Connecting the cables, Drive connectivity – Spectra Logic T380 User Manual

Page 21

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Complete the Procedure

Connecting the Cables

April 2013

Drive Installation or ReplacementSpectra T200, T380, T680, T950, and T-Finity Library

21

Drive Firmware Mismatch

Use the instructions in your User Guide or in the

Spectra T-Series Libraries Drive Firmware Upgrade Instructions to compare the
firmware level of the new drive to the currently recommended level and
update the firmware if necessary.

Connecting the Cables

Connect the cables according to the guidelines in this section.

Drive Connectivity

The drives in the library can have either a Fibre Channel interface or a SCSI
bus interface.

Note:

SCSI interface drives are not compatible with the T-Finity library.

 Fibre Channel drives connect directly to the host using a Fibre Channel

arbitrated loop or fabric, as described in

Partitions Using Direct-

Attached Fibre Channel Drives (all libraries) on page 22

.

 SCSI drives are connected using a QIP to provide the Fibre Channel

connectivity, as described in

Partitions Using QIP-Attached SCSI Drives

(T200, T380, T680, and T950 libraries) on page 23

. The QIP acts as a

bridge to connect SCSI drives in the DBA to a Fibre Channel fabric or
arbitrated loop. The terminator for each SCSI bus in the DBA is
installed on the drive’s external LVD SCSI connector.

Keep in mind that all of the drives on an arbitrated loop or SCSI bus must
share the data transfer capacity (bandwidth) of the interface. Having
multiple devices on the same loop can negatively impact the performance
of all the devices.

Important

Always make sure that you have the most current firmware for your drives. Check
the Drive Firmware tab on the Software, Firmware and Drivers page of the
Technical Support portal for the latest supported firmware, as well as important
notifications.

Important

Always download drive firmware from the Spectra Logic website to ensure that the
latest firmware posted by the drive manufacturer has been qualified by Spectra Logic.

Task

Cable Connection

Replaced a drive

Connect the cables to the same positions they were
connected to on the old drive.

Installed a new
drive

Connect the cables as described in

Drive Connectivity on

page 21

.

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