HP StorageWorks 9100 Extreme Data Storage System administration guide V1.0.2 (AN540-96018, February 2010)

CAUTION:
This can damage a system and make it impossible to operate. Use only if instructed by HP technical
support.
mysql> update mxso_servers set mxso_version=’junk’ where name=’glory1’;
To delete records from a table (same warning):
mysql> delete from mxso_hbas where hba=’PBACBA49VW15D9’;
If you damage the database, you can attempt to restore it from backup. See Restoring a database
backup.
System log files
Each server has the standard log files in /var/log. Generally, /var/log/messages contain most
useful information.
In addition, HP ExDS9100 processes create log files as follows:
• /var/log/hp/exds/configd/configd.log—Contains a log of the backend processing
and configurations actions (such as install server, reconfigure system, and so on)
This log might explain why configuration commands have failed.
• /var/log/hp/exds/mxso.log
• /var/log/hp/exds/mxso_install.log—Contains a log from when the exdsgr command
was first run as part of the installation process.
• /var/log/hp/exds/mxso_fw_upgrade.log—Contains a log of the last time the OA was
configured by the HP ExDS9100 system software.
• /var/log/postlog2—Contains a log from when this server was installed.
Restoring a database backup
Use the exdsmgr restore database_backup command to restore the database:
1. Log in to the server where the desired database copy resides.
2. Use the show database_backups command to identify the backup you want:
# pdsh -w glory[1-8] exdsmgr show database_backups
where glory[1-8] represents all the servers in your system. The backups are located on the /
var/mxso.local/db directory on each server.
3. Restore the database using the following command (on the server from which you wish to restore
the backup):
# exdsmgr restore database_backup 3
where 3 is the desired backup.
4. Reboot all servers in the HP ExDS9100 system.
Recovering from corrupt or lost utility filesystem (/var/mxso)
If the utility filesystem (/var/mxso) becomes corrupt and cannot be recovered, the exdsmgr command
cannot be used to manage the system. If the /var/mxso filesystem is corrupt, you can attempt to
Troubleshooting132