
Chapter 4: Configuring the Library
Configuring Tape Drive Parameters
Quantum Scalar i40 and Scalar i80 User’s Guide 65
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 installed 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
Top olo g 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
(default)
Requested
Speed*
The requested interface speed can be set to Auto
(Auto-negotiate — default), 1 Gb/s, 2 Gb/s, 4 Gb/s, or
8 Gb/s, depending on the tape drive. For example,
LTO-4 drives will not support speeds faster than
4 GB/s, and LTO-6 tape drives will not support speeds
less than 2 Gb/s. .
* Auto tries to use the most appropriate/fastest drive settings. 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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