Spectra Logic T380 - Manual (Page 23)

Complete the Procedure Connecting the Cables
April 2013 Drive Installation or Replacement—Spectra T200, T380, T680, T950, and T-Finity Library
23
Partitions Using QIP-Attached SCSI Drives (T200, T380, T680, and
T950 libraries)
When a partition includes SCSI drives, an QIP can be used to provide the
connectivity to the host. Each QIP has two external ports and provides
connectivity for up to four SCSI drives. If a partition contains more than
four drives, additional QIPs are required to provide the connectivity for
those drives.
Notes:
 Depending on the configuration, one of the QIPs used for
drive connectivity can also be used to provide the robotic
control path.
 The Controller Failover feature is not supported for any QIP
that has SCSI drives connected to it. The QIP pair configured
for Controller Failover can only be used to provide the
robotic control path.