Quantum LTO-8 HH SAS, Technical Reference Manual

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Chapter 2: Introduction
Inhibiting Firmware Down-Leveling
18 QuantumLTO-8 HH SAS User’s Guide
Application-managed encryption is supported on AIX, Windows Server,
Linux, and Solaris. Encryption requires the latest device drivers available
on the web site:
http://www.quantum.com/serviceandsupport .
Inhibiting Firmware Down-Leveling
The drive provides the capability to prevent loading and installing drive
microcode by way of a Field Microcode Replace (FMR tape) if the
firmware level contained in the FMR tape is older than the code level
already installed. This option is controlled by the host application. No
checking is done if the firmware level is loaded by way of the host
interface or the library interface.
SAS Interface
The drive has a dual port 6 Gbps SAS (Serial Attached SCSI) host
interface.
A drive with a SAS interface can be linked directly to controllers. SAS is a
performance improvement over traditional SCSI because SAS enables
multiple devices (up to 128) of different sizes and types to be connected
simultaneously with thinner and longer cables; its full-duplex signal
transmission supports 6.0 Gb/s. In addition, SAS drives can be hot-
plugged.
SAS drives will auto-negotiate speed. There are no configurable
topologies thus no feature switches associated with SAS.
Physical Characteristics
The drive contains a dual port, SFF-8088 SAS connector.