Rohde & Schwarz R&S VENICE 2U, Руководство по оборудованию, Страница: 67 / 90

5-15 VENICE 2U | Hardware Guide | Version 1.2
Rohde & Schwarz DVS GmbH
Maintenance
 Backup or Recovery of the System Disk
5.6 Backup or Recovery of the System Disk
The R&S DVS system provides internally a USB flash drive that can be
used to back up or restore the operating system on the system hard
disk. With it you can, for example, set the system disk back to its man-
ufacturing state. Once selected as a boot device, it will launch a Live
Linux which in turn will either back up or restore the system hard disk.
The following sections describe how to create a backup image or per-
form a recovery of the system disk.
5.6.1 Creating a Backup Image of the System Disk
The following describes the steps to make a backup image of the sys-
tem hard disk and save it to the internal USB flash drive:
1. If appropriate, disconnect all Fibre Channel cables and all exter-
nally connected storage devices from the system.
2.
Turn on or restart the R&S DVS system and at the indicated
moment during start-up press [F4] on your keyboard to enter the
boot menu.
3. Once the boot menu is displayed on the screen, select the inter-
nally installed USB flash drive as the boot device and then press
[Enter] on your keyboard.
With this the target device has been selected. The system will now boot
from the internal USB and you will see a window on the screen where
you can select the DVS Rescue environment for loading:
Selecting wrong source device
For example, selecting the wrong source device could lead to a full
storage space and a termination of the process.
Do not execute any commands if you are not sure about the
correct source and target device.
To complete the loading of the
DVS Rescue
environment some user en-
tries are required. For this follow the instructions given on the screen.
The loading of the environment and the recovery process itself will both
try to initialize hardware that may not be present on your system. Any
error messages displayed during loading/initialization, e.g.
Failed
or
Warning
, can be disregarded. The recovery process should work none-
theless.
The storage space on the USB is limited. The number of backup images
that can be stored on the drive, besides the R&S DVS recovery image ex
factory available, depends on the size of the image files. If the process
fails, the storage drive may be full. However, an already created image
can be overwritten when assigning the same name to it.