SNC 4000 User’s Guide
45
Check the Host Event Log
Check the event log on the FC host. Look for the most recent entries and check to see if there are any FC
HBA driver errors. If there are, go to
Fibre Channel MAP
on page 52.
Database Full MAP
Perform these steps if event code 42 is reported. Event code 42 indicates that the persistent address map
database is full.
Use the following procedure to free up database entries that are no longer needed, and keep the devices
that are currently attached at the same assigned LUNs. For more information on the commands used in this
procedure, see
Commands Listed Alphabetically by Function
on page 63.
1
Connect a service terminal to the SNC.
2
Press
Enter
at the service terminal. If the prompt is not displayed, go to
Service Port MAP
on page 60.
3
From the service terminal, enter the
mapShowDatabase
command to display the contents of the
database.
4
From the service terminal, enter the
mapShowDevs
command to display LUN assignments for the
attached devices that have been mapped.
5
From the service terminal, enter the
mapWinnowDatabase
command to remove LUN assignments for
devices that no longer need to be kept.
6
Reboot the SNC.
7
After the SNC has finished booting, repeat
Step 3
and
Step 4
to verify that all attached devices have
been mapped.
Device Access MAP
Perform these steps if a host is not able to access SCSI or FC devices. For more information on the
commands used in this procedure, see
Commands Listed Alphabetically by Function
on page 63.
1
Connect a service terminal to the SNC.
2
Press
Enter
at the service terminal. If the prompt is not displayed, go to
Service Port MAP
on page 60.
Check Fibre Channel Port Status
1
Enter the
fcShow
command from the service terminal.
If the
fcShow
command does not display a Firmware State of
Ready
for the attached FC SAN
connection, go to
Fibre Channel MAP
on page 52.
2
If a FC host should have access to SCSI Channel devices, verify that the FC port mode is Target.
The SNC FC port is set by default to Target mode. If the port mode for the host connection was changed
to “Initiator,” the host will not be able to see the SCSI devices.
CAUTION
Use this procedure only when you are sure that the devices you are
interested in are connected and available to the SNC. Devices that are
not currently attached will be removed from the database. You must
reboot the Scalar 24 after performing this procedure for the changes
to take effect.
Summary of Contents for SNC 4000
Page 1: ...www adic com ADICSNC 4000User sGuide ADVANCED DIGITAL INFORMATION CORPORATION...
Page 10: ...4 SNC 4000 Introduction...
Page 40: ...34 Removal and Replacement Procedures...
Page 140: ...134 Service Port Command Reference...
Page 147: ...SNC 4000 User s Guide 141 fcConnPortModeGet...
Page 148: ...142 Diagnostic Command Reference...
