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Raising Alerts from the XenData Event Log on Windows Storage Server 2003 and Windows Powered NAS XenData Technical Note 408 Updated: February 14, 2005 Copyright 2004 - 2005 XenData Limited. All rights reserved. 1. About Windows Storage Server 2003 and Windows Powered NAS Microsoft® Windows Storage Server 2003 and the Windows Powered NAS operating systems are based on Windows Server 2003 and Windows 2000 Server, respectively, and meet the special needs of network attached storage servers. Both NAS operating systems employ a web user interface, the Web UI, which is an HTML-based application used to configure and manage the server appliance from a remote client. The Web UI framework supports three types of items: tasks, resources, and alerts:
2. About XenData Archive Series Software XenData Archive Series software manages a Windows file server and provides high performance archiving to a tape library and RAID. The software is ideal for managing large volumes of data generated by applications such as digital video, medical imaging, email archiving, document imaging, aerial photography, satellite imaging and other scientific applications. The software virtualizes a magnetic disk logical drive (typically on RAID) and a tape library as a single server logical drive which contains a standard Windows file system. The system administrator defines policies that determine where and when files are physically stored. These policies support hierarchical storage management, automatic tape cartridge replication and the use of unalterable WORM tape. 3. XenData Event Log XenData software generates a wide range of useful event log entries that are stored in a XenData Event Log within the Microsoft event log framework, as illustrated below.
4. Raising Alerts from Event Log Entries
The
Microsoft NAS operating system allows mapping of event
logs to Microsoft Alerts that are displayed on the Web
UI status page and may also be sent to designated
recipients by email. This is achieved by making
appropriate registry updates in the Windows Event
Filter. The Windows Event Filter receives notification
whenever a new event is sent to the Event Logs and
determines whether that event should raise a
corresponding Microsoft Alert.
The Administrator
can change the registry settings to make XenData Event
Log entries generate Microsoft Alerts by editing the
HKLM\Software\Microsoft\ServerAppliance\EventFilter\Events
registry key values.
The table below describes the key values that make up an
event definition. The example shown creates a Microsoft
Alert of type 'Information' whenever a XenData Event with ID
7013 is sent to the
Event Logs. Note that Event ID 7013 is of type
'Warning' and it indicates that an off-line file has
been requested. In this example the Alert is displayed
on the Web UI Status page for 10 minutes and is then
automatically cleared.
This example is further
illustrated below.
The alert logs are defined in a registry key located as
follows: \SOFTWARE\Microsoft\ServerAppliance\ElementManager\WebElementDefinitions\
. The alert definition should identify an appropriate
DLL (such as sagenmsg.dll) that provides the resource to
raise the Microsoft alert. 5. Setting Email Alerts The server appliance can be configured to generate an automatic email notification when a Microsoft Alert is raised. The system can be configured to provide notification when any type of alert is raised or only for specific alert types, such as informational, warning, or critical alerts, as illustrated below.
You may have alert email sent to multiple addresses by typing the addresses into the To box, separated by a comma. To send email to Microsoft Exchange Server or Lotus Notes, you need to provide the name of the specific SMTP gateway. You must put the SMTP gateway server name, or IP address, in the SMTP server field in the Web user interface (UI).
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