• JBOD will have multiple enclosures, and each enclosure will have a ses device. Subset of disks in the JBOD will be attached to one enclosure.
• Each SAS card will be recognized as a device even though there are multiple phys in it. scbus# depends on the placement of PCI slot of SAS card. All ses and disk devices discovered through that SAS card will have same scbus#.
• Target id of a device can be different between (port 0 of SAS and port 0 of JBOD) connection and (port 0 of SAS and port 1 of JBOD) connection. target ids of a device depends on the JBOD/SAS card slots which are connected.