Redundant Connectivity - Spectra Logic Spectra T950V User Manual

Chapter 2 — Architecture Overview

Redundant Connectivity

In a high‐availability environment, the ability to maintain communications
between the host systems and the library and its drives in the event of a
connection failure is essential.
 The library can be configured to use two controllers (RIM2s) and the
The controllers must be running the same firmware version. If you install the
Important
second controller after you update the BlueScale software, the BlueScale versions
for the two controllers may be different. Update the BlueScale software as
described in
correct the reported firmware mismatch.
Drives used to provide the robotic control path cannot be configured with
Important
controller failover, however you can export the same changer interface over
multiple drives in the partition to provide redundancy as long as your software can
support this. These multiple paths cannot be used at the same time. Assigning
multiple drive exporters to one partition reduces the total number of partitions
that can be configured in the library.
 The servers and switches used to access the full‐height Fibre Channel
Controller Failover
The BlueScale Controller Failover feature uses two RIM2s failover pair.
One controller in the pair is the primary controller and the other is the
secondary controller. From the host perspective, the primary controller is
the only controller present. The secondary controller is not visible to the
host.
August 2019
BlueScale Controller Failover feature to provide redundant
connectivity to the media changer functionality of the library. See
Configure Controller Failover on page 120 for information about
configuring controller failover.
Updating the BlueScale Software and Library Firmware on page 391
drives in the library can use failover software to provide redundant
connectivity through the two ports on each drive.
High-Availability Configurations
User Guide—Spectra T950V Library
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