IBM DS3500, Installation, User'S, And Maintenance Manual

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Drive activity LED (green)
When this LED flashes, it indicates that there is activity to the drive.
Drive status LED (amber)
When this LED flashes, it indicates that the drive has been identified by the software. When
this LED is lit and not flashing, it indicates that the drive has failed.
v Hot-swap hardware: The storage subsystem contains hardware that enables you to replace a failed
drive without turning off the storage subsystem. You can continue to operate the storage subsystem
while a drive is being removed or installed. These drives are known as hot-swap drives.
Removing a hard disk drive
To remove a hot-swap drive, complete the following steps.
Note: The drive comes installed in a drive tray. Do not attempt to detach the drive from the tray.
Attention: Handle drives gently and do not stack them. Follow all precautions for static-sensitive
devices.
1. Use “Hard disk drive locations” on page A-1 to record the location and identify the drives. Record
this information so that you can replace the drives in the same bays from which you removed them.
2. Read the safety information that begins on page “Safety” on page xi and “Best practices guidelines”
on page 1-7.
Attention: Never remove a drive when its green activity LED is flashing. Remove a drive only when
its amber status LED is lit (not flashing), when the drive is inactive (activity LED is off), or when the
storage subsystem is turned off.
3. (DS3512 and EXP3512) Remove the drive.
Hard disk drive activity LED
Hard disk drive status LED
Figure 5-9. DS3512 storage subsystem and EXP3512 storage enclosure drive LEDs
Hard disk
drive status
LED (amber) Hard disk
drive activity
LED (green)
Figure 5-10. DS3524 storage subsystem and EXP3524 storage enclosure drive LEDs
Chapter 5. Replacing components
5-13