Quantum DLT-S4 Betriebsanweisung
Chapter 7 Fibre Channel Interface
Practical Considerations
DLT-S4 Product Manual
58
Practical Considerations
7
This section describes considerations specific to the DLT-S4 Fibre
Channel tape drive.
Hot-Swappable Cables
7
Fibre Channel cables are “hot swappable,” which means that you may
connect and disconnect them with unit power turned on. Therefore,
unlike some other systems, the tape drive and computer may remain
powered on while you connect the DLT-S4 tape drive to the host
computer.
Power Usage
7
DLT-S4 Fibre Channel tape drives use slightly more power than SCSI-
configured tape drives. See the DLT-S4 Product Specification (81-81279-xx).
Power Cycle (Tape Drive
On)
On)
7
When the tape drive completes the power cycle process (including POST)
and the port is initialized, the Fibre Channel port is enabled and will
attempt to initialize on the attached Fibre Channel topology.
When the tape drive completes the power cycle process (tape drive
When the tape drive completes the power cycle process (tape drive
turned on and POST complete), the device is on-line and capable of tape
drive operations.
See
See
on page 113 for information about POST.
Failure to Obtain a Loop
Address
Address
7
If the tape drive is unable to obtain an address (fabric assigned,
previously assigned, hard assigned, or soft assigned), it goes into a non-
participating mode and immediately implicitly logs out all logged-in
ports.
If the tape drive experiences a power-on reset, or recognizes an
If the tape drive experiences a power-on reset, or recognizes an
LIP (AL_PD, AL_PS), it does not retain a previously acquired address to
use during the next loop initialization.