Exabyte 221L, Product Manual

Page: 50 / 208

34
P
RODUCT
M
ANUAL
1014258
C
HAPTER
3—C
ONFIGURING THE
L
IBRARY
To set parity checking:
1.
1. 1.
1. If the security option has been enabled, disable it (see page 50 ).
2.
2. 2.
2. Press
[MENU]
to display the menus (or return to the top of the menu
selections). Press the down arrow key until “SCSI Menu” appears on the
screen, then press
[ENTER]
.
3.
3. 3.
3. Press the down arrow key until “SCSI Parity” appears, as shown below. This
screen shows whether parity is enabled (1) or disabled (0).
4.
4. 4.
4. Press
[ENTER]
. The following screen appears.
5. 5. 5. 5. Use the up or down arrow key to select “1” to turn parity checking on or “0”
to turn parity checking off, then press
[ENTER]
. The screen shows the new
setting.
S
ETTING
F
IBRE
C
HANNEL
C
ONFIGURATION
O
PTIONS
(221L-FC)
For the 221L-FC library, you can set options that specify how the library and
tape drive(s) obtain Loop IDs on a Fibre Channel loop. You can also specify
whether the tape drives use the world-wide names (WWNs) set by their
manufacturer or WWNs generated by the library (see page 37 ).
During Fibre Channel loop initialization, each device on the loop is assigned a
unique Loop ID between 0 and 125 (00h and 7Dh). You can request specific
Loop IDs by specifying values through the operator panel. You can also
specify whether the library uses hard addressing or soft addressing to obtain
Loop IDs, as described below.
Hard Addressing If desired, you can use the Require Hard ID option to force
the library and tape drive(s) to use the Loop IDs that you specify. During loop
initialization, the library and drive(s) attempt to obtain the IDs you specify
through the operator panel. If a requested Loop ID is already in use by
another device on the loop, the library or tape drive requesting that ID will not
be able to participate on the Fibre Channel loop.
Soft Addressing By default, the library and tape drive(s) use soft addressing
to obtain their Loop IDs. When using soft addressing, the library and tape
drive(s) first attempt to obtain the Loop IDs you specify through the operator
panel. If an ID is already in use by another device on the loop, the library or
drive requesting that ID is assigned an another available ID.
S C S I P a r i t y
O p t i o n : 1
S C S I
P a r i t y ? 1
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