HP Q1581A HP StorageWorks DAT SAS Tape Drives User Guide (DW092-90905, Novembe - Page 15

External drives

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• If the host SAS controller has a mini-SAS connector, the supplied cable may be used to connect the tape drive. • If it has a SAS Infiniband-style connector, you must purchase a different cable. Table 2 Cabling options with the SAS internal tape drive Connector type To a dedicated HBA (recommended installation) To an internal Mini-SAS connector To an internal Infiniband-style connector Cable required HP Mini-SAS cable (Part number AP747A) HP Mini-SAS cable (Part number AP747A) HP SAS Infiniband split cable (Part number 406594-002) CAUTION: HP SAS cables contain four data paths, which normally support up to four hard disks. When used to connect to the host SAS controller, both the HP SAS Infiniband and the HP Mini-SAS split cables divert one of these data paths to the tape drive, which means that the data path is no longer available for a hard disk drive. Take care if using this cabling configuration because you may lose the use of one of your hard disk drive bays. See "Connect SAS and power cables" on page 26 for detailed instructions on connecting the SAS cable. External drives External tape drives may be connected to an external SAS port or, if no external port is available, to an internal SAS port. 2-meter and 4 meter cables are available. The cable supplied with the tape drive is suitable for connecting to an external mini-SAS port on a dedicated HBA (recommended) or the host SAS controller. If you have an Infiniband-style port you must purchase a separate cable. An alternative option for HP ProLiant servers is to connect to an internal port on the host SAS controller. This option uses an HP SAS split cable, which must be purchased separately. Be sure to purchase the correct cable for your connector type: mini-SAS or Infiniband-style. If you connect an external drive to an internal SAS port, a spare PCI slot is required to thread the cable through to the motherboard. Table 3 Cabling options with the SAS external tape drive Connector Type Cable required To an external Mini-SAS connector HP SAS Mini-SAS external cable: 406592-001 (2 meter), 406592-002 (4 meter) To an external Infiniband-style SAS connect- HP SAS Infiniband external cable: 406591-001 (2 meter), or 406591-002 (4 meter) To an internal Infiniband-style SAS connector HP SAS Infiniband internal split cable: 406595-001 (2 meter), 406595-002 (4 meter) To an internal Mini-SAS connector HP SAS Mini-SAS internal split cable: 518885-001 (2 meter), 518885-002 (4 meter) DAT SAS Tape Drives 15

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•
If the host SAS controller has a mini-SAS connector, the supplied cable may be used to connect
the tape drive.
•
If it has a SAS Infiniband-style connector, you must purchase a different cable.
Table 2 Cabling options with the SAS internal tape drive
Cable required
Connector type
HP Mini-SAS cable (Part number AP747A)
To a dedicated HBA (recommended installation)
HP Mini-SAS cable (Part number AP747A)
To an internal Mini-SAS connector
HP SAS Infiniband split cable (Part number
406594–002)
To an internal Infiniband-style connector
CAUTION:
HP SAS cables contain four data paths, which normally support up to four hard disks. When used to
connect to the host SAS controller, both the HP SAS Infiniband and the HP Mini-SAS split cables divert
one of these data paths to the tape drive, which means that the data path is no longer available for
a hard disk drive. Take care if using this cabling configuration because you may lose the use of one
of your hard disk drive bays.
See “
Connect SAS and power cables
” on page 26 for detailed instructions on connecting the SAS
cable.
External drives
External tape drives may be connected to an external SAS port or, if no external port is available, to
an internal SAS port. 2–meter and 4 meter cables are available.
The cable supplied with the tape drive is suitable for connecting to an external mini-SAS port on a
dedicated HBA (recommended) or the host SAS controller. If you have an Infiniband-style port you
must purchase a separate cable.
An alternative option for HP ProLiant servers is to connect to an internal port on the host SAS controller.
This option uses an HP SAS split cable, which must be purchased separately. Be sure to purchase the
correct cable for your connector type: mini-SAS or Infiniband-style. If you connect an external drive
to an internal SAS port, a spare PCI slot is required to thread the cable through to the motherboard.
Table 3 Cabling options with the SAS external tape drive
Cable required
Connector Type
HP SAS Mini–SAS external cable: 406592–001 (2 meter),
406592–002 (4 meter)
To an external Mini-SAS connector
HP SAS Infiniband external cable: 406591–001 (2 meter),
406591–002 (4 meter)
To an external Infiniband-style SAS connect-
or
HP SAS Infiniband internal split cable: 406595–001 (2 meter),
406595–002 (4 meter)
To an internal Infiniband-style SAS connector
HP SAS Mini–SAS internal split cable: 518885–001 (2 meter),
518885–002 (4 meter)
To an internal Mini-SAS connector
DAT SAS Tape Drives
15