Wednesday 23 November 2016

  • 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.

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