User's Manual

186 Monitoring and maintaining FSE
Low storage space detection
To automatically detect that your storage space is running out, use the HSM Health Monitor (HHM) utility,
which is designed to prevent an FSE system to run out of resources. HHM detects situations when the
amount of data on monitored items rises above or drops below two configurable thresholds. When such a
situation occurs, configurable actions are started. The items that can be monitored are the following:
• file systems with FSE databases and system files
• HSM file systems
• FSE media pools assigned to HSM file systems
For each monitored item a warning threshold and a critical threshold are defined. Typically, when the
warning threshold is crossed upwards or downwards, users or administrators are informed by e-mail.
When the critical threshold is crossed upwards, an action should be typically started to prevent the system
from running into unrecoverable problems. Since in such a situation FSE would continue operating until it
ran out of media, there is a chance to recover. Therefore, when the critical threshold is crossed downwards,
another action should typically be taken to retain the usability of the system.
To start the HSM Health Monitor (HHM) daemon (service) on the local system, if it is not already started
during FSE installation, perform the following step:
Linux specific
Invoke the following command:
Windows specific
Using the Services tool in the Administrative Tools group of the Control Panel, start the HSM Health
Monitor Service. The service is named FSE HSM Health Monitor.
Linux specific default behavior
By default, HHM monitors the FSE system directories on HHM server and its clients and sends an e-mail to
the root account root@localhost when one of the following is true:
• the warning threshold is crossed upwards
• the warning threshold is crossed downwards
• the critical threshold is crossed upwards
• the critical threshold is crossed downwards
By default, the file systems with FSE databases and system files that are monitored are:
• /var/opt/fse/
[2003/12/03 15:29:47] Finished FSC chk vol num: 3 (checked: 73599, missing in FSC:
0, missing on media: 0, mismatch: 0, no NSC: 0)
[2003/12/03 15:29:47] Started FSC chk vol num: 4, medium: dm001
[2003/12/03 15:29:55] Finished FSC chk vol num: 4 (checked: 67326, missing in FSC:
0, missing on media: 0, mismatch: 0, no NSC: 0)
[2003/12/03 15:29:55] Started FSC chk vol num: 5, medium: dm001
[2003/12/03 15:30:03] Finished FSC chk vol num: 5 (checked: 75999, missing in FSC:
0, missing on media: 0, mismatch: 0, no NSC: 0)
[2003/12/03 15:30:03] Finished FSC chk MED: dm001 (checked: 366506, missing in
FSC: 0, missing on media: 0, mismatch: 0, no NSC: 0)
[2003/12/03 15:30:03] FINISHED FSC chk grand TOTAL : (checked: 578701, missing in
FSC: 2, missing on media: 0, mismatch: 0, no NSC: 0)
[2003/12/03 15:30:03] Finished (JobID: 20031203000012).
# /opt/fse/sbin/tools/hhm start