Siemens SIMATIC IPC847D Operating Instructions Manual page 85

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Status displays of the hard disk drives in a RAID1 system
A defective hard disk drive in the RAID1 system is signaled with the status displays at the
front of the device.
The following tables include information on the alarms of the status displays. If the hard disk
drive is defective and the SIMATIC monitoring software is installed, the LEDs of the status
display light up individually or simultaneously.
Internal hard disk drive or hard disk drive in removable drive bay
Status display
HDD0 alarm
HDD1 alarm
Mounting locations for hard disk drives in the RAID5 system
Contrary to a RAID1 system, hard disk drives for a RAID5 system can only be installed on
the front in the removable drive bays.
Note
The replacement of a hard disk drive with removable drive bays and in the RAID system can
be performed without shutting down the device.
The new hard disk drive can be integrated into the RAID5 system at operating system level
with the RAID software. Synchronization may take several hours, depending on system load.
SIMATIC IPC847D
Operating Instructions, 01/2014, A5E32997454-AA
Removable drive bay 0
Removable drive bay 1
"Power" LED; power supply available
"HDD" LED, access to hard disk drive
RAID BIOS
Port 0
Port 1
Expanding and assigning parameters to the device
RAID software SATA connection of
the motherboard
Device port 0 SATA 0
Device port 1 SATA 1
6.5 Drives
Drive
0
1
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