5. ICMP
ICMP location in the Card Cage of a L-series projector.
1
2
Image 5-5
5.2
ICMP HDD
About ICMP HDD
The three HDDs (local storage) in the ICMP, are set up in a RAID 5 con
fi
guration. This storage technique, that combines multiple
HDD components into a logical unit, manages enough redundancy information to continue to operate properly after the loss of one
HDD.
Image 5-6
C
AUTION
:
A RAID 5 con
fi
guration with three HDDs allows a maximum loss of one disk. With the simultaneous
loss of more than one HDDs, data is lost and the RAID must be completely initialized again after replacement
of the defect HDDs with new HDDs!
About degraded mode
When a RAID array experiences the failure of one disk, it enters in degraded mode. Content storage and playback remains available
on the ICMP.
C
AUTION
:
The loss of one disk causes no serious consequences on the ICMP. But action must be taken
quickly because the loss of a second disk will make the RAID system broken. The main cause of the total loss
of RAID is due in most cases to the loss of the second disk while the
fi
rst has not been rebuilt!
A failed drive should be replaced as soon as possible.
About “RAID recovery” process
The restoration from degraded to normal condition of the RAID 5 system is done automatically. When the RAID controller detects a
new HDD to replace the failed disk the recovery procedure starts automatically.
C
AUTION
:
The automatic process does not work if more than one disk is lost. In that case the RAID must be
completely initialized again!
R5906787 THOR 26/01/2018
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Summary of Contents for Thor
Page 1: ...Thor User manual R5906787 02 26 01 2018...
Page 6: ...Table of contents 2 R5906787 THOR 26 01 2018...
Page 8: ...1 Welcome 4 R5906787 THOR 26 01 2018...
Page 26: ...3 Lenses Lens selection 22 R5906787 THOR 26 01 2018...
Page 34: ...4 Input Communication 30 R5906787 THOR 26 01 2018...
Page 62: ...6 Starting up 58 R5906787 THOR 26 01 2018...