SAS port usage and status

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Planning during the product placement phase includes considering the specific use of each SAS port.

SAS port usage

Table 1 lists the supported functions of the individual ports on the system.

Table 1. SAS port usage
Node type SAS ports (in numerical order)
FlashSystem 7300
  1. SAS port 1: Wide port for attachment to an expansion enclosure
  2. SAS port 3: Wide port for attachment to an expansion enclosure

Status Reporting

The lsportsas command displays two attributes for each SAS port:
  • Attachment: what currently is attached to the port (values: none/host/enclosure).
  • Type: what the port can be attached to (values: host/enclosure).