Veritas Access Appliance Troubleshooting Guide

Last Published:
Product(s): Appliances (7.4.3)
Platform: Veritas 3340,Access Appliance OS
  1. Introduction
    1.  
      About troubleshooting
    2.  
      General tips for the troubleshooting process
    3.  
      General techniques for the troubleshooting process
  2. General troubleshooting procedures
    1.  
      About general troubleshooting procedures
    2.  
      Viewing the Access Appliance log files
    3.  
      About event logs
    4.  
      About shell-activity logs
    5.  
      Setting the CIFS log level
    6.  
      Setting the NetBackup client log levels and debugging options
    7.  
      Retrieving and sending debugging information
    8.  
      Insufficient delay between two successive OpenStack commands may result in failure
  3. Monitoring Access Appliance
    1.  
      About monitoring Access Appliance operations
    2.  
      Monitoring processor activity
    3.  
      Generating CPU and device utilization reports
    4.  
      Monitoring network traffic
  4. Common recovery procedures
    1.  
      About common recovery procedures
    2.  
      Restarting servers
    3. Bringing services online
      1.  
        Using the services command
    4.  
      Recovering from a non-graceful shutdown
    5.  
      Testing the network connectivity
    6.  
      Troubleshooting with traceroute
    7.  
      Using the traceroute command
    8.  
      Collecting the metasave image of a file system
    9.  
      Replacing an Ethernet interface card (online mode)
    10.  
      Replacing an Ethernet interface card (offline mode)
    11.  
      Replacing an Access Appliance node
    12.  
      Replacing a disk
    13. Speeding up replication
      1.  
        About synchronizing a replication job
      2.  
        Synchronizing an episodic replication job
    14.  
      Uninstalling a patch release or software upgrade
  5. Troubleshooting the Access Appliance cloud as a tier feature
    1.  
      Troubleshooting tips for cloud tiering
    2.  
      Issues when reading or writing data from the cloud tier
    3.  
      Log locations for checking for cloud tiering errors
  6. Troubleshooting Access Appliance installation and configuration issues
    1.  
      How to find the management console IP
    2.  
      Viewing the installation logs
    3.  
      Installation fails and does not complete
  7. Troubleshooting Access Appliance CIFS issues
    1.  
      User access is denied on a CTDB directory share
  8. Troubleshooting Access Appliance GUI startup issues
    1.  
      Resolving GUI startup issues
  9.  
    Index

Collecting the metasave image of a file system

You can collect a metasave image of a regular or a scale-out file system for troubleshooting file system issues. Metadata is a data structure that contains attributes about the data within a file system, but does not contain the actual data itself. You can use metadata images for tracking file system trends, such as the file size, age, and type of information in the file system.

Note:

When using the Support> metasave command, the file system must be offline on all the cluster nodes to create a consistent metasave image. Bring the file system offline using the Storage> fs offline command before collecting the metasave image. Metasave image collection is a time consuming operation. The total time that is required depends on the amount of metadata information present in the file system. If you have a scale-out file system, it can take significantly longer to collect a metasave image. You can run other Access Appliance operations from a separate terminal while running the metasave operation.

To collect the metasave image of a file system

  • To use the Support> metasave command, enter the following:
    Support> metasave [fsname] [output_location]

    fsname

    Specifies the name of the file system for which you want to collect a metasave image of the file system.

    output_location

    Specifies the directory location of the metasave image.

    For a regular file system, a single metasave image is stored at the directory location specified by output_location.

    For a scale-out file system, multiple metasave images are produced depending on the number of container file systems inside the scale-out file system. For scale-out file systems, the namespace mapping is also included in the metasave image.

    For example, to collect the metasave image of file system testfs, and store it under /tmp/meta_out_dir, enter the following:

    Support> metasave testfs /tmp/meta_out_dir
Collecting metasave image of file system testfs. This may take some time...
SUCCESS: Metasave image of testfs collected successfully. 
Image is stored at /tmp/meta_out_dir.