Configure NAS for backup storage

You can use network attached storage to support backup/restore and data loading.

Some operations, like backup/restore and data loading, require you to either read or write large files. You can mount a NAS (network attached storage) file system for these operations. Currently, ThoughtSpot does not have an option for direct attached storage. Your NAS storage can use whichever drive format you would like.

This procedure shows you how to mount a NAS file system for storing or accessing large files. The file system will be mounted at the same location on each node in the cluster automatically. When any node is restarted, the file system will be mounted again automatically, if it can be found.

When supplying a directory for writing or reading a backup, you can specify the mount point as the directory to use. Likewise, you can stage data there for loading.

Backups are written by the Linux user admin. If that user does not have permission to write to the NAS file system, you could write the backups to disk (for example /export/sdc1, /export/sdd1, /export/sde1, or /export/sdf1) and then set up a cron job that executes as root user and copies the backup to the NAS device every night, then deletes it from the directory.

Do not send the periodic backups or stage files on /export/sdb1 since it is a name node. It is used internally by Hadoop Distributed File System (HDFS) and if this drive fills up, it can cause serious problems. Do not allow backups or data files to accumulate on ThoughtSpot. If disk space becomes limited, the system will not function normally.

You can mount NAS using tscli.

Mount NAS using tscli

To mount a NAS file system using the tscli, follow these steps:

  1. Log in to the Linux shell using SSH.

  2. Mount the directory to the file system by issuing the appropriate command:

    • Example for an NFS (Network File System) directory:

      tscli nas mount-nfs --server
         --path_on_server <path>  /tsdev-backup --mount_point /export/BACKUPS/
         --options vers=<version>,sec=<security scheme>,<OPTIONS>
      Other command-line options are available to forward to the command (default: noexec).
    • Example for a CIFS (Common Internet File System) directory. Use 1001 for the uid and gid, as in the example:

      tscli nas mount-cifs --server
        --path_on_server /tsdev-backup --mount_point /export/BACKUPS/
        --username 'avtprdweutspotdev' --uid 1001 --gid 1001 --options 'vers=3.0'
      Other command-line options are available to forward to the mount.cifs command (default: noexec).
  3. Use the mounted file system by referring to its mount point.

  4. When you are finished with it, you can optionally unmount the NAS file system:

     tscli nas unmount --dir <directory>

Additional resources

As you develop your expertise in NAS mounts, we recommend the following ThoughtSpot U course:

See other training resources at ThoughtSpot U

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