Chapter 3 Configuring Your Library
Setting Tape Drive Parameters
Scalar i500 User’s Guide 85
• Auto (NL) — Auto-configure trying N-Port first (default)
• 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 drive type).
• If the requested FC topology and speed settings are not supported,
the next appropriate settings are negotiated. On the Web client, the
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.”
Notes About Point to Point:
- You can use Point to Point if the tape drive is connected
via a switch.
- You can use Point to Point with HP drives if the tape
drive is connected to a host.
- You cannot use Point to Point if the tape drive is
connected directly to a host.
- You cannot use Point to Point if the tape drive is
connected to an FC I/O blade.
- You must use Point to Point if the tape drive is being
used for control path failover (see Configuring Control
Path Failover on page 151) or data path failover (see
Configuring Data Path Failover
on page 156). If a tape
drive is being used for control path failover or data path
failover, you cannot change its topology from Point to
Point to anything else.
Caution: LTO-5, LTO-6, and LTO-7 Fibre Channel tape drives
can be configured for speeds of up to 8 Gb/s. If they
are configured for 8 Gb/s, you should connect them
directly to a host and not to an FC I/O blade, because
the FC I/O blade only allows speeds up to 4 Gb/s. If
you connect an LTO-5 Fibre Channel tape drive to an
FC I/O blade, you must configure the tape drive
speed to 4 Gb/s or less.
Note: On the Web client, the
Drive Settings screen displays tape
drive information in tables. Bold column headings in the tables
can be sorted. For example, selecting the
Location column
heading will sort by location coordinates.
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