Automatic space sharing of disaggregated storage of a storage pod by multiple nodes of a distributed storage system

A non-transitory machine readable medium storing instructions, which when executed by one or more processing resources of a distributed storage system, cause the distributed storage system to:

• provide a storage pod having a group of disks containing multiple Redundant Array of Independent Disks (RAID) groups, wherein storage space of the storage pod is accessible concurrently to all nodes of a plurality of nodes of a cluster, wherein the cluster represents a distributed storage system, and wherein the storage space is partitioned into a plurality of allocation areas (AAs), and wherein each AA of the plurality of AAs includes multiple RAID stripes of a given RAID group of the multiple RAID groups;
• monitor storage space availability or usage by one or more dynamically extensible file systems (DEFSs) of a node of the plurality of nodes, wherein ownership of a given set of one or more AAs of the plurality of AAs is assigned to respective DEFSs of the plurality of nodes;
• based on the storage space availability or usage meeting a predetermined or configurable threshold in relation to storage space availability or usage of one or more DEFSs of one or more other nodes of the plurality of nodes of the cluster, requesting ownership of one or more of the plurality of AAs currently owned by the one or more DEFSs of the one or more other nodes be transferred to a DEFS of the one or more DEFSs of the node.

A distributed storage system comprising:

• one or more processing resources;
• and
• instructions that when executed by the one or more processing resources cause the distributed storage system to:
• provide a storage pod having a group of disks containing multiple Redundant Array of Independent Disks (RAID) groups, wherein storage space of the storage pod is accessible concurrently to all nodes of a plurality of nodes of a cluster, wherein the cluster represents a distributed storage system, and wherein the storage space is partitioned into a plurality of allocation areas (AAs), and wherein each AA of the plurality of AAs includes multiple RAID stripes of a given RAID group of the multiple RAID groups;
• monitor storage space availability or usage by one or more dynamically extensible file systems (DEFSs) of a node of the plurality of nodes, wherein ownership of a given set of one or more AAs of the plurality of AAs is assigned to respective DEFSs of the plurality of nodes;
• based on the storage space availability or usage meeting a predetermined or configurable threshold in relation to storage space availability or usage of one or more DEFSs of one or more other nodes of the plurality of nodes of the cluster, request ownership of one or more of the plurality of AAs currently owned by the one or more DEFSs of the one or more other nodes be transferred to a DEFS of the one or more DEFSs of the node.