HP StorageWorks Scalable File Share - Manual (Page 230)

Troubleshooting 9–6
3. Connect to the remote console of the server, as follows:
# hpls_console --server server_name --remote
4. During the power on/start-up phase on the server, enter the ROM-Based Setup Utility (RBSU) by
pressing the
F9
key when prompted.
5. The MAC addresses for NIC 1 and NIC 2 on the server are displayed on the right-hand side of the
screen; record the value for NIC 1.
6. To update the database, enter the command shown in the following example at the
sfs>
prompt. In
this example, the server is
south4
and the MAC address for NIC 1 is
00:01:02:03:04:05
:
sfs> set nic server=south4 network=nic1 mac=00:01:02:03:04:05
9.9 Setting Lustre debug level
If you want to permanently enable the Lustre debug facility, perform the following steps:
1. Set the debug level in the database as follows:
# mysql hplsdb
mysql> update hpls_attributes set val=’-1’ where attribute=’portals.debug’;
mysql> update hpls_attributes set val=’-1’
-> where attribute=’portals.subsystem_debug’;
In this example, the debug level is set to
-1
, which turns on all debugging. HP recommends that you
use a debug level of
0x3f0400
.
2. To bring the change into effect, use one of the following options:
• Stop all of the file systems by entering the
stop filesystem filesystem_name
command
for each file system, then start the file systems again by entering the
start filesystem
filesystem_name
command for each file system.
• Alternatively, if you do not want to stop the file systems, enter the following commands on the
MDS server and on each Object Storage Server:
# echo -1 > /proc/sys/portals/debug
# echo -1 > /proc/sys/portals/subsystem_debug
Setting certain debug levels may impact system performance; consult your HP Customer Support
representative before setting debug levels.
9.10 System database has become corrupted
If the system database has become corrupted, you can restore the database from a backup as described in
Section 6.3.3.
NOTE: If you have deleted any file systems since the backup was created, restoring the backup will not
restore the deleted file system.
9.11 Service LUN has become corrupted
If the service LUN on an Object Storage Server becomes corrupted, you can force the system to reformat it
as follows:
1. Enter the
show lun
command to identify the number of the service LUN. In the example in these
instructions, the service LUN is numbered 10.
2. Examine the contents of the
hpls_object_states
table, as follows:
# mysql hplsdb