
6-33
Expanding the System Configuration
Device Hot Swapping
If a hard disk drive is faulty, it can be removed and replaced without interrupting the system
activity, through the hot swapping feature implemented on the system.
The replacement operation is reserved to the system administrator (
root
authority).
This feature is available, with different modalities, either if the system is working in RAID
configuration or in not-RAID (normal or native High Availability) configuration.
•
Hot Swapping under Basic (JBOD) Configuration
, below
•
Hot Swapping under RAID Configuration
, on page 6-34.
Hot Swapping under Basic (JBOD) Configuration
Warning:
Before handling any device, be sure you know the rules described in
Device
Configuration
, on page 5-7.
Perform the following steps to replace one faulty hard disk drive.
1. Identify the faulty hard disk drive and stop running activity on it, if any.
2. Perform the preliminary software operations to remove it logically from the device
configuration database through the
SMIT
program.
Note:
If you need more detailed information, consult the
AIX 4.3 System Management
Guide: Operating System and Devices
, in the
Logical Volumes
and
System
Management Interface Tool
sections.
3. Open the device shutter by turning the device shutter key to the right.
4. Identify the faulty hard disk drive through the blue/green LED light off.
Note:
The LED light is blue if the disk is running in ULTRA-2/LVD mode, it is green if the
disk is running in ULTRA/SE mode.
5. Physically remove the hard disk drive according to the instructions described in
Hard
Disk Drive Removal
step 5
, on page 6-30.
6. Replace the hard disk drive with a new one according to the instructions described in
Adding a Hard Disk Drive to a Disk Cage
step
7
, on page 6-24.
7. Configure the new hard disk drive through the
SMIT
program (System Management
,
Devices
,
Add a Disk
)
and restore the original device configuration.
8. Check the blue/green LED is on; this means that the swapping procedure is successfully
completed.
9. Close the device shutter by turning the device shutter key to the left and store it safely.
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