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
● Multiple LUN support (most SAS RAID controllers do not support multiple
LUNs). Consult your sales representative or a certified service engineer for
compatibility of HBA, library and your server.
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.
To Next Page
Loading...
