Device maintenance and repair   
7.4 Removing and installing hardware 
  SIMATIC IPC627D/827D 
80  Operating Instructions, 09/2014, A5E32990859-AB 
 
Removing and installing hardware 
7.4.1
 
Replacing a defective hard disk drive in the RAID system 
A hard disk can only be replaced during operation in the removable drive bay in connection 
with a configured RAID1 system. This functionality is referred to as "Hot Swap". 
 
 
Note 
If you have configured a non
-RAID system with several hard disks, or in the case of an 
internally installed hard disk, you need to turn off the device before you replace a hard disk.
 
Observe the EGB guidelines. Always replace the drive with a new drive of the same type and 
capacity. 
Mounting locations for hard disks in the RAID1 system 
Hard disks for a RAID1 system can be installed permanently in the device or in a removable 
drive bay. 
 
Note 
The replacement of a RAID hard disk with removable drive bay can be performed without 
shutting down the device. An internal hard disk may only be replaced when the device is 
switched off.
 
disk can be integrated into the RAID system at operating system level with the 
RAID software. Synchronization may take several hours, depending on system load.
 
Status displays of the hard disks in a RAID1 system  
The following table includes information on the alarms of the status displays. If the hard disk 
is defective and the SIMATIC DiagBase monitoring software is installed, the LEDs of the 
status display light up individually or simultaneously. 
Internal hard disk or hard disk in removable drive bay 
 
SATA connection of 
the motherboard