Users Guide

Table 4. Rear panel component descriptions (continued)
Number Component Description
▌2▐ Power switch The library is powered ON when the power supply switch on the
rear panel is ON (|). The library has no independent power switch
on the front panel.
▌3▐ SAS host interface connector Serial-attached SCSI host interface cable connection. The Ultrium 4,
5, 6, and 7 SAS drives use the SFF-8088 connection at the drive end
and SFF-8088 or SFF-8470 at the host adapter end.
▌4▐ Ethernet port This port is used to connect the library to a network.
▌5▐ Accessor locking screw The accessor locking screw is used to lock the accessor in place
during transportation.
Important: Remove the accessor locking screw before the library is
powered ON.
▌6▐ Air vent These vents allow air to escape from the power supply and tape
drive sled.
Bar code reader
The bar code reader is a part of the library accessor. The bar code reader reads each cartridge bar code
label that identifies the types of cartridge magazines and tape drive that is installed in the library. It also
provides inventory feedback to the host application, Operator Panel, and Web User Interface. The library
stores the customized inventory data in memory. Library firmware supports a 6 or 8-character volume
serial number (VOLSER) on the bar code label on the tape cartridge.
SAS host interface
The Half Height Tape Drives and later, support the Serial Attached SCSI (SAS) interface. The SFF-8088
SAS connector on the Ultrium 5 tape drives and later, are compatible with SAS-1 or SAS-2 cables.
A drive with a SAS (Serial Attached SCSI) interface is linked directly to controllers. SAS is a performance
improvement over traditional SCSI. SAS enables multiple devices (up to 128) of different sizes and types
to connect simultaneously with thinner and longer cables. Its full-duplex signal transmission supports 6.0
Gb/s for S4H and later. In addition, the TL1000 Tape Autoloader is hot-plugged, if necessary. SAS drives
can auto-negotiate speed.
Encryption
The LTO Ultrium 4 and later Tape Drives support host Application Managed Encryption (AME) with T10
encryption methods, for SAS drives. Data encryption is only supported by LTO Ultrium 4 Data
Cartridges and later.
Note: Application Managed Encryption (AME) does not require a key.
The encryption enabled drive contains the necessary hardware and firmware to encrypt and decrypt host
tape application data. Encryption policy and encryption keys are provided by the host application or host
server. A drive digital certificate is installed at manufacturing time. Each drive receives a unique serial
number and certificate. The T10 application validates each drive instance by checking the drive’s digital
certificate.
The LTO Ultrium encryption environment is complex and requires knowledge beyond that of product
trained Service Support Representatives (SSRs). The Encryption function on tape drives, whether it's a
desktop, a stand-alone drive, or within libraries, is configured and managed by the customer. In some
instances, SSRs are required to enable encryption at a hardware level when service access or service
Product description 5