Siemens SIMATIC IPC847D Operating Instructions Manual page 86

Expanding and assigning parameters to the device
6.5 Drives
The following figure shows an RAID5 system with three hard disk drives as an example and
a hot spare hard disk drive in the removable drive bay.
①
②
③
④
⑤
⑥
Status displays of the hard disk drives in a RAID5 system
A defective hard disk drive in the RAID5 system is displayed by 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.
Status display
HDD0 alarm
HDD1 alarm
HDD2 alarm
HDD3 alarm
Replacing a defective hard disk drive in the RAID system
1. Determine which hard disk drive has been reported as defective by the RAID software
(HDD on port 0, 1, 2 or 3).
2. Remove the defective hard disk drive (internal drive or drive in removable drive bay).
3. Replace the defective hard disk drive with a drive of the same type and capacity.
Information about the recovery of the RAID system is available in the section "Integrating
new hard disk into the RAID system".
86
Removable drive bay 0
Removable drive bay 1
Removable drive bay 2
Removable drive bay 3
"Power" LED; power supply available
"HDD" LED, access to hard disk drive
RAID BIOS
Port 0
Port 1
Port 2
Port 3
RAID software SATA connection of
the motherboard
Device port 0 SATA 0
Device port 1 SATA 1
Device port 2 SATA 2
Device port 3 SATA 3
Operating Instructions, 01/2014, A5E32997454-AA
Drive
0
1
2
3
SIMATIC IPC847D