Chapter 4: Configuring the Library
Configuring Tape Drive Parameters
66 Quantum Scalar i40 and Scalar i80 User’s Guide
Note: If the affected partition is online, it will be taken offline before
the parameters are set, and brought back online after they are
set.
Table 5 Fibre Channel Tape
Drive Configurable Settings
Setting Description
Loop ID A unique loop ID is selected by default for all FC tape
drives i
nstalled in the library. For example, the tape
drive installed in the top drive bay is assigned a
default loop ID of 61. The tape drive installed in the
bottom drive bay is assigned a default loop ID of 63.
If you change the default loop IDs, make sure each FC
tape
drive with a topology setting of Auto (LN), Loop
(L), or Auto (NL) has a unique loop ID.
Requested
To
po log y*
The requested topology connection mode can be set
to one of the following:
• Auto (LN) — Auto-configure trying L-Port first
• Loop (L) — Force L-Port
• Point to Point — Force N-Port
• Auto (NL) — Auto-configure trying N-Port first
(d
efault)
Requested
Sp
eed*
The requested interface speed can be set to Auto
(default), 1 Gb/s, 2 Gb/s, 4 Gb/s, or 8 Gb/s, depending
on the tape drive.
When you set the speed to 4 Gb
/s or 8 Gb/s on the
Web client, a caution message displays informing you
that the speed selection may not be applicable to all
FC tape drives installed in the library. Acknowledge
the message by clicking OK.
* If the requested FC topology and speed settings are not supported, the next
appropriate settings are negotiated. On the Web client, the Setup - Drive
Settings screen displays both the requested and the actual FC topology
connection mode and interface speed. If FC drives are not connected to the
host, the negotiated actual settings appear on the screen as “unknown.”
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