Storage Architecture
| Component | Function |
|---|---|
| iSCSI Initiator | Host-side iSCSI client (open-iscsi) |
| iSCSI Target | Storage array iSCSI service |
| LUN | Logical Unit - block device presented to hosts |
| MPIO | Multipath I/O - aggregates paths to LUN |
| GFS2 | Clustered filesystem for shared access |
Clustered Filesystem
GFS2 is the primary clustered filesystem for VME iSCSI datastores. It requires a minimum of 3 cluster nodes for quorum and is managed entirely through the VME Manager UI.