Practical Considerations; Hot-Swappable Cables; Power Usage; Power Cycle (Tape Drive On) - Quantum DLT S4 User Manual

Practical Considerations

Hot-Swappable Cables

Power Usage

Power Cycle (Tape Drive
On)
Failure to Obtain a Loop
Address
DLT-S4 Product Manual
This section describes considerations specific to the DLT-S4 Fibre
Channel tape drive.
Fibre Channel cables are "hot swappable," which means that you may
7
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.
DLT-S4 Fibre Channel tape drives use slightly more power than SCSI-
7
configured tape drives. See the DLT-S4 Product Specification (81-81279-xx).
When the tape drive completes the power cycle process (including POST)
and the port is initialized, the Fibre Channel port is enabled and will
7
attempt to initialize on the attached Fibre Channel topology.
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 Power-On Self-Test
If the tape drive is unable to obtain an address (fabric assigned,
previously assigned, hard assigned, or soft assigned), it goes into a non-
7
participating mode and immediately implicitly logs out all logged-in
ports.
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.
Chapter 7 Fibre Channel Interface
on page 113 for information about POST.
Practical Considerations
58
7