Maintenance
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User Manual (Hardware) | 2904.4460.02 - 04
SSD Disk Maintenance
CLIPSTER
RAID Storage Protection
In a system with huge amounts of data processed, large storage capacities
combined with high data throughputs are mandatory. To provide both at the
same time it is common practice in the area of video and digital film to
configure several SSD disks together into a stripe set or RAID.
The RAID feature makes the R&S system tolerant of disk failures. Even with
a broken disk operations can still be continued and, once the failed disk has
been replaced, the missing data can be easily recovered. The data protec-
tion is provided by a RAID controller installed inside the system. The
controller administers the data protection for the sets of SSD disks
connected to it.
The optional internal storage of the R&S system comprises one or more
SSD disk packs. These are connected to RAID controllers in a RAID 5 setup.
With this, the data is striped across these SSD disks during write proce-
dures. At the same time the information necessary to rebuild a failed disk
(parity information) is generated and written across the disks as well. With
the parity information written, one SSD disk per disk set (RAID pack) can fail
and your data will still be recoverable as the information is stored on the
other disks.
You can identify the SSD disks that are connected to a RAID controller
easily at the R&S system because every two rows represent one disk
set/RAID pack:
Disk sets (RAID packs) of the SSD disk array
With the available RAID feature the R&S system can withstand disk failures
without losing data or access to data.
Data Loss
If a second disk within the same disk set fails in the mean-
time, the data will be unrecoverable.
disk
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t 2
disk
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t 1
