To Power Off A Switch Gracefully (5.1.0 And Later); High Availability Of Daemon Processes - HP AA979A - StorageWorks SAN Switch 2/8V Administrator's Manual

To power off a switch gracefully (5.1.0 and later)

1. Connect to the switch and log in as admin.
2. Enter the sysShutdown command.
3. At the prompt, type y.
switch:admin> sysshutdown
This command will shutdown the operating systems on your switch.
You are required to power-cycle the switch in order to restore operation.
Are you sure you want to shutdown the switch [y/n]?y
4. Wait until the following message displays:
Broadcast message from root (ttyS0) Wed Jan 25 16:12:09 2006...
The system is going down for system halt NOW !!
INIT: Switching to runlevel: 0
INIT: Sending processes the TERM signal
Unmounting all filesystems.
The system is halted
flushing ide devices: hda
Power down.
5. Power off the switch.

High availability of daemon processes

Fabric OS 5.2.x supports automatic restart of non-critical daemons. Starting these non-critical daemons is
automatic, you cannot configure the startup process. The following sequence of events occur when a
non-critical daemon fails:
1. When a non-critical daemon fails or dies, a RASlog and AUDIT event message is logged.
2. The daemon is automatically started again.
3. If the re-start is successful, then another message is sent to RASlog and AUDIT reporting the successful
restart status.
4. Should the restart fail, another message is sent to RASlog and no further attempts are made to re-start
the daemon.
Schedule downtime and reboot the switch at your convenience. The following table lists the daemons that
are considered non-critical and are automatically restarted on failure.
Table 7 List of daemons that are automatically restarted
Daemon
Snmpd
Webd
Cald
Raslogd
Rpcd
Arrd
Trackd
54 Performing basic configuration tasks
Description
Simple Network Management Protocol Daemon.
Webserver daemon used for WebTools (includes httpd as well).
Common Access Layer Daemon (used by Manageability Applications).
Remote Access Service Log Daemon logs error detection, reporting, handling,
and presentation of data into a format consumable by management tools and
the user.
Remote Procedure Call daemon used by the API (Fabric Access API and
SMI-S).
Asynchronous Response Router (used to send management data to hosts when
the switch is accessed via the APIs (FA API or SMI-S).
Track Changes Daemon.