DX-NAS provides information to users two ways: ◆ Alerts
◆ Logs
About Alerts
All alerts are related to job activity. If you have no jobs or schedules configured, you will never have any alerts. Messages about the status of jobs are displayed on the Alerts tab of the DX-NAS GUI (see Figure 24). There are three types of alerts:◆ Information—these alerts are displayed when jobs are start, complete, or stop.
◆ Warning—these alerts are displayed when minor problems occur. For example, a source scan job will report orphan stubs (that have the data file missing on secondary storage) as warnings.
◆ Critical—these alerts are displayed when migration fails or when scheduled jobs can not be run.
Figure 24 Alerts Tab in the DX-NAS GUI
Printing Alerts
The print function only prints what is visible on the screen.Consequently, if you have a large number of alerts to print, it can be more efficient to export the alerts as a CSV file and then use a spreadsheet or a word processing program to print the file.
About Logs
DX-NAS uses the following log files:– DXNASServerLog_x.log—any messages or errors
generated by the DX-NAS server process are written to this log. The value x is a number that is incremented.
Note: On Microsoft Windows, if you installed using the defaults, the server logs can be found at
C:\Program Files\EMC\DXNAS\Server\logs.
Solaris and Linux
– DXNASLog.log—any messages or errors that are written to the default output stream are captured in this log. In troubleshooting situations, examine this log first. – DXNASServerLog_x.log—any messages or errors
generated by the DX-NAS server process are written to this log. The value x is a number that is incremented.
Note: On Solaris and Linux, if you installed using the defaults, the server logs can be found at /opt/EMC/DXNAS/Server/logs
Setting the Server Log Level
Using the DX-NAS GUI you can set how much information gets written to the log files. The following logging levels can be set, and generally, these levels are listed in order from least information to most information:
◆ Emergency--report information only when a process becomes unusable. This is the least verbose logging.
◆ Alert--report information when action is required and where lack of action could result in the process becoming unusable
◆ Critical--report conditions that prevent the proper operation of a process
◆ Error--report conditions which cause an operation to fail ◆ Warning--report conditions that warn of impending operation
failures
◆ Notice--report normal, but significant, conditions ◆ Informational--report informational messages only
Note: Selecting one of the more verbose logging levels can cause your log files to grow in size very quickly, and large log files can adversely affect system performance. It is strongly suggested that you run in Debug, Informational, and Notice modes only long enough to complete troubleshooting or testing. Afterwards, copy the log files to a different location, and reset the logs by starting and stopping the DX-NAS console server.
Resetting DX-NAS Logs on Microsoft Windows
To reset DX-NAS logs on Microsoft Windows:
1. Log in to the host where you installed the DX-NAS server as the same user that installed DX-NAS.
2. Choose Start > All Programs > Administrative Tools > Services
3. In the Services panel, right-click EMC DX NAS Database and click Stop.
The Stop Other Services dialog appears informing you that this will stop the DX-NAS server as well.
Note: If you prefer to use the Windows command line, you can enter
net stop “EMC DX NAS Database”
4. Click Yes.
The services stop.
5. If you want to make copies of the log files, change to the folder C:\Program Files\EMC\DXNAS\Server\logs, and copy DXNASLog.log and DXNASServerLog_x.log to a different location.
6. In the services panel, right-click EMC DX NAS Server and click
Start.
Note: If you prefer to use the windows command line, you can enter
Resetting DX-NAS Logs on Solaris and Linux
To reset DX-NAS logs on Solaris and Linux:
1. Log in to the host where you installed the DX-NAS server as root. 2. Enter cd /opt/EMC/DXNAS/Server/database
If you installed the DX-NAS server in a location other than the default location, use that location.
3. Enter ./DxnasServer stop
4. Enter ./DxnasDb stop
5. If you want to make copies of the log files, change to the subdirectory /opt/EMC/DXNAS/Server/logs, and copy DXNASLog.logand ConsoleServerLog to a different location. 6. Enter /opt/EMC/DXNAS/Server/bin/DxnasDb start
7. Enter /opt/EMC/DXNAS/Server/bin/DxnasServer start
There are some differences in the way the DX-NAS works with a source host that is an EMC Celerra and a source host that is a NetApp filer.
Table 6 identifies the areas where the UNIX/Linux and Microsoft Windows versions of DX-NAS differ.