8-26
TS3400 Tape Library Maintenance Information
Figure 8-2. Host Attachment Example
Note:
Port 1 of a 3592 is connected to two hosts. Host drivers are configured so that
one initiator is at ID address 7 and one initiator is at ID address 6. Tape special
file names on each host are independent and may be different.
Inquiry Command
Note:
This section depicts a mix of SCSI and fibre inquiry sequences of events for an
inquiry of the tape drives.
Inquiry Sequence:
1.
To check installed tape devices, type the
lsdev -Cc tape
command. From the
listing of devices, remember the ones you are going to test. In the following
example, fibre devices rmt0 and rmt1 are available, which indicates they can
communicate with host. The fibre address is not shown via this command.
The SCSI devices rmt2 and rmt3 are available and at port addresses (2,0) and (1,0)
respectively. These are SCSI addresses 2 and 1.
Figure 8-3. Device Fibre Addresses – Available
Figure 8-4. Device Fibre Addresses – Defined
Perform the following to determine the port address (FCP ID) and port name (FCP
World Wide Name). The example in the following text refers to the device
rmt1
. Its
TAPEUTIL
TAPEUTIL
Tape Special File
Tape Special File
Tape Device
Driver
Tape Device
Driver
Adapter Device
Driver
(ID 7)
Adapter Device
Driver
(ID 6)
To Host
Port 0
Port 1
3592 Tape Drive
a14m0019
$ lsdev -Cc tape [enter]
rmt0 Available 30-70-01 IBM 3592 Tape Drive and Medium Changer (FCP)
rmt1 Available 30-70-01 IBM 3592 Tape Drive and Medium Changer (FCP)
rmt2 Available 10-70-00-2,0 IBM 3592 Tape Drive and Medium Changer
rmt3 Available 10-70-00-1,0 IBM 3592 Tape Drive and Medium Changer
rmt0 Defined 00-02-00 IBM 3592 Tape Drive and Medium Changer
FCP
rmt1 Available 00-02-00 IBM 3592 Tape Drive and Medium Changer
FCP
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