Views:

Summary



If enabled, your backed up volumes are verified. You can select whether they will be verified "inline" or "deferred" (see descriptions in option below). You can also choose Simple or Advanced. For a Simple Volume verification, a “dir” (Windows) or “ls” (Linux) is performed to verify the file list. For an Advanced Volume verification, a chkdsk (Windows) or fsck (Linux) is performed to verify the integrity of the volume’s file system

Step By Step



Configuring the volume verification for a node can be accomplished by the following steps
Post DPX 4.5.1:
  1. Navigate to the Configure Enterprise screen.
  2. Select a node to enable volume verification.
  3. Navigate to the Verification options and select the following:
  • Select Verify Volume time.
    • deferred
    • inline 
  • Select the Verification type
    • Simple ( default setting) does a simple mount of the volume in question and verifies the volume can be browsed ( fastest method)
    • Advanced does a chkdisk of the volume and can take a long time  
  • Select the Verification Node ( does not need to be the same as the source server)   
  1. Click Apply.


Pre DPX 4.5.1
Configuring the volume verification for a node can be accomplished by enabling the command line option -volverify when starting the management console. Once enabled, the volume verification options will display in the edit node panel of the Enterprise Configuration screen. 
For Windows: 
  • Locate the bexgui.bat in SSPRODIR/tool. 
  • Edit the bexgui.bat file to add -volverify at the end of line %JAVA_BEXGUI% -jar %BEXGUIFILE_RUN% 
  • Save bexgui.bat. 
  • Start the local management console. The new feature is now enabled. 
For Linux: 
  • Locate the file bexgui on SSPRODIR/misc. 
  • Edit the bexgui file to add -volverify at the end of the line $bexguijava/bin/java $JAVAOPTS -jar $PRODIR/http/webapps/ROOT/$guijar 
  • Save bexgui. 
  • Start the local management console. The new feature is now enabled. 
Starting the Java Web Start interface:
  • Locate the dpx.jnlp file on the master server in SSPRODIR/http/webapps/ROOT/. 
  • In dpx.jnlp, locate the <application-desc> tag and insert an <argument> tag: 
  • <application-desc main-class="MainClass" > 
  • <argument>-volverify</argument> 
  • </application-desc> 
  • Savethe dpx.jnlp file. 
  • On the current workstation, clear the Java cache to ensure the new dpx.jnlp file will be loaded. 
  • Start the Java Web Start interface and the volume verification option will be available.
On the nodes for which you wish to perform Simple Volume Verification:
 Add the following registry keys to HKEY_LOCAL_MACHINE\SOFTWARE\Syncsort\BackupExpress\<NODE_NAME>\0\
  • "VOLVERIFY_SIMPLE" to 'Y' or any other non-NULL string.
  • "SSMAPER"="– t 600"
  • "SA_MAPER_SEM_TIMEOUT"="60" 
This option uses a 'dir' shell command with the recursion option '/s' asserted, to verify the volume can be read and then quit as this would indicate that the volume can be mapped and the data is readable. The other two values are timeouts that can be adjusted as needed if the verification jobs fail due to timeout related errors.

On the verification node used for Volume Verification (e.g Master server)
Add the following registry keys to HKEY_LOCAL_MACHINE\SOFTWARE\Syncsort\BackupExpress\<NODE_NAME>\0\ 
  • "SSMAPER"="– t 600"
  • "SA_MAPER_SEM_TIMEOUT"="60" 
Once these settings have been added, restart the DPX services.


Keywords: enable simple light verification, simple light verification, simple volume verification, volume verification, semaphore, timed out on semaphore