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Beforeyoustart
Ultrium tape drivesarehigh performance,Ultra3 SCSIdevicesdesignedto operate on a low
voltage,differentialSCSIbus(LVDS).TheycanbeconnectedtoaSCSIconnectiononaserver
or fibre channel/SCSIbridge.Toget optimumperformance from yourtapedriveyouneed a
SCSIbusthat can transferdata at a ratethat supports the tapedrive’s maximumburst transfer
speed of 160 MB/second.WerecommendanUltra 3 (160) orUltra 4 (320)SCSIbus.
Beforestarting toinstall yourtape drive,youshould consider the following:
How doIuse the tape drive withmysystem?
Check the usage models on page 7. Thisshowshow the Ultriumtape drive canbeused in
different system configurations; directattach,networkattachand storage area network.
How doIconnect the drive to my server or fibre channel bridge?
Your tape driveis supplied with a68-pin,wide, VHD-to-HDSCSIcabletoattach to thehost
server or fibre channel bridge.
Fibre channel connection
If you areusingyourtape driveonafibrechannel (FC) network,youwill needa FC/SCSI
bridge with aspareLVDSSCSIport with a 68-pin, very high density (VHD),wideSCSI
connector.
If you areattaching your tape drivetoa SANenvironment,refer to your SAN solution
collateralorconfiguration guidesforfurtherdetails.
Server connection
If you are attaching the drive to a server, you will need a properly installed and configured
SCSI host bus adapter (HBA) or a built-in SCSI controller on your server with a spare LVDS
SCSI port with a 68-pin, very high density (VHD), wide SCSI connector.
For optimum performance your tape drive should only be connected to an Ultra 3 (160) or
Ultra 4 (320) host bus adapter or SCSI controller and it should be the only device on the SCSI
bus. Do not attach the drive to the same SCSI bus as your disk drive or RAID controller.
See also Table 1, “supported SCSI bus types,” on page 9.
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