Rohde & Schwarz DVS SpycerBox Flex, Hardware Manual

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2-12
SpycerBox Ultra/Flex Hardware Guide
2.3.2 System Disk Array
The system disk array contains hard disks for the operating system and
metadata. To prevent data loss in case a hard disk fails, they are normal-
ly RAID protected. Furthermore, these hard disks are protected with a
battery backup unit to prevent data loss, for instance, in case of a power
failure.
Figure 2-12: System disk array
The hard disks of the array are connected to the system with the help
of disk carriers which make the removal of a hard disk easy, for exam-
ple, in the event of a failure. The system disk array is equipped with the
same type of disk carriers as used in the hard disk array of the Spycer-
Box Flex (see section “Hard Disk Array” on page 2-6).
slot panel connectors The slot panel connectors of the DVS system
provide, for example, the network connections
to connect the system to a SAN. Furthermore,
if applicable, some additional panels may be
present for internal reasons or on customer re-
quest. More details about the slot panel con-
nectors can be found in section “Slot Panel
Connectors” on page 2-15.
More information about RAID can be found in section “Intro-
duction to RAID” on page 5-2. The battery backup unit is de-
scribed in section “Battery Backup Unit” on page 2-17.
Further information about how to remove and exchange a hard
disk can be found in section “Hard Disk Maintenance” on
page 5-2.
system disks metadata disks