GPFS / Spectrum Scale Introduction, concept, definitions
Spectrum Scale with CSI drivers for OpenShift
https://leo.leung.xyz/wiki/GPFS
https://wiki.samba.org/index.php/Samba_CTDB_GPFS_Cluster_HowTo
https://www.roamingzebra.co.uk/2015/07/smb-protocol-support-with-spectrum.html
https://developer.ibm.com/storage/2018/05/29/whats-new-ibm-spectrum-scale-5-0-1/
http://www-03.ibm.com/support/techdocs/atsmastr.nsf/WebIndex/WP102691