30
ETERNUS
LT20
S2
Connecting
Installing the Tape Library
3.6.1.1
Fibre Channel
Fibre Channel allows for an active intelligent interconnection scheme, called a
Fabric, to connect devices. Everything between the ports on Fibre Channel is
called the Fabric. The Fabric is most often a switch or series of switches that
takes the responsibility for routing.
3.6.1.2
SAS
SAS features
●
Serial data transfer to and from storage devices as disk and tape drives
●
4 SAS channels per SAS HBA port (typical, not mandatory) for a maximum
of 4 storage devices per HBA port
●
Unique identifying of a SAS drive by its WWN (World Wide Name) or WWID
(World Wide Identifier)
Host Bus Adapter
The HBA has to meet following requirements:
●
External SAS connector
●
Cable
V
CAUTION
Fujitsu recommends a maximum SAS cable length of
4
meters from HBA
to one tape drive.
Do not use any adapter or converter between HBA and tape drive(s).
3.6.1.3
Preparing the Host
V
CAUTION
Use proper procedures to prevent electrostatic discharge (ESD). Use
wrist-grounding straps and anti-static mats when handing internal
components.
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