Server SAS connection
If you are attaching the drive to a server, you need a properly installed and configured SAS host bus
adapter (HBA) or a built-in SAS controller on your server with a spare SAS port. For optimum
performance, your tape drive must be connected to a 6 Gb or faster SAS host bus adapter or SAS
controller, but the drive will also function with a 3 Gb SAS connection.
Replacing a drive
LTO Ultrium removable drives can be removed and replaced without powering down the tape array and
without interrupting operations to the other drives in the array. However, note the following:
• If all drives in the tape array are powered up when the system is turned on, the host will be aware of
those drives. You can remove any drive and replace it with another without disrupting other tape drives
in the system.
• If a drive is not powered up or you place a drive in an empty slot after the system has been powered
up, the system may have to be reset before the host will recognize the drive.
• Removable drives allow modules to be replaced while powered up as long as no data is being
transmitted from the system to the module or the opposite way.
Installing in a library
Rear panel and connectors
The rear panel contains the connectors that allow the tape drive to communicate with the tape library and
host computer system. The panel includes the following connectors:
Library interface (ADI) (for automation use). For details of the automation connector, see Automation
interface on page 54.
On Fibre Channel drives only:
• Power connector (FC drives only)
Half-height drives use a Molex microfit 4-pin power connector to supply the 5V and 12V power to the
tape drive.
• Fibre Channel connectors
Two Small Form-factor Pluggable (SFP) duplex-LC Fibre Channel transceivers. Depending on the
specific configuration, only one SFP FC transceiver may be installed.
44 Server SAS connection
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