business Machines Corporation

Venkateshwar R Yerravalli

Ravi Shankar

Perinkulam I Ganesh

Jes Kiran Chittigala

Esdras E Cruz-Aguilar

Yadagiri Rajaboina

Michael Burton

Hanumanthu Hanok

Phani Kumar Vu Ayyagari

Disclosed embodiments provide systems, methods, and techniques enabling Non-Volatile Memory Express (NVMe) namespace promotion from a private namespace to a shared namespace, which eliminate conventional operations of deleting existing private namespaces and creating new namespaces as shared. In a disclosed embodiment, an NVMe host driver issues an NVMe management command to change an NVMe private namespace to a shared namespace during a namespace promotion. An NVMe controller sends an NVMe response to the NVMe host indicating an attribute of the NVMe private namespace changed to the shared namespace. The NVMe response is received by a host processor and the private namespace is promoted to shared and attachable by multiple NVMe controllers in an NVMe subsystem.

Promoting NVMe private namespace to shared namespace

A processor, based on detection of a configuration change to a central electronics complex (CEC) in a CEC group, automatically creates a monitoring network within the CEC. Automatically creating the monitoring network includes the processor issuing a request via a hardware management console (HMC) to the CEC to create a virtual switch implementing a virtual local area network (VLAN). The processor also issues a request via the HMC to the CEC to create, on a virtual input-output server (VIOS) hosted in the CEC, a virtual trunk adapter connected to the VLAN. In addition, the processor issues a request via the HMC to the CEC to create, on each of a plurality of logical partitions (LPARs) hosted in the CEC, a virtual network adapter connected to the VLAN. The processor can employ the network, for example, to monitor health of the LPARs and VIOS within the CEC via the HMC.

Automated deployment of a private monitoring network

Growing community of inventors

Hyderabad Telangana, India

Venkateshwar R Yerravalli