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If the library will be sharing the rack with other equipment, place heavy devices, such as disk arrays, in
the bottom of the rack to reduce the chance of the rack tipping.
FC connection information
Connect the FC tape drive directly to the server with an HBA or indirectly through a SAN with an FC
switch.
Table 14: FC drive interface speeds
LTO generation
LTO-6, LTO-7, LTO-8
Most supported tape drives have two FC ports. Only one port can be used at a time, but both ports can
be connected for path failover or with software that supports multipath. If you are using only one port, you
can use either port. Path failover is a licensed library feature.
Direct connection
The host must have a 2 Gb, 4 Gb, 8 Gb, or 16 Gb FC HBA. A 4 Gb HBA is recommended for LTO-4 tape
drives. An 8 Gb or faster HBA is recommended for LTO-5 and later generation tape drives. To verify that
an HBA is supported on your server and qualified for the tape drive, see the DAPR compatibility matrix at:
http://www.hpe.com/storage/DAPRcompatibility
A server that has FC-attached hard drives performs best with at least two FC ports. Using the same FC
port for disk and tape drive access can cause performance degradation.
SAN connection
All switches between the host and the tape drive must be of the appropriate type. A 2 Gb switch in the
path might cause performance degradation when backing up highly compressible data.
Configure zoning on the FC switch so that only the backup servers can access the tape drive. For more
information, see the switch documentation.
Cable requirements
An FC cable is required for each FC port you plan to use. The tape drive has an LC-style connector. The
maximum cable length is based on the tape drive and external cable type.
Cable type
OM2
OM3, OM4
SAS connection information
The server must have a SAS host bus adapter with an external connector.
Table 15: SAS drive interface speeds
LTO generation
LTO-6, LTO-7, LTO-8
The library uses two SCSI logical unit numbers (LUNs) and requires an HBA with multiple LUN support.
Most Hewlett Packard Enterprise SAS RAID controllers support tape devices; many other SAS RAID
Supported speeds
2 Gb, 4 Gb, 8 Gb
2 Gb
0.5 – 300 m
0.5 – 500 m
Supported speeds
1.5 Gb, 3 Gb, 6 Gb
4 Gb
0.5 – 150 m
0.5 – 380 m
FC connection information
8 Gb
Not supported
0.5 – 150 m
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