HP Surestore E Tape Library Model 6/60 HP SureStore E Tape Library Models 2/20 - Page 106

AL_PA Arbitrated Loop Physical Address for loop connections, or

Page 106 highlights

TIP NOTE Library Administration Configuring the Library for Fibre Channel 3. A message displays the following information: • Fibre Channel interface type (LVD or HVD SCSI) • SCSI bus status Select [MORE]. 4. A message displays information for the CURRENT STATUS, including: • Link status • Connection type (loop or fabric) • AL_PA (Arbitrated Loop Physical Address) for loop connections, or a hex address for fabric connections Select [MORE]. 5. A message displays information for the CURRENT SETTINGS, including the addressing assignment method (hard or soft) and the AL_PA for loop connections. Select [MORE]. 6. A message displays information for the FUTURE SETTINGS. This allows you to input the addressing assignment method and AL_PA that you want to use at a later time, without affecting your current connection. (Changes to the FUTURE SETTINGS will take effect on the next power up or board reset.) For multi-level libraries, settings can be changed simultaneously for each level of the library by changing the FUTURE SETTINGS and then powercycling the library. • The default addressing is hard addressing with auto-select enabled. Hard addressing allows you to set and maintain a fixed address, but may result in address conflicts. Soft addressing looks for an unused address on every power cycle, so the address might change. Since AL_PAs can change with soft addressing, some backup software applications may have difficulty locating the library in this mode. Check the backup software documentation to ensure soft addressing is supported before selecting this mode. 3-16 Chapter 3

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Library Administration
Configuring the Library for Fibre Channel
Chapter 3
3-16
3.
A message displays the following information:
Fibre Channel interface type (LVD or HVD SCSI)
SCSI bus status
Select
[MORE]
.
4.
A message displays information for the
CURRENT STATUS
, including:
Link status
Connection type (loop or fabric)
AL_PA (Arbitrated Loop Physical Address) for loop connections, or
a hex address for fabric connections
Select
[MORE]
.
5.
A message displays information for the
CURRENT SETTINGS
,
including the addressing assignment method (hard or soft) and the
AL_PA for loop connections.
Select
[MORE]
.
6.
A message displays information for the
FUTURE SETTINGS
. This
allows you to input the addressing assignment method and AL_PA
that you want to use at a later time, without affecting your current
connection.
(Changes to the
FUTURE SETTINGS
will take effect on the
next power up or board reset.)
TIP
For multi-level libraries, settings can be changed simultaneously for each
level of the library by changing the
FUTURE SETTINGS
and then power-
cycling the library.
The default addressing is hard addressing with auto-select
enabled. Hard addressing allows you to set and maintain a fixed
address, but may result in address conflicts. Soft addressing looks
for an unused address on every power cycle, so the address might
change.
NOTE
Since AL_PAs can change with soft addressing, some backup software
applications may have difficulty locating the library in this mode. Check
the backup software documentation to ensure soft addressing is
supported before selecting this mode.