Administrator Guide

To prevent data or application loss, back up the operating system drives before reinstalling NAS operating system.
This option is only available from factory configuration and not available if the system is restored from DVD.
Creating RASR USB recovery drive
To create an RASR USB recovery drive, a USB drive must be installed and recognized by the system before starting the
application. An 8 GB USB drive is sufficient.
Prerequisites
Operating system drives are backed up.
Steps
1. Insert a USB drive into the system.
NOTE: Creating an RASR USB recovery drive deletes all data on the USB drive.
2. Start the application by double-clicking the Create RASR USB Recovery Drive icon on the Windows Desktop.
The Dell EMC NX#### - Rapid Appliance Self Recovery (RASR) page is displayed. RASR displays information for each
USB drive that the RASR Recovery application identifies.
3. If more than one USB drive is detected, select the USB drive on which you want to install the RASR application.
4. To install the RASR application on the USB drive, complete the on-screen instructions that are displayed on the Create
RASR USB Recovery Drive application.
5. After the RASR USB drive is successfully created, verify that the USB drive boots properly by booting to the USB drive.
6. Complete the instructions in the Recovering OS using RASR USB Recovery Drive section.
7. After the RASR application has started, exit the application without performing any of the recovery actions and restart the
system.
This procedure completes verification that the USB recovery drive has been successfully created. Store the RASR USB drive
in a safe place for future use.
Recovering the Operating System using RASR USB Recovery Drive
Follow this procedure to recover the operating system from the RASR drive.
Prerequisites
Any failed hard drives have been replaced.
Steps
1. Insert the RASR USB drive into a USB port on the system.
2. Boot the system and during the Power On Self-Test (POST), press F11 to select Boot Manager.
3. In the Boot Manager screen, select One-shot BIOS Boot Menu.
4. Select the RASR USB drive as the boot device.
5. The system boots the RASR USB drive.
6. To start RASR:
a. Select the keyboard layout.
b. Click the Troubleshoot icon.
c. Click the Rapid Appliance Self Recovery icon.
d. Click the Windows Server 2016 icon.
NOTE: Replace any failed hard drives before running the RASR application.
7. On the Welcome to Dell Rapid Appliance Self Recovery (RASR) page, click Next to start the recovery process.
8. Under Recovery Mode Selection, select one of the following the options:
System RecoveryEnabled if a Windows backup is found on any of the system hard drives. System Recovery restores
the operating system from a Windows backup. If a Windows Backup image is not found, this option is disabled.
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Managing your NAS system