Connecting To A Fibre Channel Router Or By Sas To A Server Or Router; Fibre Channel Connection; Server Sas Connection; Replacing A Drive - HP LTO Ultrium Technical Reference Manual

Connecting to a Fibre Channel router or by SAS to a server or router

Individual SAS tape drives are connected to their hosts via the SAS connectors on the back of the
tape array. They do not require any SAS cables to plug into the tape array. However, you do need
cables to connect the tape array with the SAS host or expander.

Fibre Channel connection

If you are using your tape drive on a fibre channel (FC) network, you will need a FC/SAS router. If
you are attaching your tape drive to a SAN environment supplied by HP, refer to your SAN solution
collateral or configuration guides for further details.

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 should only be connected to a 6 GB SAS host bus adapter or SAS
controller, but the drive will also function with a 3 or 1.5 GB SAS connection.

Replacing a drive

HP 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:
• In Berkeley mode, the tape position will remain unchanged by a device close operation.
• In AT&T mode, a device close operation will cause the tape to be repositioned just after the next
tape filemark (the start of the next file).
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 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 will 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 vice versa.

Installing in a library

Rear panel and connectors

CAUTION:
LTO Ultrium tape drives are not installable or replaceable by end-users, so the attachment or removal
of FC, SAS, power and other cables between the tape drive and the tape library should only be
carried out be service-trained personnel authorized by the tape library supplier. The connectors are
not field upgradeable.
The rear panel contains the connectors that allows the tape drive to communicate with the tape library
and host computer system. The panel includes the following connectors:
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