McDATA ULTRANETTM EDGE STORAGE ROUTER 3000 Manual Do Utilizador

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13
Troubleshooting and Diagnostics
 
13-15
Troubleshooting FC/SCSI Tape Pipelining (Device Extension)
This command issues an inquiry to all devices listed in the 
UltraNet Edge 3000’s FC/SCSI Tape Pipelining LUN map. The 
output from this command lists which devices the UltraNet 
Edge Storage Router can access.
c. Run the 
ttag luns
 
command again. 
The information obtained from the inquiry (
ttag probe
) will 
now be included in the UltraNet Edge 3000’s FC/SCSI Tape 
Pipelining LUN map.
5. Are the devices mapped in the correct order in the UltraNet Edge 
3000’s FC/SCSI Tape Pipelining LUN map?
NOTE: 
In most cases, the order of the devices does not matter. If you’re 
trying to re-order the devices through a FC-SCSI bridge, see step  in this 
section.
a. Run the 
ttag luns
 
command to inspect the UltraNet Edge 
3000’s FC/SCSI Tape Pipelining LUN map.
b. If reordering is required, issue the 
ttag wwnPurg 2 all 
command. 
This command removes all dynamically discovered
 
entries 
from the table.
c. Issue the 
ttag wwnDisp
 
command to display the list of 
purged entries.
d. Issue the 
ttag wwnRel 2 
command where x is the entry 
listed in the purged entries table to be placed in the UltraNet 
Edge 3000’s FC/SCSI Tape Pipelining LUN map at LUN 1.
e. After an entry is removed from the purged entries table, issue 
the 
ttag wwnDisp
 
command to display the new purged 
entries table.
f. Continue issuing the 
ttag wwnDisp
 
and 
ttag wwnRel 2 x
 
commands until the LUN map is complete.
g. This LUN map is automatically saved to disk. 
The 
ttag wwnPurg 2 x
 command only temporarily removes 
entries from the LUN map. These entries may be included 
back in the LUN map after the UltraNet Edge 3000 reboots. To 
permanently remove an entry from the LUN map, issue the