Tolis Group ArGest TGL1800, User Manual

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4 - Connecting the Library
The library is available in three different connectivity methods: SAS (default), parallel SCSI, and Fibre-
Channel. Use the instructions below based on your library model.
The library is capable of using a maximum of one drive for the TGL1800, 2 drives for the Library, and 4
drives for the TGL4480. If more than one drives have been purchased with the library the connectivity
of the two drives must be the same (i.e. SAS, FC, or parallel SCSI). It is not possible to mix the
connectivity methods of different drives (i.e. Using a parallel SCSI drive in the bottom drive bay and a
SAS drive in the top drive bay).
NOTE : When using the library with multiple tape drives, the bottom drive is always the
primary (first) drive. The top drive is the secondary (second) tape drive.
Determine the Connection Type
See Chapter 1 to determine which type of drive connection the library is using. Once determined, use
the steps below for the appropriate connection type.
NOTE : With the release of the Ultrium 5 (LTO-5) tape technology, LTO-5 is not
manufactured in the parallel SCSI interconnect type, only SAS and FC. The Ultrium 4
technology is the last release of LTO to support parallel SCSI interconnectivity.
Planning Configuration: SAS
The server that the library is connecting to must have a SAS HBA with an external connector. TOLIS
Group hardware bundles come with an HBA that must first be installed into the system the library will be
connecting to. If this has not been done, please stop here and install the HBA into the system that the
library will be directly connected to.
NOTE : Most Serial Attached SCSI (SAS) RAID controllers do not support connection to
tape devices. If you did not obtain your SAS HBA with your TOLIS Group hardware
bundle, please make sure that the SAS HBA that the library will be connected to
supports tape libraries on the operating system that is being used.
Connecting the library to a SAS RAID controller that does not support tape libraries may
prevent the system from being able to boot when the library is connected.
Planning Configuration: Fibre-Channel
The Fibre-Channel (FC) tape drive has two FC ports. Only one port may be used at a time, but both
ports can be connected for path failover.
Direct Connection
You will need a 8Gb+ FC HBA. A 12Gb HBA is recommended for optimum performance, but is not
required.
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