Exporting an NFS share

The NFS share capture method allows you to copy data from your data source to the Transfer Appliance, by exporting directories on the Transfer Appliance via NFS.

Data copied onto the exported NFS share is encrypted and saved in a staging area on the Transfer Appliance.

When you use NFS shares on the TA480, the Transfer Appliance creates up to four partitions that are each 100TB. To successfully complete an NFS share capture, ensure that your data is arranged in 100TB or smaller chunks.

Prerequisites

You need to know the following information to export an NFS share:

In addition, make sure that:

Creating an NFS share

To create NFS shares:

  1. Open the Transfer Appliance Web User Interface.

  2. Select Data Capture from the Menu icon.

  3. Select Export NFS Share from the Data Capture pane.

    The NFS Share window appears and displays any currently available NFS shares.

  4. Click Create Share to create a new NFS share.

  5. Enter the NFS share name.

  6. For the NFS client name(s) or IP Address(es), enter the comma separated client names or IP addresses on which you wish to mount and access the NFS share.

  7. If the share is to be accessible for all clients, click the Accessible to all clients checkbox.

  8. Click Create to create the new NFS share on Transfer Appliance.

  9. If you want to access the NFS share from additional NFS clients, click the NFS Share radio button and edit the client name or IP address.

Mounting NFS exports on data source servers

Repeat this procedure on each source server or workstation from which you need to copy data. Mounting is a manual procedure on each data source system.

Run the following command from the command prompt:

Linux

Run the following command from the command prompt to mount the NFS client software, which mounts the NFS share on a Linux server:

sudo mount -t nfs [TRANSFER_APPLIANCE_ADDRESS]:/nfs/[SHARE_NAME] -o rw,nolock,hard,intr,noatime,nocto [SHARE_MOUNT_PATH]

For example, where share1 is the share name and /mnt/nfs1/ is the mount path:

sudo mount -t nfs 192.168.5.10:/nfs/share1 -o rw,nolock,hard,intr,noatime,nocto /mnt/nfs1/

After mounting the NFS share, you can copy files onto the NFS mounted path using the cp command.

Microsoft Windows

Run the following command from the command prompt to mount the NFS client software, which mounts the NFS share on a Microsoft Windows server:

mount \\[TRANSFER_APPLIANCE_ADDRESS]:/nfs/[SHARE_NAME] -o nolock,hard,intr,noatime,nocto [DRIVE_LETTER]

For example, where share1 is the share name and /mnt/nfs1/ is the local mount path:

mount 192.168.5.10:/nfs/share1 -o rw,nolock,hard,intr,noatime,nocto N:

After mounting the NFS share, you can copy files onto the NFS mounted path using one of these methods:

  • Windows Explorer drag and drop feature on Microsoft Windows.
  • copy command.
  • rsync command.
  • Microsoft Windows Robocopy tool.

Processing NFS exports

Processing an NFS share compresses and deduplicates the previously encrypted data stored on the NFS share staging area.

Once you start processing, you cannot copy data to the NFS share. When processing is complete, the NFS share is deleted from the Transfer Appliance.

To process NFS exports:

  1. Open the Transfer Appliance Web User Interface.

  2. Navigate to the Job Monitor window to monitor changes to the data size for NFS exports. The data is compressed as part of its processing.

  3. Click the Settings icon.

  4. Select Process. The Process an NFS Share window appears.

  5. If you want to exclude symbolic links, click the Exclude symlinks checkbox.

  6. Click OK.

Resuming suspended NFS shares

When there is less than 500GB free space remaining on the Transfer Appliance, copying new data to all NFS exports is suspended. You will see the notification on the Transfer Appliance Web User Interface. This suspension can interrupt files being copied, resulting in incomplete data capture.

To resume suspended NFS shares:

  1. Finish processing one or more of the NFS exports before you can resume copying data to the exported NFS share. Once an exported NFS share finishes processing, you can delete the share to free up the space it consumed, allowing the data capture to continue. See Processing NFS exports.

  2. Navigate to the Job Monitor window.

  3. For each NFS share job that you want to resume, click the More icon and select Make Available.

  4. Delete the partially copied file(s). For Linux, use the rm command. For Microsoft Windows, right-click the file name and select Delete. Once an exported NFS share finishes processing, you can delete the share to free the space it consumed, allowing the data capture to continue. See Processing NFS exports.

  5. Restart the copy job. This completes the data capture.

What's next

If you have data on HDFS you'd like to capture, see Performing an HDFS Capture.

To monitor data capture jobs, see Monitoring Data Capture Jobs.

If you are done capturing data, see Shipping Transfer Appliance.

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Transfer Appliance Documentation